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WO2017090866A1 - Battery pack comprising fire extinguishing device, and control method using same - Google Patents

Battery pack comprising fire extinguishing device, and control method using same Download PDF

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Publication number
WO2017090866A1
WO2017090866A1 PCT/KR2016/009333 KR2016009333W WO2017090866A1 WO 2017090866 A1 WO2017090866 A1 WO 2017090866A1 KR 2016009333 W KR2016009333 W KR 2016009333W WO 2017090866 A1 WO2017090866 A1 WO 2017090866A1
Authority
WO
WIPO (PCT)
Prior art keywords
fire
battery pack
module case
cell
extinguishing agent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2016/009333
Other languages
French (fr)
Korean (ko)
Inventor
์ด๊ธฐ์˜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Chem Ltd
Original Assignee
LG Chem Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020160105058A external-priority patent/KR102010012B1/en
Application filed by LG Chem Ltd filed Critical LG Chem Ltd
Priority to PL16868767T priority Critical patent/PL3340337T3/en
Priority to CN201680056296.6A priority patent/CN108028334B/en
Priority to EP16868767.1A priority patent/EP3340337B1/en
Priority to US15/757,476 priority patent/US10651438B2/en
Publication of WO2017090866A1 publication Critical patent/WO2017090866A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/20—Pressure-sensitive devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a battery pack, and more particularly, to a battery pack including a fire extinguishing device for effectively blocking the early occurrence of fire due to overcharging or abnormal operation of the battery.
  • the invention also relates to a control method for a motor vehicle comprising such a battery pack.
  • lithium secondary batteries are in the spotlight for their advantages such as free charge and discharge, very low self-discharge rate, and high energy density compared to nickel-based secondary batteries.
  • Such lithium secondary batteries mainly use lithium-based oxides and carbon materials as positive electrode active materials and negative electrode active materials, respectively.
  • the lithium secondary battery includes an electrode assembly in which a positive electrode plate and a negative electrode plate coated with such a positive electrode active material and a negative electrode active material are disposed with a separator interposed therebetween, and a packaging material for sealing and storing the electrode assembly together with an electrolyte, that is, a battery case.
  • the battery pack of the hybrid vehicle or the electric vehicle includes a plurality of secondary batteries, and the plurality of secondary batteries are connected to each other in series and in parallel to improve capacity and output.
  • BMS battery management system
  • a fire is detected by using a temperature sensor, a current and a voltage sensor, and when a fire is detected, a fire extinguisher provided separately from the battery pack is operated.
  • a conventional fire detection and extinguishing method should be equipped with a temperature sensor and a current / voltage sensor, and these sensors often lack the accuracy to diagnose the fire early, and thus often prevent the protection of the vehicle and life.
  • the role of the BMS is meaningless, and there is a problem that a vehicle and a life loss occur.
  • the present invention has been made to solve the above problems, the problem to be solved by the present invention is to prevent the fire of the battery pack, or even if the battery pack ignited by preventing the spread of the fire by preventing the risk of fire when ignition To provide a battery pack with improved safety to reduce.
  • Another object of the present invention is to provide a control method for preventing an accident of a vehicle such as an electric vehicle by using such a battery pack.
  • the battery pack according to the present invention for solving the above problems is a battery pack having a single or a plurality of cells having an electrode assembly consisting of a positive electrode, a negative electrode and a separator and a pouch type battery case for accommodating the electrode assembly.
  • the cell is housed and stacked by a module case, and the module case includes a fire suppressing material or a fire extinguishing agent inside or outside, so that the fire suppressing material or fire extinguishing agent is automatically discharged from the module case when swelling of the cell occurs.
  • the module case includes a fire suppressing material or a fire extinguishing agent inside or outside, so that the fire suppressing material or fire extinguishing agent is automatically discharged from the module case when swelling of the cell occurs.
  • the fire suppressing material or the extinguishing agent is located as a lumped extinguishing powder on the inner wall of the module case and the cell as the module case wall is opened by swelling of the cell. It may be falling to the side.
  • the fire suppressing material or extinguishing agent is contained in the module case and may be sprayed toward the cell when the module case is opened or cracked due to swelling of the cell.
  • the fire suppressant or extinguishing agent is preferably located in an empty space inside the module case.
  • the module case is made by pre-filling the fire suppression material or the extinguishing agent through the empty space inside the module case, if the above structure is configured, there is no need to provide a separate space for placing the fire suppression material or the extinguishing agent. The difficulty of securing space can be reduced.
  • the horizontal sensor is determined that the module case wall is twisted If the fire suppression material or extinguishing agent may be injected into the cell.
  • the discharge of the fire suppressant or extinguishing agent may be caused by a signal from the controller, and the fire suppressor or extinguishing agent may be powder or liquid.
  • the horizontal sensor determines a horizontal surface of the wall of the module case. Since the module case is in intimate contact with the cell, when the cell swells when an overcharge situation occurs, the module case wall also opens, for example, in a semicircular shape.
  • the horizontal sensor may be installed at a predetermined interval to determine whether the module case wall is distorted.
  • the MCU included in the BMS of the battery pack is set to a first reference value, which is an acceptable value, although the module case wall surface is misaligned with the horizontal plane in a normal state, and the module case wall surface is
  • the warning notification is notified to the MCU included in the BMS of the battery pack when the first reference value is misaligned with the horizontal plane in the normal state, and the MCU measures the current cell voltage through an ASIC IC that measures the cell voltage. , OV) state. If the cell voltage is normal, the warning signal is held for several seconds or several minutes and then returned to normal state. If the battery is actually in an overcharge state (the cell voltage is higher than the full charge state), the relay of the battery pack is turned off (notified after a few seconds to several minutes if the vehicle is running) so that there is no current flow. This should not work.
  • the MCU is notified to the ECU of the vehicle including the battery pack so that the driver receives a vehicle inspection action.
  • the MCU has a second reference value that is larger than the first reference value and is a value for determining an abnormal situation such that the relay of the battery pack should be blocked, and the module case wall surface is compared with a horizontal plane in a normal state.
  • the module case is a structure for accommodating each cell therein and by placing the fire suppression material or extinguishing agent with an adhesive between each module case, by swelling of the cell When the adhesive surface is open, the fire suppression material or extinguishing agent may be diffused.
  • the fire suppression material or the extinguishing agent may be wrapped with a thin film or a film of a material that melts well in a fire, and then may be attached between the module cases or inside the module case through the adhesive.
  • a thin film or a film of a material that melts well in a fire When attached to the inside of the module case, it is to be located in the upper end of the cell that is easy to use spatially. Thus, when attached to the surface with the electrode lead of the cell, it is possible to apply without harming the entire structure.
  • the fire suppressing substance or extinguishing agent may be one substance selected from the group consisting of calcium carbonate, first ammonium phosphate and a halogen compound.
  • the present invention when the cell included in the battery pack is swelled due to overcharge, abnormal operation, etc., it automatically discharges the fire suppression material or the extinguishing agent, so that the fire extinguishes rapidly in the event of a fire due to abnormal operation of the battery and fires in advance It can also be prevented. It is possible to effectively extinguish a fire without a separate injector or a device such as a temperature or pressure sensor, and it is also possible to extinguish a fire simply and economically.
  • the fire suppressing material or extinguishing agent is placed inside or outside the module housing accommodating the cell to automatically discharge during swelling of the cell, the fire suppressing material or extinguishing agent can be precisely injected to the ignition point at an appropriate timing. As a result, it is possible to extinguish the fire early and install the fire suppression material or the extinguishing agent in the free space of the module case inside the battery pack, thereby reducing the additional production cost and eliminating the need for a separate fire extinguisher installation space.
  • the present invention it is possible to effectively and quickly prevent the battery pack from igniting, thereby improving the safety of the battery pack.
  • the ignition of the battery pack can be prevented, it is possible to prevent the battery pack from being damaged or the fire being transferred to another device or equipment due to the fire generated from the battery pack, thereby preventing additional life and property damage.
  • the control method using a battery pack according to the present invention by discharging the fire suppression material or extinguishing agent through the wall of the module case, so as not to be charged when in an overcharged state, When the degree of distortion is severe, it is possible to notify the driver of the vehicle, such as a battery car including the battery pack to receive the vehicle inspection measures, there is an effect of preventing an accident due to the battery pack and the vehicle abnormality including the same.
  • FIG. 1 is a perspective view showing an example of a pouch-type battery provided in the present invention.
  • FIG. 2 is a schematic cross-sectional view showing the structure of a battery pack according to an embodiment of the present invention.
  • FIG 3 is a schematic cross-sectional view showing the structure of a battery pack according to another embodiment of the present invention.
  • FIG. 4 is a schematic cross-sectional view showing a structure of a battery pack according to still another embodiment of the present invention.
  • FIG. 5 is a schematic cross-sectional view showing the structure of a battery pack according to still another embodiment of the present invention.
  • FIG. 6 is a schematic view for explaining a control method according to the present invention.
  • FIG. 7 is a flowchart illustrating a control method according to the present invention.
  • FIG. 1 is a perspective view showing an example of a pouch-type cell provided in the present invention.
  • the cell 10 is heat-sealed on the outer circumferential surface of the pouch-type battery case 20 in a state in which the electrode assembly 30 is built in the battery case 20 of the laminate sheet including the resin layer and the metal layer. It is a sealed structure.
  • the electrode assembly 30 includes a positive electrode and a negative electrode and a separator interposed therebetween to prevent a short circuit between the two electrodes.
  • Each electrode plate is made by coating an active material slurry on a current collector made of a metal foil.
  • the electrode plate there are non-coated portions to which the slurry is not applied.
  • electrode tabs are normally provided one by one on the electrode plate.
  • the electrode tab is welded with the electrode lead 40 to be drawn out of the battery case 20 to form a part of a passage for connecting the electrode assembly 30 and an external circuit during charging and discharging.
  • the electrode leads 40 may be formed in both directions so that one is pulled upward and the other is pulled downward, and both may be formed in one direction so as to be pulled upward.
  • the unidirectional case is taken as an example.
  • the electrode assembly 30 is sealed inside the battery case 20 together with the electrolyte solution.
  • the cell 10 is generally formed in a plate shape having a substantially rectangular parallelepiped structure having a thin thickness to width.
  • the battery case 20 sequentially stacks an outer coating layer made of a polymer resin having excellent durability, a blocking layer made of a metal material exhibiting barrier properties against moisture, air, and the like, and an inner sealant layer made of a polymer resin that can be heat-sealed. It consists of a laminated sheet structure.
  • the cell 10 is not particularly limited as long as it is a secondary battery capable of providing high voltage and high current when the battery pack is constructed.
  • the cell 10 may be a lithium secondary battery having a large amount of energy storage per volume.
  • the cell 10 shown in FIG. 1 has a heat-sealed outer circumferential surface fixed between cartridges fixing the cells 10 to form a battery cell stack so as to form a module or a pack, or to be stored in one module case, respectively.
  • the cells 10 may be stacked in a single or plural number to form a module or a pack.
  • the present invention is a battery pack including such a module as a unit module.
  • the battery pack can be manufactured by combining the unit modules according to the desired output and capacity, and considering the mounting efficiency and structural stability, power packs such as electric vehicles, hybrid electric vehicles, plug-in hybrid electric vehicles, and power storage devices can be manufactured. Although it may be preferably used, the scope of application is not limited to these.
  • FIGS 2 to 5 are schematic cross-sectional views showing the structure of the battery packs according to an embodiment of the present invention.
  • 2 to 5 are views showing a cut surface of the battery pack stacked along the stacking direction by storing the cell 10 as shown in FIG. 1 in the module case 50, for example, corresponding to the XX โ€ฒ cross section of FIG. 1. do. 2 to 5, (a) shows a steady state, and (b) shows a swelling state of the cell 10.
  • FIG. 2 to 5 illustrate a battery pack including two or three cells 10, the number of cells 10 provided in the battery pack and the shape of the module case 50 are described in this embodiment. It is not limited and may be provided arbitrarily according to the use or the objective of a person skilled in the art.
  • the cell 10 may include a singular or plural number.
  • the cells 10 are stacked and stored by the module case 50, and the module case 50 has a fire suppression material or a fire extinguishing agent 60 therein. Equipped with. As shown in (b), when the swelling of the cell 10 occurs, the fire suppressing substance or the extinguishing agent 60 is automatically discharged from the module case 50.
  • the fire suppression material or the extinguishing agent is discharged based on the swelling of the cell 10 without using a conventional fire detection means such as a temperature or a pressure sensor.
  • Fire extinguishing agents in this context are substances or mixtures which have an extinguishing action, preferably a fire suppression action and / or prevent or make fire outbreaks.
  • Fire extinguishing action in the context of the present invention preferably means the action of inhibiting fire, that is, an action that can inhibit or weaken the continuation or occurrence of a fire.
  • the main examples of extinguishing agents or their preferred inclusions include the removal of chemical reactants that can sustain a fire from the fire source, cooling to or below the flash point, or the elimination of the chemical reactions necessary to sustain the ignition or fire. It is a substance to suppress.
  • the carbon dioxide may be a material which is extinguished by a subcatalytic action in addition to blocking combustion of oxygen by reducing the oxygen source to about 16% by asphyxiation of carbon dioxide generated by pyrolysis.
  • a fire suppressant or extinguishing agent that is easy to obtain and simple to handle. It may be a powder or a liquid.
  • the fire suppressant or extinguishing agent herein is a suitable material for preventing or extinguishing a fire by pushing or removing a chemical reactant from the fire zone that is needed or promotes the occurrence or continuation of the fire.
  • the fire suppressant or extinguishing agent 60 may be any material having a extinguishing effect.
  • the is a moisture-proof processing with zinc stearate or magnesium as a one-jong digestion sodium bicarbonate (NaHCO 3), known as powder and materials which are colored in white, a second kind digestion powder as potassium bicarbonate (KHCO 3), known zinc stearate Or a substance which is moisture-proof processed with magnesium and is colored in purple, a first ammonium phosphate (NH 4 H 2 PO 4 ) known as a third type fire extinguishing powder, which is moisture-proof processed by silicon oil and colored in pink. Powders such as urea known as four types of digestive powders and potassium carbonate can be used.
  • the present invention is not limited to the type of fire suppressant or extinguishing agent 60, and may be one material selected from the group consisting of calcium carbonate (CaCO 3 ), first ammonium phosphate, and a halogen compound.
  • CaCO 3 calcium carbonate
  • first ammonium phosphate first ammonium phosphate
  • halogen compounds are evaporative liquefied extinguishing materials.
  • the fire suppressant or extinguishing agent 60 is in the module case 50 wall surface such that the wall of the module case 50 may fall toward the cell 10 when the wall of the module case 50 opens while maintaining the fire suppressant or extinguishing agent 60 under normal conditions. It is included inside or provided on the wall and covered with a film of weak strength so that when the wall of the module case 50 is opened, the film is dropped so that the fire suppressing material or the extinguishing agent 60 is discharged toward the cell 10. Can be configured. Of course, other examples are possible.
  • the fire suppressant or extinguishing agent 60 is contained in the module case 50 and sprayed toward the cell 10 when the module case 50 is opened or cracked due to the swelling of the cell 10.
  • the structure is also possible.
  • the fire suppressant or extinguishing agent 60 may be a powder or a liquid.
  • the module case 50 is manufactured by pre-filling the fire suppressing material or the extinguishing agent 60 through the empty space inside the module case 50 or by including the inside of the module case 50 wall. If the above structure is configured after the fire suppression material or extinguishing agent (60) do not need to provide a separate space to reduce the difficulty of securing space.
  • the fire suppressing material or the extinguishing agent 60 is automatically discharged, thereby preventing the fire or spreading the fire greatly. Can be prevented.
  • the present invention can significantly improve safety, which has been pointed out as a problem of the conventional lithium secondary battery, and in particular, can achieve an excellent safety improvement effect when using such a battery pack 100 in an electric vehicle.
  • the cell 10 is also stacked in the battery pack 200 by the module case 50, and the module case 50 has a fire suppression material or a fire extinguishing agent 60 therein. Equipped with.
  • the fire suppressant or extinguishing agent 60 is housed in a container 64 with an injector 62. As shown in (b), when the swelling of the cell 10 occurs, the fire suppressing substance or the extinguishing agent 60 is automatically discharged from the module case 50.
  • the battery pack 200 further includes a horizontal sensor 70 that can determine that the wall surface of the module case 50 by the swelling of the cell.
  • the horizontal sensor 70 determines the horizontal surface of the wall of the module case 50. Since the module case 50 is in close contact with the cell 10, when the cell 10 swells when an overcharge situation occurs, the wall of the module case 50 also opens, for example, in a semicircular shape.
  • the horizontal sensor 70 may be installed at a predetermined interval so that the wall of the module case 50 may be distorted.
  • the horizontal sensor 70 In the normal state as shown in FIG. 3A, since the wall of the module case 50 is not twisted, the horizontal sensor 70 does not output an abnormal signal. When the swelling occurs as shown in (b), the horizontal sensor 70 determines that the wall of the module case 50 is distorted and outputs an abnormal signal.
  • the control unit 80 is configured to receive the abnormal signal and inject the fire suppressing substance or the extinguishing agent 60, the fire suppressing substance or the extinguishing agent 60 is sprayed toward the cell 10 in this swelling situation. . That is, in the present embodiment, the horizontal detection sensor 70 and the control unit 80 are further provided, and when the control unit 80 is controlled by the horizontal detection sensor 70, a signal is generated and transmitted to the injection device 62. The signals may cause the release of the fire suppressant or extinguishing agent from the container 64 containing the fire suppressant or extinguishing agent 60.
  • the injection device 62 and the container 64 are only examples, and any form may be provided as long as the injection device 62 and the container 64 can be provided anywhere in the empty space generated between the cell 10 and the module case 50.
  • the controller 80 may be provided inside the module case 50.
  • the module case 50 may include a frame cartridge and a cover.
  • the module case 50 is a case having a 1: 1 structure for accommodating each cell 10 therein.
  • the module case 50 in the battery pack 300 has a structure for accommodating each cell 10 therein and a fire suppressing material with an adhesive 90 between the module cases 50. Or position extinguishing agent 60.
  • the adhesive surface is opened by the swelling of the cell 10 as shown in (b), the fire suppressing material or the extinguishing agent 60 is diffused.
  • the battery case 400 wraps a fire suppression material or a fire extinguishing agent 60 with a thin film or a film 92 of a material that melts well in a fire, and then the module case through the adhesive 90. 50 can be attached inside.
  • a fire suppression material or a fire extinguishing agent 60 with a thin film or a film 92 of a material that melts well in a fire
  • the module case through the adhesive 90. 50 can be attached inside.
  • Figure 4 (a) may be attached between the module case (50).
  • the present invention places fire suppressing substances or extinguishing agents inside or outside the module case of the battery pack so that the fire suppressing substances or extinguishing agents are automatically discharged when the cell is swelled, thereby preventing fires and It can be used quickly to minimize secondary fire damage such as battery explosion.
  • a battery pack is mounted on a vehicle such as a hybrid electric vehicle or an electric vehicle, the effect of protecting the driver and the surrounding people from fire is excellent.
  • Fire extinguisher according to the prior art is provided with a temperature, pressure sensor, etc. to detect a fire occurrence in the battery pack and install a fire extinguisher connected to the sensor around the battery pack to operate the fire extinguisher when the fire occurrence is detected from the sensor In most cases, it is configured to extinguish a fire.
  • the fire extinguisher according to the prior art has a problem that the fire extinguisher does not operate when the sensor does not detect the occurrence of fire.
  • the sensor is activated to detect the occurrence of a fire, there is a limit to the complete fire extinguishing if the fire direction of the fire extinguisher is not correct or the injection timing is not appropriate.
  • the fire extinguishing device for extinguishing a battery pack fire according to the prior art has a problem in that it becomes bulky because it cannot be mounted inside the battery pack.
  • the present invention by placing a fire suppressant or extinguishing agent in the battery pack to automatically discharge the fire suppressant or extinguishing agent when the cell is swelled, it is possible to accurately fire the fire at the appropriate timing without the need for a separate fire detection sensor Inhibitors or extinguishing agents can be sprayed to extinguish the fire prematurely, and the fire suppressant or extinguishing agents can be installed in the free space inside the battery pack, reducing the additional production costs and requiring no additional installation space. There is an advantage. As such, the present invention solves these problems of the prior art.
  • the electric vehicle equipped with the battery pack 200 as described with reference to FIG. 3 may be controlled through the control method according to the present invention as described below.
  • FIG. 6 is a schematic diagram for explaining a control method according to the present invention
  • Figure 7 is a flow chart for explaining a control method according to the present invention.
  • the horizontal sensor 70 in the battery pack 200 determines the horizontal surface of the wall of the module case 50 (step s10).
  • the MCU 220 included in the BMS 210 of the battery pack 200 includes a first reference value, a second reference value, and a first reference value and a second reference value to determine an operation according to how many percent of the wall of the module case 50 is misaligned with the horizontal plane in a normal state.
  • the third reference value is set in advance.
  • the first reference value is set to a value that is acceptable, although the wall surface of the module case 50 is distorted compared to the horizontal plane in the normal state.
  • the second reference value is greater than the first reference value and is determined as a value for determining an abnormal situation in which the relay 240 of the battery pack 200 should be blocked.
  • the third reference value is greater than or equal to the second reference value, and is determined as a value that is not only an abnormal situation but also the degree to which the fire suppressing substance or the extinguishing agent 60 should be injected. Since the first to third reference values may vary according to the type of the cell 10 or the battery pack 200, the first to third reference values may be adjusted according to a user setting. In this embodiment, a case where the first reference value is 15%, the second reference value is 50%, and the third reference value is 60% will be described as an example.
  • step s10 When the wall surface of the module case 50 is misaligned with the first reference value, 15% or more in the present embodiment (YES in step s10) compared with the horizontal plane in the normal state, but the second reference value, is less than 50% in the present embodiment ( The NO) warning notification of step s20 is notified to the MCU 220 included in the BMS 210 of the battery pack 200 (step s30). If the wall surface of the module case 50 is not misaligned by more than 15% in the first reference value, in this embodiment, in comparison with the horizontal plane in the normal state (NO in step s10), step s10 is performed again. Repeat this operation at regular intervals.
  • the MCU 220 receiving the warning notification in step s30 measures the current cell voltage through the ASIC IC 230 measuring the cell 10 voltage, and determines whether it is in an overvoltage (OV) state (step s40).
  • OV overvoltage
  • step s40 If the cell voltage is normal (YES in step s40), the warning signal is maintained for several seconds or minutes and then returned to the normal state (step s50).
  • the battery pack 200 is included through the MCU 220.
  • the ECU 260 of the vehicle 250 is notified to allow the driver to receive a vehicle inspection action (step s80).
  • the relay 240 of the battery pack 200 is turned off (if running) for several seconds. To shut off after a few minutes) so that there is no current flow to prevent charging (step s60). Then, the ECU 260 of the vehicle 250 including the battery pack 200 is notified to allow the driver to receive a vehicle inspection action (step s80).
  • the MCU 220 when the wall of the module case 50 is different from the horizontal plane in the normal state, when the second reference value, in this embodiment, is changed by 50% or more, that is, when the determined value in step s20 is YES, the MCU 220 outputs an abnormal signal. And directly send to the ECU 260 to block the relay 240 of the battery pack 200 (notifying that it is blocked after a few seconds to several minutes if running) and to inform the vehicle abnormal situation to prevent the driver from stopping the vehicle. It can be done.
  • the fire suppression material or the fire extinguishing agent 60 may be sprayed through the control unit 80, for example, to suppress the fire early (step s90). Then, the ECU 260 of the vehicle 250 including the battery pack 200 is notified to allow the driver to receive a vehicle inspection action (step s80).

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Abstract

Provided are a battery pack and a control method using the same, the battery pack having improved safety so as to prevent fire or prevent fire from spreading even if ignited , thereby reducing the risks which can occur during ignition. The battery pack , according to the present invention , comprises: an electrode assembly comprising an anode, a cathode, and a separator; and a single cell or a plurality of cells having a pouch-shaped battery case for accommodating the electrode assembly, wherein the cell is accommodated and stacked by the module case, the module case comprises a fire suppression agent or a fire extinguishing agent at the inner or outer part thereof such that the fire suppression agent or the fire extinguishing agent is automatically discharged from the module case when cell swelling occurs .

Description

์†Œํ™” ์žฅ์น˜๊ฐ€ ํฌํ•จ๋œ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ ๋ฐ ์ด๋ฅผ ์ด์šฉํ•œ ์ œ์–ด ๋ฐฉ๋ฒ•Battery pack with a fire extinguishing device and control method using the same

๋ณธ ๋ฐœ๋ช…์€ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์— ๊ด€ํ•œ ๊ฒƒ์œผ๋กœ, ๋ณด๋‹ค ์ƒ์„ธํ•˜๊ฒŒ๋Š” ์ „์ง€์˜ ๊ณผ์ถฉ์ „ ๋˜๋Š” ์ด์ƒ ๋™์ž‘์œผ๋กœ ์ธํ•œ ํ™”์žฌ ๋ฐœ์ƒ์„ ์กฐ๊ธฐ์— ํšจ๊ณผ์ ์œผ๋กœ ์ฐจ๋‹จํ•˜๊ธฐ ์œ„ํ•œ ์†Œํ™” ์žฅ์น˜๊ฐ€ ํฌํ•จ๋œ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์— ๊ด€ํ•œ ๊ฒƒ์ด๋‹ค. ๋ณธ ๋ฐœ๋ช…์€ ๋˜ํ•œ ์ด๋Ÿฌํ•œ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์„ ํฌํ•จํ•˜๋Š” ์ž๋™์ฐจ์˜ ์ œ์–ด ๋ฐฉ๋ฒ•์— ๊ด€ํ•œ ๊ฒƒ์ด๊ธฐ๋„ ํ•˜๋‹ค. ๋ณธ ์ถœ์›์€ 2015๋…„ 11์›” 26์ผ์ž๋กœ ์ถœ์›๋œ ํ•œ๊ตญ ํŠนํ—ˆ์ถœ์› ๋ฒˆํ˜ธ ์ œ10-2015-0166475ํ˜ธ ๋ฐ 2016๋…„ 8์›” 18์ผ์ž๋กœ ์ถœ์›๋œ ํ•œ๊ตญ ํŠนํ—ˆ์ถœ์› ๋ฒˆํ˜ธ ์ œ10-2016-0105058ํ˜ธ์— ๋Œ€ํ•œ ์šฐ์„ ๊ถŒ์ฃผ์žฅ์ถœ์›์œผ๋กœ์„œ, ํ•ด๋‹น ์ถœ์›์˜ ๋ช…์„ธ์„œ ๋ฐ ๋„๋ฉด์— ๊ฐœ์‹œ๋œ ๋ชจ๋“  ๋‚ด์šฉ์€ ์ธ์šฉ์— ์˜ํ•ด ๋ณธ ์ถœ์›์— ์›์šฉ๋œ๋‹ค.The present invention relates to a battery pack, and more particularly, to a battery pack including a fire extinguishing device for effectively blocking the early occurrence of fire due to overcharging or abnormal operation of the battery. The invention also relates to a control method for a motor vehicle comprising such a battery pack. This application is a priority application for Korean Patent Application No. 10-2015-0166475, filed November 26, 2015, and Korean Patent Application No. 10-2016-0105058, filed August 18, 2016. All the contents disclosed in the specification and drawings of this application are incorporated in this application by reference.

๊ทผ๋ž˜์— ๋…ธํŠธ๋ถ, ๋น„๋””์˜ค ์นด๋ฉ”๋ผ, ํœด๋Œ€์šฉ ์ „ํ™”๊ธฐ ๋“ฑ๊ณผ ๊ฐ™์€ ํœด๋Œ€์šฉ ์ „์ž ์ œํ’ˆ์˜ ์ˆ˜์š”๊ฐ€ ๊ธ‰๊ฒฉํ•˜๊ฒŒ ์ฆ๋Œ€๋˜๊ณ , ์ „๊ธฐ ์ž๋™์ฐจ, ์—๋„ˆ์ง€ ์ €์žฅ์šฉ ์ถ•์ „์ง€, ๋กœ๋ด‡, ์œ„์„ฑ ๋“ฑ์˜ ๊ฐœ๋ฐœ์ด ๋ณธ๊ฒฉํ™”๋จ์— ๋”ฐ๋ผ, ๋ฐ˜๋ณต์ ์ธ ์ถฉ๋ฐฉ์ „์ด ๊ฐ€๋Šฅํ•œ ๊ณ ์„ฑ๋Šฅ ์ด์ฐจ์ „์ง€์— ๋Œ€ํ•œ ์—ฐ๊ตฌ๊ฐ€ ํ™œ๋ฐœํžˆ ์ง„ํ–‰๋˜๊ณ  ์žˆ๋‹ค. ํŠนํžˆ ๋ฆฌํŠฌ ์ด์ฐจ์ „์ง€๋Š” ๋‹ˆ์ผˆ ๊ณ„์—ด์˜ ์ด์ฐจ์ „์ง€์— ๋น„ํ•ด ๋ฉ”๋ชจ๋ฆฌ ํšจ๊ณผ๊ฐ€ ๊ฑฐ์˜ ์ผ์–ด๋‚˜์ง€ ์•Š์•„ ์ถฉ๋ฐฉ์ „์ด ์ž์œ ๋กญ๊ณ , ์ž๊ฐ€ ๋ฐฉ์ „์œจ์ด ๋งค์šฐ ๋‚ฎ์œผ๋ฉฐ ์—๋„ˆ์ง€ ๋ฐ€๋„๊ฐ€ ๋†’์€ ์žฅ์ ์œผ๋กœ ๊ฐ๊ด‘์„ ๋ฐ›๊ณ  ์žˆ๋‹ค. In recent years, the demand for portable electronic products such as laptops, video cameras, mobile phones, etc. is rapidly increasing, and development of electric vehicles, energy storage batteries, robots, satellites, and the like is in full swing. There is an active research on. In particular, lithium secondary batteries are in the spotlight for their advantages such as free charge and discharge, very low self-discharge rate, and high energy density compared to nickel-based secondary batteries.

์ด๋Ÿฌํ•œ ๋ฆฌํŠฌ ์ด์ฐจ์ „์ง€๋Š” ์ฃผ๋กœ ๋ฆฌํŠฌ๊ณ„ ์‚ฐํ™”๋ฌผ๊ณผ ํƒ„์†Œ์žฌ๋ฅผ ๊ฐ๊ฐ ์–‘๊ทน ํ™œ๋ฌผ์งˆ๊ณผ ์Œ๊ทน ํ™œ๋ฌผ์งˆ๋กœ ์‚ฌ์šฉํ•œ๋‹ค. ๋ฆฌํŠฌ ์ด์ฐจ์ „์ง€๋Š”, ์ด๋Ÿฌํ•œ ์–‘๊ทน ํ™œ๋ฌผ์งˆ๊ณผ ์Œ๊ทน ํ™œ๋ฌผ์งˆ์ด ๊ฐ๊ฐ ๋„ํฌ๋œ ์–‘๊ทนํŒ๊ณผ ์Œ๊ทนํŒ์ด ์„ธํผ๋ ˆ์ดํ„ฐ๋ฅผ ์‚ฌ์ด์— ๋‘๊ณ  ๋ฐฐ์น˜๋œ ์ „๊ทน ์กฐ๋ฆฝ์ฒด์™€, ์ „๊ทน ์กฐ๋ฆฝ์ฒด๋ฅผ ์ „ํ•ด์•ก๊ณผ ํ•จ๊ป˜ ๋ฐ€๋ด‰ ์ˆ˜๋‚ฉํ•˜๋Š” ์™ธ์žฅ์žฌ, ์ฆ‰ ์ „์ง€ ์ผ€์ด์Šค๋ฅผ ๊ตฌ๋น„ํ•œ๋‹ค.Such lithium secondary batteries mainly use lithium-based oxides and carbon materials as positive electrode active materials and negative electrode active materials, respectively. The lithium secondary battery includes an electrode assembly in which a positive electrode plate and a negative electrode plate coated with such a positive electrode active material and a negative electrode active material are disposed with a separator interposed therebetween, and a packaging material for sealing and storing the electrode assembly together with an electrolyte, that is, a battery case.

์ตœ๊ทผ์—๋Š” ํœด๋Œ€ํ˜• ์ „์ž๊ธฐ๊ธฐ์™€ ๊ฐ™์€ ์†Œํ˜• ์žฅ์น˜๋ฟ ์•„๋‹ˆ๋ผ, ์ž๋™์ฐจ๋‚˜ ์ „๋ ฅ์ €์žฅ์žฅ์น˜์™€ ๊ฐ™์€ ์ค‘๋Œ€ํ˜• ์žฅ์น˜์—๋„ ์ด์ฐจ์ „์ง€๊ฐ€ ๋„๋ฆฌ ์ด์šฉ๋˜๊ณ  ์žˆ๋‹ค. ํŠนํžˆ, ํƒ„์†Œ ์—๋„ˆ์ง€๊ฐ€ ์ ์ฐจ ๊ณ ๊ฐˆ๋˜๊ณ  ํ™˜๊ฒฝ์— ๋Œ€ํ•œ ๊ด€์‹ฌ์ด ๋†’์•„์ง€๋ฉด์„œ, ๋ฏธ๊ตญ, ์œ ๋Ÿฝ, ์ผ๋ณธ, ํ•œ๊ตญ์„ ๋น„๋กฏํ•˜์—ฌ ์ „ ์„ธ๊ณ„์ ์œผ๋กœ ํ•˜์ด๋ธŒ๋ฆฌ๋“œ ์ž๋™์ฐจ์™€ ์ „๊ธฐ ์ž๋™์ฐจ์˜ ์ˆ˜์š”๊ฐ€ ์ฆ๊ฐ€ํ•˜๊ณ  ์žˆ๋‹ค. ์ด๋Ÿฌํ•œ ํ•˜์ด๋ธŒ๋ฆฌ๋“œ ์ž๋™์ฐจ๋‚˜ ์ „๊ธฐ ์ž๋™์ฐจ์— ์žˆ์–ด์„œ ๊ฐ€์žฅ ํ•ต์‹ฌ์  ๋ถ€ํ’ˆ์€ ์ฐจ๋Ÿ‰ ๋ชจํ„ฐ๋กœ ๊ตฌ๋™๋ ฅ์„ ๋ถ€์—ฌํ•˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์ด๋‹ค. ํ•˜์ด๋ธŒ๋ฆฌ๋“œ ์ž๋™์ฐจ๋‚˜ ์ „๊ธฐ ์ž๋™์ฐจ๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ์ถฉ๋ฐฉ์ „์„ ํ†ตํ•ด ์ฐจ๋Ÿ‰์˜ ๊ตฌ๋™๋ ฅ์„ ์–ป์„ ์ˆ˜ ์žˆ๊ธฐ ๋•Œ๋ฌธ์—, ์—”์ง„๋งŒ์„ ์ด์šฉํ•˜๋Š” ์ž๋™์ฐจ์— ๋น„ํ•ด ์—ฐ๋น„๊ฐ€ ๋›ฐ์–ด๋‚˜๊ณ  ๊ณตํ•ด ๋ฌผ์งˆ์„ ๋ฐฐ์ถœํ•˜์ง€ ์•Š๊ฑฐ๋‚˜ ๊ฐ์†Œ์‹œํ‚ฌ ์ˆ˜ ์žˆ๋‹ค๋Š” ์ ์—์„œ ์‚ฌ์šฉ์ž๋“ค์ด ๋Š˜์–ด๋‚˜๊ณ  ์žˆ๋Š” ์‹ค์ •์ด๋‹ค. ๊ทธ๋ฆฌ๊ณ , ์ด๋Ÿฌํ•œ ํ•˜์ด๋ธŒ๋ฆฌ๋“œ ์ž๋™์ฐจ๋‚˜ ์ „๊ธฐ ์ž๋™์ฐจ์˜ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์—๋Š” ๋‹ค์ˆ˜์˜ ์ด์ฐจ์ „์ง€๊ฐ€ ํฌํ•จ๋˜๋ฉฐ, ์ด๋Ÿฌํ•œ ๋‹ค์ˆ˜์˜ ์ด์ฐจ์ „์ง€๋“ค์€ ์„œ๋กœ ์ง๋ ฌ ๋ฐ ๋ณ‘๋ ฌ๋กœ ์—ฐ๊ฒฐ๋จ์œผ๋กœ์จ ์šฉ๋Ÿ‰ ๋ฐ ์ถœ๋ ฅ์„ ํ–ฅ์ƒ์‹œํ‚จ๋‹ค.Recently, secondary batteries are widely used not only in small devices such as portable electronic devices but also in medium and large devices such as automobiles and power storage devices. In particular, as carbon energy is gradually depleted and environmental interest is increasing, demand for hybrid and electric vehicles is increasing worldwide, including in the United States, Europe, Japan, and Korea. The most essential component of such a hybrid or electric vehicle is a battery pack that provides driving power to a vehicle motor. Since hybrid vehicles and electric vehicles can obtain driving power of a vehicle through charging and discharging of battery packs, users are increasing in terms of fuel efficiency and emission or reduction of pollutants compared to engine-only vehicles. In addition, the battery pack of the hybrid vehicle or the electric vehicle includes a plurality of secondary batteries, and the plurality of secondary batteries are connected to each other in series and in parallel to improve capacity and output.

์ด์™€ ๊ฐ™์ด ์ „๊ธฐ ์—๋„ˆ์ง€๋ฅผ ์ด์šฉํ•˜๋Š” ์ž๋™์ฐจ๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ์„ฑ๋Šฅ์— ์˜ํ•ด ์ง์ ‘์ ์ธ ์˜ํ–ฅ์„ ๋ฐ›์œผ๋ฏ€๋กœ, ๊ฐ ์ด์ฐจ์ „์ง€์˜ ์ „์••, ์ „์ฒด ์ด์ฐจ์ „์ง€์˜ ์ „์•• ๋ฐ ์ „๋ฅ˜ ๋“ฑ์„ ์ธก์ •ํ•˜์—ฌ ๊ฐ ์ด์ฐจ์ „์ง€์˜ ์ถฉ๋ฐฉ์ „์„ ํšจ์œจ์ ์œผ๋กœ ๊ด€๋ฆฌํ•  ๋ฟ ์•„๋‹ˆ๋ผ, ๊ฐ ์ด์ฐจ์ „์ง€ ์ค‘ ์„ฑ๋Šฅ์ด ์ €ํ•˜๋˜๊ฑฐ๋‚˜ ๋ฌธ์ œ๊ฐ€ ๋ฐœ์ƒํ•œ ์ด์ฐจ์ „์ง€๋ฅผ ๊ฒ€์ถœํ•˜์—ฌ ์ด์ฐจ์ „์ง€ ๊ฐ๊ฐ์ด ์ตœ๋Œ€ํ•œ ์„ฑ๋Šฅ์„ ๊ฐ€์ง€๋„๋ก ํ•˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ๊ด€๋ฆฌ ์‹œ์Šคํ…œ(Battery Management System, BMS)์„ ์š”๊ตฌํ•˜๊ณ  ์žˆ๋‹ค.Vehicles using electric energy are directly affected by the performance of the battery pack. Therefore, not only the secondary battery is efficiently managed by measuring the voltage of each secondary battery, the voltage and current of the entire secondary battery, etc. In addition, a battery management system (BMS) is required to detect a secondary battery in which a performance decreases or a problem occurs among each secondary battery so that each of the secondary batteries has maximum performance.

ํ•˜์ด๋ธŒ๋ฆฌ๋“œ ์ž๋™์ฐจ๋‚˜ ์ „๊ธฐ ์ž๋™์ฐจ์˜ ๊ฒฝ์šฐ ์‹œ์Šคํ…œ์—์„œ ํ•„์š”ํ•œ ์ถฉ๋ถ„ํ•œ ์—๋„ˆ์ง€๋ฅผ ๊ณต๊ธ‰ํ•˜๊ธฐ ์œ„ํ•˜์—ฌ ๋Œ€์šฉ๋Ÿ‰์˜ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์ด ํƒ‘์žฌ๋˜๋ฉฐ ์ด๊ฒƒ์€ ๊ณ ์ „์••, ๊ณ ์ „๋ฅ˜์˜ ํŠน์„ฑ์ด ์žˆ๋‹ค. ๋”ฐ๋ผ์„œ, ์•ˆ์ „์ด ๊ทธ ๋ฌด์—‡๋ณด๋‹ค ์ค‘์š”ํ•˜๋‹ค. ํŠนํžˆ ๊ณ ์šฉ๋Ÿ‰ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ๊ฒฝ์šฐ ๊ณผ์ถฉ์ „ ๋ฐ ๊ณผ์ „๋ฅ˜์— ์˜ํ•œ ํ™”์žฌ ๋ฐ ํญ๋ฐœ์˜ ์œ„ํ—˜์„ฑ์ด ์žˆ๊ณ , ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์„ ์ œ์–ดํ•˜๋Š” BMS์˜ ๊ณ ์žฅ ๋ฐ ์ด์ƒ ์ž‘๋™์— ์˜ํ•œ ํ™”์žฌ์‹œ ์ฐจ๋Ÿ‰ ๋ฐ ์‹œ์Šคํ…œ ์•ˆ์ „์— ์ƒ๋‹นํ•œ ์œ„ํ—˜์ด ์กด์žฌํ•œ๋‹ค.In the case of hybrid vehicles or electric vehicles, a large battery pack is installed to supply sufficient energy for the system, which is characterized by high voltage and high current. Therefore, safety is paramount. Particularly in the case of a high capacity battery pack, there is a risk of fire and explosion due to overcharge and overcurrent, and there is a significant risk to vehicle and system safety in the event of a fire due to a failure or abnormal operation of the BMS controlling the battery pack.

์ด๋Ÿฌํ•œ ์œ„ํ—˜์„ ์ œ๊ฑฐํ•˜๊ธฐ ์œ„ํ•˜์—ฌ ์ข…๋ž˜์—๋Š” ์˜จ๋„ ์„ผ์„œ ๋ฐ ์ „๋ฅ˜, ์ „์•• ์„ผ์„œ๋ฅผ ์ด์šฉํ•˜์—ฌ ํ™”์žฌ๋ฅผ ๊ฐ์ง€ํ•˜๊ณ , ํ™”์žฌ๋กœ ๊ฐ์ง€๋˜๋ฉด ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ๊ณผ ๋ณ„๋„๋กœ ๋งˆ๋ จ๋œ ์†Œํ™”๊ธฐ๋ฅผ ์ž‘๋™ํ•˜๋„๋ก ํ•˜์˜€๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ์ด๋Ÿฌํ•œ ์ข…๋ž˜์˜ ํ™”์žฌ ๊ฐ์ง€ ๋ฐ ์†Œํ™” ๋ฐฉ๋ฒ•์€, ์˜จ๋„ ์„ผ์„œ ๋ฐ ์ „๋ฅ˜/์ „์•• ์„ผ์„œ ๋“ฑ์„ ๊ตฌ๋น„ํ•˜์—ฌ์•ผ ํ•˜๋ฉฐ ์ด๋Ÿฌํ•œ ์„ผ์„œ๋กœ ํ™”์žฌ๋ฅผ ์ดˆ๊ธฐ์— ์ง„๋‹จํ•˜๊ธฐ์—๋Š” ์ •ํ™•์„ฑ์ด ๊ฒฐ์—ฌ๋˜์–ด ์ฐจ๋Ÿ‰ ๋ฐ ์ธ๋ช…์„ ๋ณดํ˜ธํ•˜์ง€ ๋ชปํ•˜๋Š” ๊ฒฝ์šฐ๊ฐ€ ๋งŽ์•˜์œผ๋ฉฐ, ํŠนํžˆ ์ž๊ธฐ ๋ฐ˜์‘์ด ๋˜๋Š” ์˜์—ญ์—์„œ๋Š” BMS์˜ ์—ญํ• ์ด ๋ฌด์˜๋ฏธํ•˜์—ฌ ์ฐจ๋Ÿ‰ ๋ฐ ์ธ๋ช… ํ”ผํ•ด๊ฐ€ ๋ฐœ์ƒํ•˜๋Š” ๋ฌธ์ œ๊ฐ€ ์žˆ๋‹ค. In order to eliminate this risk, conventionally, a fire is detected by using a temperature sensor, a current and a voltage sensor, and when a fire is detected, a fire extinguisher provided separately from the battery pack is operated. However, such a conventional fire detection and extinguishing method should be equipped with a temperature sensor and a current / voltage sensor, and these sensors often lack the accuracy to diagnose the fire early, and thus often prevent the protection of the vehicle and life. In the reaction zone, the role of the BMS is meaningless, and there is a problem that a vehicle and a life loss occur.

๋ณธ ๋ฐœ๋ช…์€ ์ƒ๊ธฐ์™€ ๊ฐ™์€ ๋ฌธ์ œ์ ์„ ํ•ด๊ฒฐํ•˜๊ธฐ ์œ„ํ•ด ์ฐฝ์•ˆ๋œ ๊ฒƒ์œผ๋กœ์„œ, ๋ณธ ๋ฐœ๋ช…์ด ํ•ด๊ฒฐํ•˜๊ณ ์ž ํ•˜๋Š” ๊ณผ์ œ๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ํ™”์žฌ๋ฅผ ์˜ˆ๋ฐฉํ•  ์ˆ˜ ์žˆ๊ฑฐ๋‚˜, ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์ด ๋ฐœํ™”ํ•˜๋”๋ผ๋„ ํ™”์žฌ๊ฐ€ ํ™•์‚ฐ๋˜๋Š” ๊ฒƒ์„ ๋ฐฉ์ง€ํ•จ์œผ๋กœ์จ ๋ฐœํ™”์‹œ ๋ฐœ์ƒ๋˜๋Š” ์œ„ํ—˜์„ ๊ฐ์†Œ์‹œํ‚ฌ ์ˆ˜ ์žˆ๊ฒŒ ์•ˆ์ „์„ฑ์ด ํ–ฅ์ƒ๋œ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์„ ์ œ๊ณตํ•˜๋Š” ๊ฒƒ์ด๋‹ค. The present invention has been made to solve the above problems, the problem to be solved by the present invention is to prevent the fire of the battery pack, or even if the battery pack ignited by preventing the spread of the fire by preventing the risk of fire when ignition To provide a battery pack with improved safety to reduce.

๋ณธ ๋ฐœ๋ช…์ด ํ•ด๊ฒฐํ•˜๊ณ ์ž ํ•˜๋Š” ๋‹ค๋ฅธ ๊ณผ์ œ๋Š” ์ด๋Ÿฌํ•œ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์„ ์ด์šฉํ•จ์œผ๋กœ์จ ์ „๊ธฐ ์ž๋™์ฐจ ๋“ฑ ์ฐจ๋Ÿ‰์˜ ์‚ฌ๊ณ ๋ฅผ ์˜ˆ๋ฐฉํ•˜๋„๋ก ํ•˜๋Š” ์ œ์–ด ๋ฐฉ๋ฒ•์„ ์ œ๊ณตํ•˜๋Š” ๊ฒƒ์ด๋‹ค.Another object of the present invention is to provide a control method for preventing an accident of a vehicle such as an electric vehicle by using such a battery pack.

์ƒ๊ธฐ์™€ ๊ฐ™์€ ๊ณผ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๊ธฐ ์œ„ํ•œ ๋ณธ ๋ฐœ๋ช…์— ๋”ฐ๋ฅธ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์€ ์–‘๊ทน, ์Œ๊ทน ๋ฐ ์„ธํผ๋ ˆ์ดํ„ฐ๋กœ ๊ตฌ์„ฑ๋˜๋Š” ์ „๊ทน ์กฐ๋ฆฝ์ฒด ๋ฐ ์ƒ๊ธฐ ์ „๊ทน ์กฐ๋ฆฝ์ฒด๋ฅผ ์ˆ˜์šฉํ•˜๋Š” ํŒŒ์šฐ์น˜ํ˜• ์ „์ง€ ์ผ€์ด์Šค๋ฅผ ๊ตฌ๋น„ํ•˜๋Š” ์…€์„ ๋‹จ์ˆ˜ ๋˜๋Š” ๋ณต์ˆ˜๊ฐœ ๊ตฌ๋น„ํ•˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์— ์žˆ์–ด์„œ, ์ƒ๊ธฐ ์…€์€ ๋ชจ๋“ˆ ์ผ€์ด์Šค์— ์˜ํ•ด ์ˆ˜๋‚ฉ ์ ์ธต๋˜๊ณ , ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค๋Š” ๋‚ด๋ถ€ ๋˜๋Š” ์™ธ๋ถ€์— ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋ฅผ ๊ตฌ๋น„ํ•˜์—ฌ, ์ƒ๊ธฐ ์…€์˜ ์Šค์›ฐ๋ง ๋ฐœ์ƒ์‹œ ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๊ฐ€ ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค๋กœ๋ถ€ํ„ฐ ์ž๋™ ๋ฐฐ์ถœ๋˜๋Š” ๊ฒƒ์„ ํŠน์ง•์œผ๋กœ ํ•˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์ด๋‹ค. The battery pack according to the present invention for solving the above problems is a battery pack having a single or a plurality of cells having an electrode assembly consisting of a positive electrode, a negative electrode and a separator and a pouch type battery case for accommodating the electrode assembly. The cell is housed and stacked by a module case, and the module case includes a fire suppressing material or a fire extinguishing agent inside or outside, so that the fire suppressing material or fire extinguishing agent is automatically discharged from the module case when swelling of the cell occurs. It is a battery pack characterized in that.

๋ณธ ๋ฐœ๋ช…์˜ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ ์ผ ๊ตฌ์„ฑ ์˜ˆ์— ์žˆ์–ด์„œ, ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋Š” ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋‚ด๋ถ€ ๋ฒฝ๋ฉด ์ชฝ์— ๋ฉ์–ด๋ฆฌ ์ƒํƒœ์˜ ์†Œํ™” ๋ถ„๋ง๋กœ์„œ ์œ„์น˜ํ•˜๋‹ค๊ฐ€ ์ƒ๊ธฐ ์…€์˜ ์Šค์›ฐ๋ง์— ์˜ํ•ด ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋ฒฝ๋ฉด์ด ๋ฒŒ์–ด์ง์— ๋”ฐ๋ผ ์ƒ๊ธฐ ์…€ ์ชฝ์œผ๋กœ ๋–จ์–ด์ง€๋Š” ๊ฒƒ์ผ ์ˆ˜ ์žˆ๋‹ค.In one embodiment of the battery pack of the present invention, the fire suppressing material or the extinguishing agent is located as a lumped extinguishing powder on the inner wall of the module case and the cell as the module case wall is opened by swelling of the cell. It may be falling to the side.

์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋Š” ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋‚ด๋ถ€์— ๋“ค์–ด์žˆ๋‹ค๊ฐ€ ์ƒ๊ธฐ ์…€์˜ ์Šค์›ฐ๋ง์— ์˜ํ•ด ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค๊ฐ€ ๋ฒŒ์–ด์ง€๊ฑฐ๋‚˜ ํ‹ˆ์ด ์ƒ๊ธฐ๋ฉด ์ƒ๊ธฐ ์…€ ์ชฝ์œผ๋กœ ๋ถ„์‚ฌ๋˜๋Š” ๊ตฌ์กฐ๋„ ๊ฐ€๋Šฅํ•˜๋‹ค.The fire suppressing material or extinguishing agent is contained in the module case and may be sprayed toward the cell when the module case is opened or cracked due to swelling of the cell.

์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋Š” ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋‚ด๋ถ€์˜ ๋นˆ ๊ณต๊ฐ„์— ์œ„์น˜ํ•˜๋„๋ก ํ•จ์ด ๋ฐ”๋žŒ์งํ•˜๋‹ค. ํŠนํžˆ, ์ƒ๊ธฐ ์…€์˜ ์ „๊ทน๋ฆฌ๋“œ๊ฐ€ ์žˆ๋Š” ๋ฉด์— ์œ„์น˜ํ•˜๋„๋ก ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค์˜ ์ƒ๋‹จ๋ถ€์— ์œ„์น˜ํ•˜๋„๋ก ํ•จ์ด ๋ฐ”๋žŒ์งํ•˜๋‹ค.The fire suppressant or extinguishing agent is preferably located in an empty space inside the module case. In particular, it is preferable to position the upper end of the module case so as to be located on the surface of the electrode lead of the cell.

์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋‚ด๋ถ€์˜ ๋นˆ ๊ณต๊ฐ„์„ ํ†ตํ•ด ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋ฅผ ๋ฏธ๋ฆฌ ์ฑ„์›Œ ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค๋ฅผ ์ œ์ž‘ํ•œ ํ›„ ์œ„ ๊ตฌ์กฐ๋กœ ๊ตฌ์„ฑํ•œ๋‹ค๋ฉด ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋ฅผ ๋‘๊ธฐ ์œ„ํ•œ ๋ณ„๋„์˜ ๊ณต๊ฐ„์„ ๋งˆ๋ จํ•  ํ•„์š”๊ฐ€ ์—†์–ด ๊ณต๊ฐ„ ํ™•๋ณด์˜ ์–ด๋ ค์›€์„ ์ค„์ผ ์ˆ˜ ์žˆ๋‹ค. If the module case is made by pre-filling the fire suppression material or the extinguishing agent through the empty space inside the module case, if the above structure is configured, there is no need to provide a separate space for placing the fire suppression material or the extinguishing agent. The difficulty of securing space can be reduced.

๋ณธ ๋ฐœ๋ช…์˜ ๋‹ค๋ฅธ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ ๊ตฌ์„ฑ ์˜ˆ์— ์žˆ์–ด์„œ, ์ƒ๊ธฐ ์…€์˜ ์Šค์›ฐ๋ง์— ์˜ํ•ด ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋ฒฝ๋ฉด์ด ํ‹€์–ด์ง์„ ํŒ๋‹จํ•  ์ˆ˜ ์žˆ๋Š” ์ˆ˜ํ‰ ๊ฐ์ง€ ์„ผ์„œ๋ฅผ ๋” ํฌํ•จํ•˜์—ฌ, ์ƒ๊ธฐ ์ˆ˜ํ‰ ๊ฐ์ง€ ์„ผ์„œ๊ฐ€ ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋ฒฝ๋ฉด์ด ํ‹€์–ด์ง„ ๊ฒƒ์œผ๋กœ ํŒ๋‹จํ•˜๋Š” ๊ฒฝ์šฐ ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๊ฐ€ ์ƒ๊ธฐ ์…€ ์ชฝ์œผ๋กœ ๋ถ„์‚ฌ๋˜๋Š” ๊ฒƒ์ผ ์ˆ˜ ์žˆ๋‹ค.In another example of the battery pack configuration of the present invention, further comprising a horizontal sensor for determining that the module case wall is distorted by the swelling of the cell, the horizontal sensor is determined that the module case wall is twisted If the fire suppression material or extinguishing agent may be injected into the cell.

์ด ๋•Œ, ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ์˜ ๋ฐฐ์ถœ์€ ์ œ์–ด๋ถ€์˜ ์‹ ํ˜ธ์— ์˜ํ•ด ์•ผ๊ธฐ๋  ์ˆ˜ ์žˆ๊ณ , ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋Š” ๋ถ„๋ง ๋˜๋Š” ์•ก์ฒด์ผ ์ˆ˜ ์žˆ๋‹ค.At this time, the discharge of the fire suppressant or extinguishing agent may be caused by a signal from the controller, and the fire suppressor or extinguishing agent may be powder or liquid.

์ƒ๊ธฐ ์ˆ˜ํ‰ ๊ฐ์ง€ ์„ผ์„œ๋Š” ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋ฒฝ๋ฉด์˜ ์ˆ˜ํ‰๋ฉด์„ ํŒ๋‹จํ•œ๋‹ค. ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค๋Š” ์ƒ๊ธฐ ์…€๊ณผ ๋ฐ€์ ‘ํ•˜๊ฒŒ ๋‹ฟ์•„ ์žˆ์œผ๋ฏ€๋กœ ๊ณผ์ถฉ์ „ ์ƒํ™ฉ์ด ์ผ์–ด๋‚  ๋•Œ ์ƒ๊ธฐ ์…€์ด ์Šค์›ฐ๋งํ•˜๋ฉด ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋ฒฝ๋ฉด ๋˜ํ•œ ์˜ˆ๋ฅผ ๋“ค์–ด ๋ฐ˜์› ํ˜•ํƒœ๋กœ ๋ฒŒ์–ด์ง€๊ฒŒ ๋œ๋‹ค. ์ƒ๊ธฐ ์ˆ˜ํ‰ ๊ฐ์ง€ ์„ผ์„œ๋Š” ๋ณต์ˆ˜๊ฐœ๋ฅผ ์ผ์ • ๊ฐ„๊ฒฉ์œผ๋กœ ์„ค์น˜ํ•˜์—ฌ ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋ฒฝ๋ฉด์˜ ํ‹€์–ด์ง์„ ํŒ๋‹จํ•˜๋„๋ก ํ•  ์ˆ˜ ์žˆ๋‹ค.The horizontal sensor determines a horizontal surface of the wall of the module case. Since the module case is in intimate contact with the cell, when the cell swells when an overcharge situation occurs, the module case wall also opens, for example, in a semicircular shape. The horizontal sensor may be installed at a predetermined interval to determine whether the module case wall is distorted.

๋ณธ ๋ฐœ๋ช…์— ๋”ฐ๋ฅธ ์ œ์–ด ๋ฐฉ๋ฒ•์—์„œ๋Š”, ์ƒ๊ธฐ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ BMS์— ํฌํ•จ๋œ MCU์—๋Š” ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋ฒฝ๋ฉด์ด ์ •์ƒ ์ƒํƒœ์˜ ์ˆ˜ํ‰๋ฉด๊ณผ ๋น„๊ตํ•ด ํ‹€์–ด์ง€๊ธฐ๋Š” ํ–ˆ์ง€๋งŒ ํ—ˆ์šฉ ๊ฐ€๋Šฅํ•œ ์ •๋„์ธ ๊ฐ’์ธ ์ œ1 ๊ธฐ์ค€๊ฐ’์ด ์„ค์ •๋˜์–ด ์žˆ๊ณ , ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋ฒฝ๋ฉด์ด ์ •์ƒ ์ƒํƒœ์˜ ์ˆ˜ํ‰๋ฉด๊ณผ ๋น„๊ตํ•ด ์ œ1 ๊ธฐ์ค€๊ฐ’ ์ด์ƒ ํ‹€์–ด์งˆ ๋•Œ ๊ฒฝ๊ณ  ์•Œ๋ฆผ์„ ์ƒ๊ธฐ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ BMS์— ํฌํ•จ๋œ MCU์—๊ฒŒ ์•Œ๋ฆฌ๋ฉฐ, ์ƒ๊ธฐ MCU๋Š” ์…€ ์ „์••์„ ์ธก์ •ํ•˜๋Š” ASIC IC๋ฅผ ํ†ตํ•ด ํ˜„์žฌ ์…€ ์ „์••์„ ์ธก์ •ํ•˜์—ฌ ๊ณผ์ „์••(Over Voltage, OV) ์ƒํƒœ์ธ์ง€๋ฅผ ํŒ๋‹จํ•œ๋‹ค. ์…€ ์ „์••์ด ์ •์ƒ์ผ ๊ฒฝ์šฐ ๊ฒฝ๊ณ (warning) ์‹ ํ˜ธ๋ฅผ ์ˆ˜ ์ดˆ ํ˜น์€ ์ˆ˜ ๋ถ„๊ฐ„ ์œ ์ง€ํ•œ ํ›„ ๋‹ค์‹œ ์ •์ƒ(normal) ์ƒํƒœ๋กœ ๋Œ์•„์˜ค๊ฒŒ ํ•œ๋‹ค. ๋งŒ์•ฝ ์‹ค์ œ๋กœ ๊ณผ์ถฉ์ „(์…€ ์ „์••์ด ๋งŒ์ถฉ์ „ ์ƒํƒœ๊ฐ’๋ณด๋‹ค ๋†’์Œ) ์ƒํƒœ์ผ ๋•Œ์—๋Š” ์ƒ๊ธฐ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ๋ฆด๋ ˆ์ด๋ฅผ ์ฐจ๋‹จ(OFF)(์ฃผํ–‰ ์ค‘์ด๋ผ๋ฉด ์ˆ˜ ์ดˆ ๋‚ด์ง€ ์ˆ˜ ๋ถ„ ํ›„์— ์ฐจ๋‹จ๋จ์„ ์•Œ๋ฆผ)ํ•˜์—ฌ ๋” ์ด์ƒ ์ „๋ฅ˜ ํ๋ฆ„์ด ์—†๋„๋ก ํ•˜์—ฌ ์ถฉ์ „์ด ์•ˆ๋˜๋„๋ก ํ•œ๋‹ค. In the control method according to the present invention, the MCU included in the BMS of the battery pack is set to a first reference value, which is an acceptable value, although the module case wall surface is misaligned with the horizontal plane in a normal state, and the module case wall surface is The warning notification is notified to the MCU included in the BMS of the battery pack when the first reference value is misaligned with the horizontal plane in the normal state, and the MCU measures the current cell voltage through an ASIC IC that measures the cell voltage. , OV) state. If the cell voltage is normal, the warning signal is held for several seconds or several minutes and then returned to normal state. If the battery is actually in an overcharge state (the cell voltage is higher than the full charge state), the relay of the battery pack is turned off (notified after a few seconds to several minutes if the vehicle is running) so that there is no current flow. This should not work.

๋˜ํ•œ, ์ˆ˜ํ‰๋ฉด์ด ์ผ์ • ์‹œ๊ฐ„(์ˆ˜ ๋ถ„ ๋‚ด์ง€ ์ˆ˜ ์‹œ๊ฐ„)์ด ์ง€๋‚˜๋„๋ก ๊ณ„์† ํ‹€์–ด์ง„ ์ƒํƒœ๋ฅผ ์œ ์ง€ํ•  ๋•Œ์—๋Š” ์ƒ๊ธฐ MCU๋ฅผ ํ†ตํ•ด ์ƒ๊ธฐ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์„ ํฌํ•จํ•˜๋Š” ์ž๋™์ฐจ์˜ ECU๋กœ ์•Œ๋ ค ์šด์ „์ž์—๊ฒŒ ์ฐจ๋Ÿ‰ ์ ๊ฒ€ ์กฐ์น˜๋ฅผ ๋ฐ›๋„๋ก ํ•œ๋‹ค. In addition, when the horizontal plane keeps being distorted for a predetermined time (a few minutes to several hours), the MCU is notified to the ECU of the vehicle including the battery pack so that the driver receives a vehicle inspection action.

๋ฟ๋งŒ ์•„๋‹ˆ๋ผ, ์ƒ๊ธฐ MCU์—๋Š” ์ƒ๊ธฐ ์ œ1 ๊ธฐ์ค€๊ฐ’๋ณด๋‹ค ํฌ๋ฉฐ, ์ƒ๊ธฐ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ๋ฆด๋ ˆ์ด๋ฅผ ์ฐจ๋‹จํ•ด์•ผ ํ•˜๋Š” ์ •๋„์˜ ๋น„์ •์ƒ ์ƒํ™ฉ์„ ํŒ๊ฐ€๋ฆ„ํ•˜๋Š” ๊ฐ’์ธ ์ œ2 ๊ธฐ์ค€๊ฐ’์ด ๋” ์„ค์ •๋˜์–ด ์žˆ๊ณ , ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋ฒฝ๋ฉด์ด ์ •์ƒ ์ƒํƒœ์˜ ์ˆ˜ํ‰๋ฉด๊ณผ ๋น„๊ตํ•ด ์ œ2 ๊ธฐ์ค€๊ฐ’ ์ด์ƒ ํ‹€์–ด์งˆ ๋•Œ ๋น„์ •์ƒ ์‹ ํ˜ธ๋ฅผ ์ƒ๊ธฐ MCU ๋ฐ ์ง์ ‘์ ์œผ๋กœ ์ƒ๊ธฐ ECU๋กœ ๋ณด๋‚ด ์ƒ๊ธฐ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ๋ฆด๋ ˆ์ด๋ฅผ ์ฐจ๋‹จ(์ฃผํ–‰ ์ค‘์ด๋ผ๋ฉด ์ˆ˜ ์ดˆ ๋‚ด์ง€ ์ˆ˜ ๋ถ„ ํ›„์— ์ฐจ๋‹จ๋จ์„ ์•Œ๋ฆผ)ํ•˜๊ณ  ์ฐจ๋Ÿ‰ ๋น„์ •์ƒ ์ƒํ™ฉ์„ ์•Œ๋ ค ์šด์ „์ž๊ฐ€ ์ฐจ๋Ÿ‰ ์ •์ฐจํ•˜๊ฒŒ ํ•˜์—ฌ ์‚ฌ๊ณ ๋ฅผ ์˜ˆ๋ฐฉํ•˜๊ฒŒ ํ•  ์ˆ˜ ์žˆ๋‹ค. In addition, the MCU has a second reference value that is larger than the first reference value and is a value for determining an abnormal situation such that the relay of the battery pack should be blocked, and the module case wall surface is compared with a horizontal plane in a normal state. Sends an abnormal signal directly to the MCU and the ECU when the second reference value is misaligned to cut off the relay of the battery pack (notifying that it is blocked after a few seconds or several minutes if the driver is running) and to inform the vehicle abnormality of the driver to stop the vehicle. This can prevent accidents.

๋ณธ ๋ฐœ๋ช…์˜ ๋˜ ๋‹ค๋ฅธ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ ๊ตฌ์„ฑ ์˜ˆ์— ์žˆ์–ด์„œ, ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค๋Š” ๊ฐ ์…€์„ ๋‚ด๋ถ€์— ์ˆ˜๋‚ฉํ•˜๋Š” ๊ตฌ์กฐ์ด๊ณ  ๊ฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ์‚ฌ์ด์— ์ ‘์ฐฉ์ œ๋กœ ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋ฅผ ์œ„์น˜์‹œ์ผœ, ์ƒ๊ธฐ ์…€์˜ ์Šค์›ฐ๋ง์— ์˜ํ•ด ์ ‘์ฐฉ๋ฉด์ด ๋ฒŒ์–ด์ง€๋Š” ๊ฒฝ์šฐ ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๊ฐ€ ํ™•์‚ฐ๋˜๋Š” ๊ฒƒ์ผ ์ˆ˜ ์žˆ๋‹ค.In another battery pack configuration example of the present invention, the module case is a structure for accommodating each cell therein and by placing the fire suppression material or extinguishing agent with an adhesive between each module case, by swelling of the cell When the adhesive surface is open, the fire suppression material or extinguishing agent may be diffused.

์–‡์€ ๋ง‰ ๋˜๋Š” ํ™”์žฌ์‹œ ์ž˜ ๋…น๋Š” ์†Œ์žฌ์˜ ๋ง‰์œผ๋กœ ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋ฅผ ๊ฐ์‹ผ ํ›„ ์ƒ๊ธฐ ์ ‘์ฐฉ์ œ๋ฅผ ํ†ตํ•ด ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ์‚ฌ์ด ๋˜๋Š” ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋‚ด๋ถ€์— ๋ถ€์ฐฉํ•  ์ˆ˜๋„ ์žˆ๋‹ค. ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋‚ด๋ถ€์— ๋ถ€์ฐฉํ•˜๋Š” ๊ฒฝ์šฐ, ๊ณต๊ฐ„์ ์œผ๋กœ ํ™œ์šฉ์ด ์šฉ์ดํ•œ ์…€์˜ ์ƒ๋‹จ๋ถ€์— ์œ„์น˜ํ•˜๋„๋ก ํ•œ๋‹ค. ์ด์™€ ๊ฐ™์ด ์…€์˜ ์ „๊ทน๋ฆฌ๋“œ๊ฐ€ ์žˆ๋Š” ๋ฉด์— ๋ถ€์ฐฉํ•  ๋•Œ ์ „์ฒด ๊ตฌ์กฐ๋ฅผ ํ•ด์น˜์ง€ ์•Š๊ณ  ์ ์šฉ์ด ๊ฐ€๋Šฅํ•˜๋‹ค. The fire suppression material or the extinguishing agent may be wrapped with a thin film or a film of a material that melts well in a fire, and then may be attached between the module cases or inside the module case through the adhesive. When attached to the inside of the module case, it is to be located in the upper end of the cell that is easy to use spatially. Thus, when attached to the surface with the electrode lead of the cell, it is possible to apply without harming the entire structure.

์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋Š” ํƒ„์‚ฐ์นผ์Š˜, ์ œ1 ์ธ์‚ฐ์•”๋ชจ๋Š„ ๋ฐ ํ• ๋กœ๊ฒ ํ™”ํ•ฉ๋ฌผ๋กœ ์ด๋ฃจ์–ด์ง„ ๊ตฐ์œผ๋กœ๋ถ€ํ„ฐ ์„ ํƒ๋˜๋Š” 1์ข…์˜ ๋ฌผ์งˆ์ผ ์ˆ˜ ์žˆ๋‹ค. The fire suppressing substance or extinguishing agent may be one substance selected from the group consisting of calcium carbonate, first ammonium phosphate and a halogen compound.

๋ณธ ๋ฐœ๋ช…์— ๋”ฐ๋ฅด๋ฉด, ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์— ํฌํ•จ๋˜๋Š” ์…€์ด ๊ณผ์ถฉ์ „, ๋น„์ •์ƒ ๋™์ž‘ ๋“ฑ์— ์˜ํ•ด ์Šค์›ฐ๋ง๋˜๋Š” ๊ฒฝ์šฐ์— ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋ฅผ ์ž๋™ ๋ฐฐ์ถœํ•จ์œผ๋กœ์จ, ์ „์ง€์˜ ์ด์ƒ ์ž‘๋™์œผ๋กœ ์ธํ•œ ํ™”์žฌ ๋ฐœ์ƒ์‹œ์— ์‹ ์†ํžˆ ์ง„ํ™”๋˜๋„๋ก ํ•˜๊ณ  ๋ฏธ๋ฆฌ ๋ฐœํ™”๋ฅผ ์˜ˆ๋ฐฉํ•  ์ˆ˜๋„ ์žˆ๋‹ค. ๋ณ„๋„์˜ ๋ถ„์‚ฌ์žฅ์น˜๋‚˜ ์˜จ๋„, ์••๋ ฅ ์„ผ์„œ ๋“ฑ์˜ ์žฅ์น˜๊ฐ€ ์—†์ด๋„ ํšจ๊ณผ์ ์œผ๋กœ ํ™”์žฌ๋ฅผ ์ง„์••ํ•  ์ˆ˜ ์žˆ์œผ๋ฉฐ, ๋˜ํ•œ ๊ฐ„๋‹จํ•˜๋ฉด์„œ๋„ ๊ฒฝ์ œ์ ์œผ๋กœ ํ™”์žฌ ์ง„์••์ด ๊ฐ€๋Šฅํ•˜๋‹ค. According to the present invention, when the cell included in the battery pack is swelled due to overcharge, abnormal operation, etc., it automatically discharges the fire suppression material or the extinguishing agent, so that the fire extinguishes rapidly in the event of a fire due to abnormal operation of the battery and fires in advance It can also be prevented. It is possible to effectively extinguish a fire without a separate injector or a device such as a temperature or pressure sensor, and it is also possible to extinguish a fire simply and economically.

๋ณธ ๋ฐœ๋ช…์— ๋”ฐ๋ฅด๋ฉด ์…€์„ ์ˆ˜์šฉํ•˜๋Š” ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋‚ด๋ถ€๋‚˜ ์™ธ๋ถ€์— ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋ฅผ ์œ„์น˜์‹œ์ผœ ์…€์˜ ์Šค์›ฐ๋ง์‹œ ์ž๋™ ๋ฐฐ์ถœํ•˜๊ฒŒ ํ•˜๋ฏ€๋กœ, ์ ์ ˆํ•œ ํƒ€์ด๋ฐ์— ๋ฐœํ™” ์ง€์ ์œผ๋กœ ์ •ํ™•ํ•˜๊ฒŒ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋ฅผ ๋ถ„์‚ฌํ•  ์ˆ˜ ์žˆ์–ด ์กฐ๊ธฐ์— ํ™”์žฌ๋ฅผ ์ง„์••ํ•  ์ˆ˜ ์žˆ์„ ๋ฟ๋งŒ ์•„๋‹ˆ๋ผ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ ๋‚ด๋ถ€ ๋ชจ๋“ˆ ์ผ€์ด์Šค์˜ ์—ฌ์œ  ๊ณต๊ฐ„์— ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋ฅผ ์„ค์น˜ํ•  ์ˆ˜ ์žˆ์–ด์„œ ์ถ”๊ฐ€์ ์ธ ์ƒ์‚ฐ ๋น„์šฉ์ด ์ ๊ฒŒ ๋“ค๊ณ  ๋ณ„๋„์˜ ์†Œํ™”๊ธฐ ์„ค์น˜ ๊ณต๊ฐ„์ด ํ•„์š”์น˜ ์•Š๋‹ค๋Š” ์ด์ ์ด ์žˆ๋‹ค.According to the present invention, since the fire suppressing material or extinguishing agent is placed inside or outside the module housing accommodating the cell to automatically discharge during swelling of the cell, the fire suppressing material or extinguishing agent can be precisely injected to the ignition point at an appropriate timing. As a result, it is possible to extinguish the fire early and install the fire suppression material or the extinguishing agent in the free space of the module case inside the battery pack, thereby reducing the additional production cost and eliminating the need for a separate fire extinguisher installation space.

๋ณธ ๋ฐœ๋ช…์— ์˜ํ•˜๋ฉด, ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์ด ๋ฐœํ™”๋˜๋Š” ๊ฒƒ์„ ํšจ๊ณผ์ ์ด๊ณ  ์‹ ์†ํ•˜๊ฒŒ ๋ฐฉ์ง€ํ•˜์—ฌ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ์•ˆ์ „์„ฑ์„ ํ–ฅ์ƒ์‹œํ‚ฌ ์ˆ˜ ์žˆ๋‹ค.According to the present invention, it is possible to effectively and quickly prevent the battery pack from igniting, thereby improving the safety of the battery pack.

ํŠนํžˆ, ๋ณธ ๋ฐœ๋ช…์˜ ์ผ ์ธก๋ฉด์— ์˜ํ•˜๋ฉด, ์ฐจ๋Ÿ‰์šฉ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์œผ๋กœ ํ™œ์šฉ์‹œ ์ฐจ๋Ÿ‰ ์ถฉ๋Œ ๋“ฑ์˜ ๊ฒฝ์šฐ๋กœ ์ธํ•ด ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์ด ๋ฐœํ™”๋  ์œ„ํ—˜์„ฑ์ด ๋†’์€ ๊ฒฝ์šฐ์—๋„ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ๋ฐœํ™” ์œ„ํ—˜์„ฑ์„ ํฌ๊ฒŒ ๋‚ฎ์ถœ ์ˆ˜ ์žˆ๋‹ค.In particular, according to an aspect of the present invention, even when the risk of the battery pack is ignited due to the collision of the vehicle when used as a vehicle battery pack, it is possible to significantly lower the risk of ignition of the battery pack.

์ด์ฒ˜๋Ÿผ, ๋ณธ ๋ฐœ๋ช…์— ์˜ํ•˜๋ฉด, ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ๋ฐœํ™”๋ฅผ ์˜ˆ๋ฐฉํ•  ์ˆ˜ ์žˆ์œผ๋ฏ€๋กœ, ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์—์„œ ๋ฐœ์ƒํ•œ ํ™”์žฌ๋กœ ์ธํ•ด ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์ด ํŒŒ์†๋˜๊ฑฐ๋‚˜ ๋‹ค๋ฅธ ์žฅ์น˜๋‚˜ ์žฅ๋น„์— ํ™”์žฌ๊ฐ€ ์˜ฎ๊ฒจ ๋ถ™์–ด ์ถ”๊ฐ€์ ์ธ ์ธ๋ช… ๋ฐ ์žฌ์‚ฐ ํ”ผํ•ด๊ฐ€ ๋ฐœ์ƒํ•˜๋Š” ๊ฒƒ์„ ๋ฐฉ์ง€ํ•  ์ˆ˜ ์žˆ๋‹ค.As described above, according to the present invention, since the ignition of the battery pack can be prevented, it is possible to prevent the battery pack from being damaged or the fire being transferred to another device or equipment due to the fire generated from the battery pack, thereby preventing additional life and property damage. .

๋ฟ๋งŒ ์•„๋‹ˆ๋ผ, ๋ณธ ๋ฐœ๋ช…์— ๋”ฐ๋ฅธ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์„ ์ด์šฉํ•œ ์ œ์–ด ๋ฐฉ๋ฒ•์— ๋”ฐ๋ฅด๋ฉด, ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋ฒฝ๋ฉด์˜ ํ‹€์–ด์ง์„ ํ†ตํ•ด ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋ฅผ ๋ถ„์‚ฌํ•˜๋Š” ๊ฒƒ๊ณผ ๋”๋ถˆ์–ด ๊ณผ์ถฉ์ „ ์ƒํƒœ์ผ ๋•Œ์— ์ถฉ์ „์ด ์•ˆ๋˜๋„๋ก ํ•˜๋ฉฐ, ํ‹€์–ด์ง ์ƒํƒœ๊ฐ€ ์ง€์†๋˜๊ฑฐ๋‚˜ ํ‹€์–ด์ง ์ •๋„๊ฐ€ ์‹ฌํ•  ๋•Œ์—๋Š” ์ƒ๊ธฐ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์„ ํฌํ•จํ•˜๋Š” ์ „์ง€ ์ž๋™์ฐจ ๋“ฑ ์ฐจ๋Ÿ‰์˜ ์šด์ „์ž์—๊ฒŒ ์•Œ๋ ค ์ฐจ๋Ÿ‰ ์ ๊ฒ€ ์กฐ์น˜๋ฅผ ๋ฐ›๋„๋ก ํ•  ์ˆ˜ ์žˆ์œผ๋ฏ€๋กœ, ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ ๋ฐ ์ด๋ฅผ ํฌํ•จํ•˜๋Š” ์ฐจ๋Ÿ‰ ์ด์ƒ์œผ๋กœ ์ธํ•œ ์‚ฌ๊ณ ๋ฅผ ์˜ˆ๋ฐฉํ•˜๋Š” ํšจ๊ณผ๊ฐ€ ์žˆ๋‹ค.In addition, according to the control method using a battery pack according to the present invention, by discharging the fire suppression material or extinguishing agent through the wall of the module case, so as not to be charged when in an overcharged state, When the degree of distortion is severe, it is possible to notify the driver of the vehicle, such as a battery car including the battery pack to receive the vehicle inspection measures, there is an effect of preventing an accident due to the battery pack and the vehicle abnormality including the same.

๋ณธ ๋ช…์„ธ์„œ์— ์ฒจ๋ถ€๋˜๋Š” ๋‹ค์Œ์˜ ๋„๋ฉด๋“ค์€ ๋ณธ ๋ฐœ๋ช…์˜ ๋ฐ”๋žŒ์งํ•œ ์‹ค์‹œ์˜ˆ๋ฅผ ์˜ˆ์‹œํ•˜๋Š” ๊ฒƒ์ด๋ฉฐ, ํ›„์ˆ ํ•˜๋Š” ๋ฐœ๋ช…์˜ ์ƒ์„ธํ•œ ์„ค๋ช…๊ณผ ํ•จ๊ป˜ ๋ณธ ๋ฐœ๋ช…์˜ ๊ธฐ์ˆ ์‚ฌ์ƒ์„ ๋”์šฑ ์ดํ•ด์‹œํ‚ค๋Š” ์—ญํ• ์„ ํ•˜๋Š” ๊ฒƒ์ด๋ฏ€๋กœ, ๋ณธ ๋ฐœ๋ช…์€ ๊ทธ๋Ÿฌํ•œ ๋„๋ฉด์— ๊ธฐ์žฌ๋œ ์‚ฌํ•ญ์—๋งŒ ํ•œ์ •๋˜์–ด ํ•ด์„๋˜์–ด์„œ๋Š” ์•„๋‹ˆ ๋œ๋‹ค.The following drawings attached to this specification are illustrative of preferred embodiments of the present invention, and together with the detailed description of the invention to serve to further understand the technical spirit of the present invention, the present invention is a matter described in such drawings It should not be construed as limited to.

๋„ 1์€ ๋ณธ ๋ฐœ๋ช…์— ๊ตฌ๋น„๋˜๋Š” ํŒŒ์šฐ์น˜ํ˜• ์ „์ง€์˜ ์ผ ์˜ˆ๋ฅผ ๋‚˜ํƒ€๋‚ธ ์‚ฌ์‹œ๋„์ด๋‹ค.1 is a perspective view showing an example of a pouch-type battery provided in the present invention.

๋„ 2๋Š” ๋ณธ ๋ฐœ๋ช…์˜ ์ผ ์‹ค์‹œ์˜ˆ์— ์˜ํ•œ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ๊ตฌ์กฐ๋ฅผ ๋‚˜ํƒ€๋‚ด๋Š” ๊ฐœ๋žต์ ์ธ ๋‹จ๋ฉด๋„์ด๋‹ค.2 is a schematic cross-sectional view showing the structure of a battery pack according to an embodiment of the present invention.

๋„ 3์€ ๋ณธ ๋ฐœ๋ช…์˜ ๋‹ค๋ฅธ ์‹ค์‹œ์˜ˆ์— ์˜ํ•œ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ๊ตฌ์กฐ๋ฅผ ๋‚˜ํƒ€๋‚ด๋Š” ๊ฐœ๋žต์ ์ธ ๋‹จ๋ฉด๋„์ด๋‹ค.3 is a schematic cross-sectional view showing the structure of a battery pack according to another embodiment of the present invention.

๋„ 4๋Š” ๋ณธ ๋ฐœ๋ช…์˜ ๋˜ ๋‹ค๋ฅธ ์‹ค์‹œ์˜ˆ์— ์˜ํ•œ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ๊ตฌ์กฐ๋ฅผ ๋‚˜ํƒ€๋‚ด๋Š” ๊ฐœ๋žต์ ์ธ ๋‹จ๋ฉด๋„์ด๋‹ค. 4 is a schematic cross-sectional view showing a structure of a battery pack according to still another embodiment of the present invention.

๋„ 5๋Š” ๋ณธ ๋ฐœ๋ช…์˜ ๋˜ ๋‹ค๋ฅธ ์‹ค์‹œ์˜ˆ์— ์˜ํ•œ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ๊ตฌ์กฐ๋ฅผ ๋‚˜ํƒ€๋‚ด๋Š” ๊ฐœ๋žต์ ์ธ ๋‹จ๋ฉด๋„์ด๋‹ค. 5 is a schematic cross-sectional view showing the structure of a battery pack according to still another embodiment of the present invention.

๋„ 6์€ ๋ณธ ๋ฐœ๋ช…์— ๋”ฐ๋ฅธ ์ œ์–ด ๋ฐฉ๋ฒ•์„ ์„ค๋ช…ํ•˜๊ธฐ ์œ„ํ•œ ๋ชจ์‹๋„์ด๋‹ค.6 is a schematic view for explaining a control method according to the present invention.

๋„ 7์€ ๋ณธ ๋ฐœ๋ช…์— ๋”ฐ๋ฅธ ์ œ์–ด ๋ฐฉ๋ฒ•์„ ์„ค๋ช…ํ•˜๊ธฐ ์œ„ํ•œ ์ˆœ์„œ๋„์ด๋‹ค.7 is a flowchart illustrating a control method according to the present invention.

๋ณธ ๋ฐœ๋ช…์€ ์ฒจ๋ถ€๋œ ๋„๋ฉด์„ ์ฐธ์กฐํ•˜์—ฌ ๋ณธ ๋ฐœ๋ช…์˜ ๋ฐ”๋žŒ์งํ•œ ์‹ค์‹œ์˜ˆ๋ฅผ ์ƒ์„ธํžˆ ์„ค๋ช…ํ•จ์œผ๋กœ์จ ๋”์šฑ ๋ช…๋ฐฑํ•ด ์งˆ ๊ฒƒ์ด๋‹ค. ์—ฌ๊ธฐ์„œ ์„ค๋ช…๋˜๋Š” ์‹ค์‹œ์˜ˆ๋Š” ๋ฐœ๋ช…์˜ ์ดํ•ด๋ฅผ ๋•๊ธฐ ์œ„ํ•˜์—ฌ ์˜ˆ์‹œ์ ์œผ๋กœ ๋‚˜ํƒ€๋‚ธ ๊ฒƒ์ด๋ฉฐ, ๋ณธ ๋ฐœ๋ช…์€ ์—ฌ๊ธฐ์„œ ์„ค๋ช…๋˜๋Š” ์‹ค์‹œ์˜ˆ์™€ ๋‹ค๋ฅด๊ฒŒ ๋‹ค์–‘ํ•˜๊ฒŒ ๋ณ€ํ˜•๋˜์–ด ์‹ค์‹œ๋  ์ˆ˜ ์žˆ์Œ์ด ์ดํ•ด๋˜์–ด์•ผ ํ•  ๊ฒƒ์ด๋‹ค. ๋˜ํ•œ, ๋ฐœ๋ช…์˜ ์ดํ•ด๋ฅผ ๋•๊ธฐ ์œ„ํ•˜์—ฌ, ์ฒจ๋ถ€๋œ ๋„๋ฉด์€ ์‹ค์ œ ์ถ•์ฒ™๋Œ€๋กœ ๋„์‹œ๋œ ๊ฒƒ์ด ์•„๋‹ˆ๋ผ ์ผ๋ถ€ ๊ตฌ์„ฑ์š”์†Œ์˜ ์น˜์ˆ˜๊ฐ€ ๊ณผ์žฅ๋˜๊ฒŒ ๋„์‹œ๋  ์ˆ˜ ์žˆ๋‹ค. ย The invention will become more apparent by describing the preferred embodiments of the invention in detail with reference to the accompanying drawings. Embodiments described herein are shown by way of example in order to facilitate understanding of the invention, it should be understood that the present invention may be modified in various ways different from the embodiments described herein. In addition, in order to facilitate understanding of the invention, the accompanying drawings may not be drawn to scale, but the dimensions of some components may be exaggerated.

์ดํ•˜, ์ฒจ๋ถ€๋œ ๋„๋ฉด์„ ์ฐธ์กฐํ•˜์—ฌ ๋ณธ ๋ฐœ๋ช…์˜ ๋ฐ”๋žŒ์งํ•œ ์‹ค์‹œ์˜ˆ๋ฅผ ์ƒ์„ธํžˆ ์„ค๋ช…ํ•˜๊ธฐ๋กœ ํ•œ๋‹ค. ์ด์— ์•ž์„œ, ๋ณธ ๋ช…์„ธ์„œ ๋ฐ ์ฒญ๊ตฌ๋ฒ”์œ„์— ์‚ฌ์šฉ๋œ ์šฉ์–ด๋‚˜ ๋‹จ์–ด๋Š” ํ†ต์ƒ์ ์ด๊ฑฐ๋‚˜ ์‚ฌ์ „์ ์ธ ์˜๋ฏธ๋กœ ํ•œ์ •ํ•ด์„œ ํ•ด์„๋˜์–ด์„œ๋Š” ์•„๋‹ˆ๋˜๋ฉฐ, ๋ฐœ๋ช…์ž๋Š” ๊ทธ ์ž์‹ ์˜ ๋ฐœ๋ช…์„ ๊ฐ€์žฅ ์ตœ์„ ์˜ ๋ฐฉ๋ฒ•์œผ๋กœ ์„ค๋ช…ํ•˜๊ธฐ ์œ„ํ•ด ์šฉ์–ด์˜ ๊ฐœ๋…์„ ์ ์ ˆํ•˜๊ฒŒ ์ •์˜ํ•  ์ˆ˜ ์žˆ๋‹ค๋Š” ์›์น™์— ์ž…๊ฐํ•˜์—ฌ ๋ณธ ๋ฐœ๋ช…์˜ ๊ธฐ์ˆ ์  ์‚ฌ์ƒ์— ๋ถ€ํ•ฉํ•˜๋Š” ์˜๋ฏธ์™€ ๊ฐœ๋…์œผ๋กœ ํ•ด์„๋˜์–ด์•ผ๋งŒ ํ•œ๋‹ค.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

๋”ฐ๋ผ์„œ, ๋ณธ ๋ช…์„ธ์„œ์— ๊ธฐ์žฌ๋œ ์‹ค์‹œ์˜ˆ์™€ ๋„๋ฉด์— ๋„์‹œ๋œ ๊ตฌ์„ฑ์€ ๋ณธ ๋ฐœ๋ช…์˜ ๊ฐ€์žฅ ๋ฐ”๋žŒ์งํ•œ ์ผ ์‹ค์‹œ์˜ˆ์— ๋ถˆ๊ณผํ•  ๋ฟ์ด๊ณ  ๋ณธ ๋ฐœ๋ช…์˜ ๊ธฐ์ˆ ์  ์‚ฌ์ƒ์— ๋ชจ๋‘ ๋Œ€๋ณ€ํ•˜๋Š” ๊ฒƒ์€ ์•„๋‹ˆ๋ฏ€๋กœ, ๋ณธ ์ถœ์›์‹œ์ ์— ์žˆ์–ด์„œ ์ด๋“ค์„ ๋Œ€์ฒดํ•  ์ˆ˜ ์žˆ๋Š” ๋‹ค์–‘ํ•œ ๊ท ๋“ฑ๋ฌผ๊ณผ ๋ณ€ํ˜•์˜ˆ๋“ค์ด ์žˆ์„ ์ˆ˜ ์žˆ์Œ์„ ์ดํ•ดํ•˜์—ฌ์•ผ ํ•œ๋‹ค.Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

๋„ 1์€ ๋ณธ ๋ฐœ๋ช…์— ๊ตฌ๋น„๋˜๋Š” ํŒŒ์šฐ์น˜ํ˜• ์…€์˜ ์ผ ์˜ˆ๋ฅผ ๋‚˜ํƒ€๋‚ธ ์‚ฌ์‹œ๋„์ด๋‹ค. ๋„ 1์„ ์ฐธ์กฐํ•˜๋ฉด, ์…€(10)์€ ์ˆ˜์ง€์ธต๊ณผ ๊ธˆ์†์ธต์„ ํฌํ•จํ•˜๋Š” ๋ผ๋ฏธ๋„ค์ดํŠธ ์‹œํŠธ์˜ ์ „์ง€ ์ผ€์ด์Šค(20)์— ์ „๊ทน ์กฐ๋ฆฝ์ฒด(30)๋ฅผ ๋‚ด์žฅํ•œ ์ƒํƒœ์—์„œ ํŒŒ์šฐ์น˜ํ˜• ์ „์ง€ ์ผ€์ด์Šค(20)์˜ ์™ธ์ฃผ๋ฉด์„ ์—ด์œต์ฐฉํ•˜์—ฌ ๋ฐ€๋ด‰ํ•œ ๊ตฌ์กฐ์ด๋‹ค.1 is a perspective view showing an example of a pouch-type cell provided in the present invention. Referring to FIG. 1, the cell 10 is heat-sealed on the outer circumferential surface of the pouch-type battery case 20 in a state in which the electrode assembly 30 is built in the battery case 20 of the laminate sheet including the resin layer and the metal layer. It is a sealed structure.

์ „๊ทน ์กฐ๋ฆฝ์ฒด(30)๋Š” ์–‘๊ทน ๋ฐ ์Œ๊ทน๊ณผ ์ด๋“ค ์‚ฌ์ด์— ๊ฐœ์žฌ๋˜์–ด ๋‘ ์ „๊ทน ์‚ฌ์ด์˜ ๋‹จ๋ฝ์„ ๋ฐฉ์ง€ํ•˜๋Š” ์„ธํผ๋ ˆ์ดํ„ฐ๋ฅผ ํฌํ•จํ•œ๋‹ค. ๊ฐ ์ „๊ทนํŒ์€ ๊ธˆ์† ํฌ์ผ๋กœ ์ด๋ฃจ์–ด์ง€๋Š” ์ง‘์ „์ฒด์— ํ™œ๋ฌผ์งˆ ์Šฌ๋Ÿฌ๋ฆฌ๊ฐ€ ๋„ํฌ๋˜์–ด ์ด๋ฃจ์–ด์ง„๋‹ค. ์ „๊ทนํŒ์—๋Š” ์Šฌ๋Ÿฌ๋ฆฌ๊ฐ€ ๋„ํฌ๋˜์ง€ ์•Š๋Š” ๋ฌด์ง€๋ถ€๊ฐ€ ์กด์žฌํ•œ๋‹ค. ๋ฌด์ง€๋ถ€์—๋Š” ํ•œ ์ „๊ทนํŒ์— ํ†ต์ƒ ํ•˜๋‚˜์”ฉ ์ „๊ทนํƒญ์ด ์„ค์น˜๋œ๋‹ค. ์ „๊ทนํƒญ์€ ์ „๊ทน๋ฆฌ๋“œ(40)์™€ ์šฉ์ ‘๋˜์–ด ์ „์ง€ ์ผ€์ด์Šค(20) ์™ธ๋ถ€๋กœ ์ธ์ถœ๋˜์–ด ์ถฉยท๋ฐฉ์ „์‹œ ์ „๊ทน ์กฐ๋ฆฝ์ฒด(30)์™€ ์™ธ๋ถ€ ํšŒ๋กœ๋ฅผ ์—ฐ๊ฒฐํ•˜๊ธฐ ์œ„ํ•œ ํ†ต๋กœ์˜ ์ผ๋ถ€๋ฅผ ํ˜•์„ฑํ•œ๋‹ค. ์ „๊ทน ์กฐ๋ฆฝ์ฒด(20)์—์„œ ์ „๊ทน๋ฆฌ๋“œ(40)๋Š” ํ•˜๋‚˜๊ฐ€ ์œ„์ชฝ์œผ๋กœ, ๋‹ค๋ฅธ ํ•˜๋‚˜๋Š” ์•„๋ž˜์ชฝ์œผ๋กœ ์ธ์ถœ๋˜๋„๋ก ์–‘๋ฐฉํ–ฅ์œผ๋กœ ํ˜•์„ฑ๋  ์ˆ˜ ์žˆ๊ณ , ๋‘ ๊ฐœ ๋ชจ๋‘ ์œ„์ชฝ์œผ๋กœ ์ธ์ถœ๋˜๋„๋ก ๋‹จ๋ฐฉํ–ฅ์œผ๋กœ ํ˜•์„ฑ๋  ์ˆ˜๋„ ์žˆ๋‹ค. ๋ณธ ์‹ค์‹œ์˜ˆ์—์„œ๋Š” ๋‹จ๋ฐฉํ–ฅ์ธ ๊ฒฝ์šฐ๋ฅผ ์˜ˆ๋กœ ๋“ค์—ˆ๋‹ค.The electrode assembly 30 includes a positive electrode and a negative electrode and a separator interposed therebetween to prevent a short circuit between the two electrodes. Each electrode plate is made by coating an active material slurry on a current collector made of a metal foil. In the electrode plate, there are non-coated portions to which the slurry is not applied. In the uncoated portion, electrode tabs are normally provided one by one on the electrode plate. The electrode tab is welded with the electrode lead 40 to be drawn out of the battery case 20 to form a part of a passage for connecting the electrode assembly 30 and an external circuit during charging and discharging. In the electrode assembly 20, the electrode leads 40 may be formed in both directions so that one is pulled upward and the other is pulled downward, and both may be formed in one direction so as to be pulled upward. In this embodiment, the unidirectional case is taken as an example.

์ „๊ทน ์กฐ๋ฆฝ์ฒด(30)๋Š” ์ „ํ•ด์•ก๊ณผ ํ•จ๊ป˜ ์ „์ง€ ์ผ€์ด์Šค(20)์˜ ๋‚ด๋ถ€์— ๋ฐ€๋ด‰๋˜์–ด ์žˆ๋‹ค. ์…€(10)์€ ์ „์ฒด์ ์œผ๋กœ ํญ ๋Œ€๋น„ ๋‘๊ป˜๊ฐ€ ์–‡์€ ๋Œ€๋žต ์ง์œก๋ฉด์ฒด ๊ตฌ์กฐ์ธ ํŒ์ƒํ˜•์œผ๋กœ ์ด๋ฃจ์–ด์ ธ ์žˆ๋‹ค. ์ „์ง€ ์ผ€์ด์Šค(20)๋Š” ๋‚ด๊ตฌ์„ฑ์ด ์šฐ์ˆ˜ํ•œ ๊ณ ๋ถ„์ž ์ˆ˜์ง€๋กœ ์ด๋ฃจ์–ด์ง„ ์™ธ๋ถ€ ํ”ผ๋ณต์ธต, ์ˆ˜๋ถ„, ๊ณต๊ธฐ ๋“ฑ์— ๋Œ€ํ•ด ์ฐจ๋‹จ์„ฑ์„ ๋ฐœํœ˜ํ•˜๋Š” ๊ธˆ์† ์†Œ์žฌ๋กœ ์ด๋ฃจ์–ด์ง„ ์ฐจ๋‹จ์ธต, ๋ฐ ์—ด์œต์ฐฉ๋  ์ˆ˜ ์žˆ๋Š” ๊ณ ๋ถ„์ž ์ˆ˜์ง€๋กœ ์ด๋ฃจ์–ด์ง„ ๋‚ด๋ถ€ ์‹ค๋ž€ํŠธ์ธต์ด ์ˆœ์ฐจ์ ์œผ๋กœ ์ ์ธต๋˜์–ด ์žˆ๋Š” ๋ผ๋ฏธ๋„ค์ดํŠธ ์‹œํŠธ ๊ตฌ์กฐ๋กœ ๊ตฌ์„ฑ๋˜์–ด ์žˆ๋‹ค. The electrode assembly 30 is sealed inside the battery case 20 together with the electrolyte solution. The cell 10 is generally formed in a plate shape having a substantially rectangular parallelepiped structure having a thin thickness to width. The battery case 20 sequentially stacks an outer coating layer made of a polymer resin having excellent durability, a blocking layer made of a metal material exhibiting barrier properties against moisture, air, and the like, and an inner sealant layer made of a polymer resin that can be heat-sealed. It consists of a laminated sheet structure.

์…€(10)์€ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ ๊ตฌ์„ฑ์‹œ ๊ณ ์ „์•• ๋ฐ ๊ณ ์ „๋ฅ˜๋ฅผ ์ œ๊ณตํ•  ์ˆ˜ ์žˆ๋Š” ์ด์ฐจ์ „์ง€์ด๋ฉด ํŠน๋ณ„ํ•œ ์ œํ•œ์€ ์—†์œผ๋ฉฐ, ๋ฐ”๋žŒ์งํ•˜๊ฒŒ, ์ฒด์ ๋‹น ์—๋„ˆ์ง€ ์ €์žฅ๋Ÿ‰์ด ํฐ ๋ฆฌํŠฌ ์ด์ฐจ์ „์ง€์ผ ์ˆ˜ ์žˆ๋‹ค. The cell 10 is not particularly limited as long as it is a secondary battery capable of providing high voltage and high current when the battery pack is constructed. Preferably, the cell 10 may be a lithium secondary battery having a large amount of energy storage per volume.

๋„ 1์— ๋„์‹œํ•œ ์…€(10)์€ ์—ด์œต์ฐฉ๋œ ์™ธ์ฃผ๋ฉด์ด ์…€(10)๋“ค์„ ๊ฐ๊ฐ ๊ณ ์ •ํ•˜์—ฌ ์ „์ง€์…€ ์ ์ธต์ฒด๋ฅผ ํ˜•์„ฑํ•˜๋Š” ์นดํŠธ๋ฆฌ์ง€๋“ค ์‚ฌ์ด์— ๊ณ ์ •๋˜์–ด ๋ชจ๋“ˆ์ด๋‚˜ ํŒฉ์„ ๊ตฌ์„ฑํ•˜๊ฑฐ๋‚˜ ํ•˜๋‚˜์˜ ๋ชจ๋“ˆ ์ผ€์ด์Šค์— ๊ฐ๊ฐ ์ˆ˜๋‚ฉ๋  ์ˆ˜ ์žˆ๋‹ค. ์ด๋Ÿฌํ•œ ์…€(10)์€ ๋‹จ์ˆ˜ ๋˜๋Š” ๋ณต์ˆ˜๊ฐœ ์ ์ธต๋จ์œผ๋กœ์จ ๋ชจ๋“ˆ์ด๋‚˜ ํŒฉ์„ ๊ตฌ์„ฑํ•  ์ˆ˜๋„ ์žˆ๋‹ค. ๋ณธ ๋ฐœ๋ช…์€ ์ด๋Ÿฌํ•œ ๋ชจ๋“ˆ์„ ๋‹จ์œ„๋ชจ๋“ˆ๋กœ ํฌํ•จํ•˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์ด๋‹ค. ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์€ ์†Œ๋งํ•˜๋Š” ์ถœ๋ ฅ ๋ฐ ์šฉ๋Ÿ‰์— ๋”ฐ๋ผ ๋‹จ์œ„๋ชจ๋“ˆ์„ ์กฐํ•ฉํ•˜์—ฌ ์ œ์กฐ๋  ์ˆ˜ ์žˆ์œผ๋ฉฐ, ์žฅ์ฐฉ ํšจ์œจ์„ฑ, ๊ตฌ์กฐ์  ์•ˆ์ •์„ฑ ๋“ฑ์„ ๊ณ ๋ คํ•  ๋•Œ, ์ „๊ธฐ ์ž๋™์ฐจ, ํ•˜์ด๋ธŒ๋ฆฌ๋“œ ์ „๊ธฐ ์ž๋™์ฐจ, ํ”Œ๋Ÿฌ๊ทธ-์ธ ํ•˜์ด๋ธŒ๋ฆฌ๋“œ ์ „๊ธฐ ์ž๋™์ฐจ, ์ „๋ ฅ์ €์žฅ์žฅ์น˜ ๋“ฑ์˜ ์ „์›์œผ๋กœ ๋ฐ”๋žŒ์งํ•˜๊ฒŒ ์‚ฌ์šฉ๋  ์ˆ˜ ์žˆ์ง€๋งŒ, ์ ์šฉ ๋ฒ”์œ„๊ฐ€ ์ด๋“ค๋งŒ์œผ๋กœ ํ•œ์ •๋˜๋Š” ๊ฒƒ์€ ์•„๋‹ˆ๋‹ค. The cell 10 shown in FIG. 1 has a heat-sealed outer circumferential surface fixed between cartridges fixing the cells 10 to form a battery cell stack so as to form a module or a pack, or to be stored in one module case, respectively. Can be. The cells 10 may be stacked in a single or plural number to form a module or a pack. The present invention is a battery pack including such a module as a unit module. The battery pack can be manufactured by combining the unit modules according to the desired output and capacity, and considering the mounting efficiency and structural stability, power packs such as electric vehicles, hybrid electric vehicles, plug-in hybrid electric vehicles, and power storage devices can be manufactured. Although it may be preferably used, the scope of application is not limited to these.

๋„ 2 ๋‚ด์ง€ ๋„ 5๋Š” ๋ณธ ๋ฐœ๋ช…์˜ ์‹ค์‹œ์˜ˆ์— ์˜ํ•œ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ๋“ค์˜ ๊ตฌ์กฐ๋ฅผ ๋‚˜ํƒ€๋‚ด๋Š” ๊ฐœ๋žต์ ์ธ ๋‹จ๋ฉด๋„๋“ค์ด๋‹ค. 2 to 5 are schematic cross-sectional views showing the structure of the battery packs according to an embodiment of the present invention.

๋„ 2 ๋‚ด์ง€ ๋„ 5๋Š” ๋„ 1์™€ ๊ฐ™์€ ์…€(10)์„ ๋ชจ๋“ˆ ์ผ€์ด์Šค(50)์— ์ˆ˜๋‚ฉํ•˜์—ฌ ์ ์ธตํ•œ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์„ ์ ์ธต ๋ฐฉํ–ฅ์„ ๋”ฐ๋ผ ์ ˆ๋‹จํ•œ ๋ฉด์„ ๋‚˜ํƒ€๋‚ธ ๊ฒƒ์œผ๋กœ, ์˜ˆ๋ฅผ ๋“ค์–ด ๋„ 1์˜ X-X' ๋‹จ๋ฉด์— ๋Œ€์‘๋œ๋‹ค. ๋„ 2 ๋‚ด์ง€ ๋„ 5์—์„œ (a)๋Š” ์ •์ƒ ์ƒํƒœ๋ฅผ, (b)๋Š” ์…€(10)์˜ ์Šค์›ฐ๋ง ์ƒํƒœ๋ฅผ ๋„์‹œํ•œ๋‹ค. 2 to 5 are views showing a cut surface of the battery pack stacked along the stacking direction by storing the cell 10 as shown in FIG. 1 in the module case 50, for example, corresponding to the XX โ€ฒ cross section of FIG. 1. do. 2 to 5, (a) shows a steady state, and (b) shows a swelling state of the cell 10.

๋„ 2 ๋‚ด์ง€ ๋„ 5์—์„œ๋Š” ์…€(10)์ด 2๊ฐœ ๋˜๋Š” 3๊ฐœ ๊ตฌ๋น„๋˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์„ ์„ค๋ช…ํ•˜๊ณ  ์žˆ์œผ๋‚˜, ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ ๋‚ด๋ถ€์— ๊ตฌ๋น„๋˜๋Š” ์…€(10)์˜ ๊ฐœ์ˆ˜ ๋ฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค(50)์˜ ํ˜•ํƒœ๋Š” ๋ณธ ์‹ค์‹œ์˜ˆ์— ํ•œ์ •๋˜์ง€ ์•Š์œผ๋ฉฐ, ๋‹น์—…์ž์˜ ์šฉ๋„๋‚˜ ๋ชฉ์ ์— ๋”ฐ๋ผ ์ž„์˜๋กœ ๊ตฌ๋น„๋  ์ˆ˜ ์žˆ๋‹ค. ์…€(10)์€ ๋‹จ์ˆ˜ ๋˜๋Š” ๋ณต์ˆ˜๊ฐœ ํฌํ•จ์ด ๋  ์ˆ˜ ์žˆ๋‹ค. 2 to 5 illustrate a battery pack including two or three cells 10, the number of cells 10 provided in the battery pack and the shape of the module case 50 are described in this embodiment. It is not limited and may be provided arbitrarily according to the use or the objective of a person skilled in the art. The cell 10 may include a singular or plural number.

๋จผ์ € ๋„ 2์˜ (a)๋ฅผ ์ฐธ์กฐํ•˜๋ฉด, ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ(100)์—์„œ ์…€(10)์€ ๋ชจ๋“ˆ ์ผ€์ด์Šค(50)์— ์˜ํ•ด ์ˆ˜๋‚ฉ ์ ์ธต๋˜๊ณ , ๋ชจ๋“ˆ ์ผ€์ด์Šค(50)๋Š” ๋‚ด๋ถ€์— ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๋ฅผ ๊ตฌ๋น„ํ•˜๊ณ  ์žˆ๋‹ค. (b)์™€ ๊ฐ™์ด ์…€(10)์˜ ์Šค์›ฐ๋ง ๋ฐœ์ƒ์‹œ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๊ฐ€ ๋ชจ๋“ˆ ์ผ€์ด์Šค(50)๋กœ๋ถ€ํ„ฐ ์ž๋™ ๋ฐฐ์ถœ๋œ๋‹ค. First, referring to FIG. 2A, in the battery pack 100, the cells 10 are stacked and stored by the module case 50, and the module case 50 has a fire suppression material or a fire extinguishing agent 60 therein. Equipped with. As shown in (b), when the swelling of the cell 10 occurs, the fire suppressing substance or the extinguishing agent 60 is automatically discharged from the module case 50.

์ด์™€ ๊ฐ™์ด ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ(100) ๋‚ด์—๋Š” ๋‹ค์ˆ˜์˜ ์…€(10)์ด ํฌํ•จ๋˜๋Š”๋ฐ ์…€(10)์ด ๊ณผ์ถฉ์ „, ๋น„์ •์ƒ ๋™์ž‘์— ์˜ํ•ด ์Šค์›ฐ๋ง ํ˜„์ƒ์ด ์ƒ๊ฒจ ์…€(10)์ด ๋ถ€ํ’€์–ด ์˜ค๋ฅธ๋‹ค. ๋ณธ ๋ฐœ๋ช…์—์„œ๋Š” ์˜จ๋„๋‚˜ ์••๋ ฅ ์„ผ์„œ์™€ ๊ฐ™์€ ๊ธฐ์กด์˜ ํ™”์žฌ ๊ฐ์ง€ ์ˆ˜๋‹จ์— ์˜ํ•˜์ง€ ์•Š๊ณ  ์…€(10)์˜ ์Šค์›ฐ๋ง์„ ๊ธฐ์ค€์œผ๋กœ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๊ฐ€ ๋ฐฐ์ถœ๋˜๋Š” ๋ฐ์— ํŠน์ง•์ด ์žˆ๋‹ค. As described above, a plurality of cells 10 are included in the battery pack 100, and the cell 10 swells due to swelling due to overcharging and abnormal operation of the cell 10. In the present invention, the fire suppression material or the extinguishing agent is discharged based on the swelling of the cell 10 without using a conventional fire detection means such as a temperature or a pressure sensor.

๋„ 2์˜ (a)๋ฅผ ์ข€ ๋” ์ž์„ธํžˆ ์‚ดํŽด๋ณด๋ฉด, ์ •์ƒ ์ƒํƒœ์—์„œ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๋Š” ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋‚ด๋ถ€ ๋ฒฝ๋ฉด ์ชฝ์— ๋ฉ์–ด๋ฆฌ ์ƒํƒœ์˜ ์†Œํ™” ๋ถ„๋ง๋กœ์„œ ์œ„์น˜ํ•˜๊ณ  ์žˆ๋‹ค. ์ด์ƒ์ด ๋ฐœ์ƒํ•˜์—ฌ (b)์™€ ๊ฐ™์ด ์Šค์›ฐ๋ง์ด ๋ฐœ์ƒํ•˜๋ฉด ์…€(10)์ด ๋ฒŒ์–ด์ง€๊ณ  ์ด์— ๋”ฐ๋ผ ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋ฒฝ๋ฉด์ด ๋ฒŒ์–ด์ง์— ๋”ฐ๋ผ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๊ฐ€ ์…€(10) ์ชฝ์œผ๋กœ ๋–จ์–ด์ง„๋‹ค.Referring to Figure 2 (a) in more detail, in the normal state the fire suppression material or extinguishing agent 60 is located as a lumped extinguishing powder on the inner wall side of the module case 50. If abnormality occurs and swelling occurs as shown in (b), the cell 10 is opened and thus the fire suppressing material or the extinguishing agent 60 falls toward the cell 10 as the wall of the module case 50 is opened.

์ด์™€ ๊ด€๋ จํ•ด์„œ ์†Œํ™” ์•ฝ์ œ๋ž€ ์†Œํ™” ์ž‘์šฉ, ์ฆ‰ ๋ฐ”๋žŒ์งํ•˜๊ฒŒ๋Š” ํ™”์žฌ ์–ต์ œ ์ž‘์šฉ์„ ํ•˜๊ณ  ๋ฐ/๋˜๋Š” ํ™”์žฌ ๋ฐœ์ƒ์„ ์ €์ง€ํ•˜๊ฑฐ๋‚˜ ๋˜๋Š” ์–ด๋ ต๊ฒŒ ํ•˜๋Š” ๋ฌผ์งˆ ๋˜๋Š” ํ˜ผํ•ฉ ๋ฌผ์งˆ์ด๋‹ค. ์†Œํ™” ์ž‘์šฉ์ด๋ž€ ๋ณธ ๋ฐœ๋ช…๊ณผ ๊ด€๋ จํ•ด์„œ ๋ฐ”๋žŒ์งํ•˜๊ฒŒ, ํ™”์žฌ๋ฅผ ์ €์ง€ํ•˜๋Š” ์ž‘์šฉ, ์ฆ‰ ํ™”์žฌ์˜ ์—ฐ์† ๋˜๋Š” ๋ฐœ์ƒ์„ ์–ต์ œํ•˜๊ฑฐ๋‚˜ ๋˜๋Š” ์•ฝํ™”์‹œํ‚ฌ ์ˆ˜ ์žˆ๋Š” ์ž‘์šฉ์„ ์˜๋ฏธํ•œ๋‹ค. ์†Œํ™” ์•ฝ์ œ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ์˜ ๋ฐ”๋žŒ์งํ•œ ํ•จ์œ  ๋ฌผ์งˆ์˜ ์ฃผ์š” ์˜ˆ๋Š” ํ™”์žฌ๋ฅผ ์ง€์†์‹œํ‚ฌ ์ˆ˜ ์žˆ๋Š” ํ™”ํ•™ ๋ฐ˜์‘ ๋ฌผ์งˆ์„ ํ™”์ (fire source)์—์„œ ์ œ๊ฑฐํ•˜๊ฑฐ๋‚˜, ๋˜๋Š” ๋ฐœํ™”์  ์ดํ•˜๋กœ ๋ƒ‰๊ฐํ•˜๊ฑฐ๋‚˜, ๋˜๋Š” ๋ฐœํ™” ๋˜๋Š” ํ™”์žฌ์˜ ์ง€์†์— ํ•„์š”ํ•œ ํ™”ํ•™ ๋ฐ˜์‘์„ ์–ต์ œํ•˜๋Š” ๋ฌผ์งˆ์ด๋‹ค. ์˜ˆ๋ฅผ ๋“ค์–ด, ์—ด๋ถ„ํ•ด์— ์˜ํ•ด ์ƒ๊ธฐ๋Š” ์ด์‚ฐํ™” ํƒ„์†Œ์˜ ์งˆ์‹ ์ž‘์šฉ์œผ๋กœ ์‚ฐ์†Œ ๊ณต๊ธˆ์›์„ ์ฐจ๋‹จํ•˜์—ฌ ์‚ฐ์†Œ ๋†๋„๋ฅผ 16% ์ •๋„๊นŒ์ง€๋กœ ๋‚ฎ์ถ”์–ด ์—ฐ์†Œ๋ฅผ ์ฐจ๋‹จํ•˜๋Š” ์™ธ์— ๋ถ€์ด‰๋งค ์ž‘์šฉ์— ์˜ํ•ด ์†Œํ™”ํ•˜๋Š” ๋ฌผ์งˆ์ผ ์ˆ˜ ์žˆ๋‹ค. Fire extinguishing agents in this context are substances or mixtures which have an extinguishing action, preferably a fire suppression action and / or prevent or make fire outbreaks. Fire extinguishing action in the context of the present invention preferably means the action of inhibiting fire, that is, an action that can inhibit or weaken the continuation or occurrence of a fire. The main examples of extinguishing agents or their preferred inclusions include the removal of chemical reactants that can sustain a fire from the fire source, cooling to or below the flash point, or the elimination of the chemical reactions necessary to sustain the ignition or fire. It is a substance to suppress. For example, the carbon dioxide may be a material which is extinguished by a subcatalytic action in addition to blocking combustion of oxygen by reducing the oxygen source to about 16% by asphyxiation of carbon dioxide generated by pyrolysis.

๋ณธ ๋ฐœ๋ช…๊ณผ ๊ด€๋ จํ•ด์„œ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋Š” ์ž…์ˆ˜๊ฐ€ ์šฉ์ดํ•˜๊ณ  ์ทจ๊ธ‰์ด ๊ฐ„๋‹จํ•œ ๊ฒƒ์„ ์ด์šฉํ•˜๋Š” ๊ฒƒ์ด ๋ฐ”๋žŒ์งํ•˜๋‹ค. ์ด๊ฒƒ์€ ๋ถ„๋ง ๋˜๋Š” ์•ก์ฒด์ผ ์ˆ˜ ์žˆ๋‹ค. ์—ฌ๊ธฐ์„œ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋Š” ํ™”์žฌ์˜ ๋ฐœ์ƒ ๋˜๋Š” ์ง€์†์— ํ•„์š”ํ•˜๊ฑฐ๋‚˜ ์ด๋ฅผ ์ด‰์ง„ํ•˜๋Š” ํ™”ํ•™ ๋ฐ˜์‘์ œ๋ฅผ ํ™”์žฌ ์˜์—ญ์œผ๋กœ๋ถ€ํ„ฐ ๋ฐ€์–ด๋‚ด๊ฑฐ๋‚˜ ๋˜๋Š” ์ œ๊ฑฐํ•จ์œผ๋กœ์จ, ํ™”์žฌ๋ฅผ ์˜ˆ๋ฐฉํ•˜๊ณ  ๋˜๋Š” ์†Œํ™”ํ•˜๊ธฐ ์œ„ํ•ด ์ ํ•ฉํ•œ ๋ฌผ์งˆ์ด๋‹ค. In the context of the present invention, it is preferable to use a fire suppressant or extinguishing agent that is easy to obtain and simple to handle. It may be a powder or a liquid. The fire suppressant or extinguishing agent herein is a suitable material for preventing or extinguishing a fire by pushing or removing a chemical reactant from the fire zone that is needed or promotes the occurrence or continuation of the fire.

ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๋Š” ์†Œํ™” ํšจ๊ณผ๊ฐ€ ์žˆ๋Š” ๋ฌผ์งˆ์ด๋ฉด ๋ชจ๋‘ ๊ฐ€๋Šฅํ•˜๋‹ค. ์˜ˆ๋ฅผ ๋“ค์–ด, ์ œ1์ข… ์†Œํ™”๋ถ„๋ง์ด๋ผ๊ณ  ์•Œ๋ ค์ง„ ์ค‘ํƒ„์‚ฐ๋‚˜ํŠธ๋ฅจ(NaHCO3)์œผ๋กœ์„œ ์Šคํ…Œ์•„๋ฆฐ์‚ฐ์•„์—ฐ ๋˜๋Š” ๋งˆ๊ทธ๋„ค์Š˜์œผ๋กœ ๋ฐฉ์Šต๊ฐ€๊ณต๋˜์–ด ์žˆ์œผ๋ฉฐ ๋ฐฑ์ƒ‰์œผ๋กœ ์ฐฉ์ƒ‰๋˜์–ด ์žˆ๋Š” ๋ฌผ์งˆ, ์ œ2์ข… ์†Œํ™”๋ถ„๋ง์ด๋ผ๊ณ  ์•Œ๋ ค์ง„ ์ค‘ํƒ„์‚ฐ์นผ๋ฅจ(KHCO3)์œผ๋กœ์„œ ์Šคํ…Œ์•„๋ฆฐ์‚ฐ์•„์—ฐ ๋˜๋Š” ๋งˆ๊ทธ๋„ค์Š˜์œผ๋กœ ๋ฐฉ์Šต๊ฐ€๊ณต๋˜์–ด ์žˆ์œผ๋ฉฐ ์ž์ƒ‰์œผ๋กœ ์ฐฉ์ƒ‰๋˜์–ด ์žˆ๋Š” ๋ฌผ์งˆ, ์ œ3์ข… ์†Œํ™”๋ถ„๋ง์ด๋ผ๊ณ  ์•Œ๋ ค์ง„ ์ œ1 ์ธ์‚ฐ์•”๋ชจ๋Š„(NH4H2PO4)์œผ๋กœ์„œ ์‹ค๋ฆฌ์ฝ˜์˜ค์ผ์— ์˜ํ•ด์„œ ๋ฐฉ์Šต๊ฐ€๊ณต๋˜์–ด ์žˆ์œผ๋ฉฐ ๋‹ดํ™์ƒ‰์œผ๋กœ ์ฐฉ์ƒ‰๋˜์–ด ์žˆ๋Š” ๋ฌผ์งˆ, ์ œ4์ข… ์†Œํ™”๋ถ„๋ง์ด๋ผ๊ณ  ์•Œ๋ ค์ง„ ์š”์†Œ์™€ ํƒ„์‚ฐ์นผ๋ฅจ์ด ํ™”ํ•ฉ๋œ ๋ถ„๋ง ๋“ฑ์„ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ๋‹ค. ๋ณธ ๋ฐœ๋ช…์€ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)์˜ ์ข…๋ฅ˜์— ํ•œ์ •๋˜์ง€ ์•„๋‹ˆํ•˜๋ฉฐ, ํƒ„์‚ฐ์นผ์Š˜(CaCO3), ์ œ1 ์ธ์‚ฐ์•”๋ชจ๋Š„ ๋ฐ ํ• ๋กœ๊ฒ ํ™”ํ•ฉ๋ฌผ๋กœ ์ด๋ฃจ์–ด์ง„ ๊ตฐ์œผ๋กœ๋ถ€ํ„ฐ ์„ ํƒ๋˜๋Š” 1์ข…์˜ ๋ฌผ์งˆ์ผ ์ˆ˜ ์žˆ๋‹ค. ์ด ์ค‘, ํ• ๋กœ๊ฒ ํ™”ํ•ฉ๋ฌผ์€ ์ฆ๋ฐœ์„ฑ ์•กํ™” ์†Œํ™” ๋ฌผ์งˆ์ด๋‹ค. The fire suppressant or extinguishing agent 60 may be any material having a extinguishing effect. For example, the is a moisture-proof processing with zinc stearate or magnesium as a one-jong digestion sodium bicarbonate (NaHCO 3), known as powder and materials which are colored in white, a second kind digestion powder as potassium bicarbonate (KHCO 3), known zinc stearate Or a substance which is moisture-proof processed with magnesium and is colored in purple, a first ammonium phosphate (NH 4 H 2 PO 4 ) known as a third type fire extinguishing powder, which is moisture-proof processed by silicon oil and colored in pink. Powders such as urea known as four types of digestive powders and potassium carbonate can be used. The present invention is not limited to the type of fire suppressant or extinguishing agent 60, and may be one material selected from the group consisting of calcium carbonate (CaCO 3 ), first ammonium phosphate, and a halogen compound. Of these, halogen compounds are evaporative liquefied extinguishing materials.

์ •์ƒ ์ƒํƒœ์—์„œ๋Š” ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๋ฅผ ์œ ์ง€ํ•˜๋ฉด์„œ ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋ฒฝ๋ฉด์ด ๋ฒŒ์–ด์งˆ ๋•Œ์— ์…€(10) ์ชฝ์œผ๋กœ ๋–จ์–ด์งˆ ์ˆ˜ ์žˆ๋„๋ก, ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๋Š” ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋ฒฝ๋ฉด ๋‚ด๋ถ€์— ํฌํ•จ์ด ๋˜๊ฑฐ๋‚˜ ๋ฒฝ๋ฉด ์œ„์— ๊ตฌ๋น„๋˜๋„๋ก ํ•˜๊ณ  ๊ฐ•๋„๊ฐ€ ์•ฝํ•œ ํ•„๋ฆ„ ๋“ฑ์œผ๋กœ ๋ฎ์–ด๋‘์–ด ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋ฒฝ๋ฉด์ด ๋ฒŒ์–ด์งˆ ๋•Œ์— ์ด ํ•„๋ฆ„์ด ํƒˆ๋ฝํ•˜๋ฉด์„œ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๊ฐ€ ์…€(10) ์ชฝ์œผ๋กœ ๋ฐฐ์ถœ๋˜๋„๋ก ๊ตฌ์„ฑํ•  ์ˆ˜ ์žˆ๋‹ค. ๋ฌผ๋ก  ๋‹ค๋ฅธ ์˜ˆ๋„ ๊ฐ€๋Šฅํ•˜๋‹ค. The fire suppressant or extinguishing agent 60 is in the module case 50 wall surface such that the wall of the module case 50 may fall toward the cell 10 when the wall of the module case 50 opens while maintaining the fire suppressant or extinguishing agent 60 under normal conditions. It is included inside or provided on the wall and covered with a film of weak strength so that when the wall of the module case 50 is opened, the film is dropped so that the fire suppressing material or the extinguishing agent 60 is discharged toward the cell 10. Can be configured. Of course, other examples are possible.

์˜ˆ๋ฅผ ๋“ค์–ด, ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๋Š” ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋‚ด๋ถ€์— ๋“ค์–ด์žˆ๋‹ค๊ฐ€ ์…€(10)์˜ ์Šค์›ฐ๋ง์— ์˜ํ•ด ๋ชจ๋“ˆ ์ผ€์ด์Šค(50)๊ฐ€ ๋ฒŒ์–ด์ง€๊ฑฐ๋‚˜ ํ‹ˆ์ด ์ƒ๊ธฐ๋ฉด ์…€(10) ์ชฝ์œผ๋กœ ๋ถ„์‚ฌ๋˜๋Š” ๊ตฌ์กฐ๋„ ๊ฐ€๋Šฅํ•˜๋‹ค. ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๋Š” ๋ถ„๋ง ๋˜๋Š” ์•ก์ฒด์ผ ์ˆ˜ ์žˆ๋‹ค.For example, the fire suppressant or extinguishing agent 60 is contained in the module case 50 and sprayed toward the cell 10 when the module case 50 is opened or cracked due to the swelling of the cell 10. The structure is also possible. The fire suppressant or extinguishing agent 60 may be a powder or a liquid.

๋„ 2์— ๋„์‹œํ•œ ๋ฐ”์™€ ๊ฐ™์ด ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋‚ด๋ถ€์˜ ๋นˆ ๊ณต๊ฐ„์„ ํ†ตํ•ด ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๋ฅผ ๊ตฌ๋น„ํ•˜๊ฑฐ๋‚˜ ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋ฒฝ๋ฉด ๋‚ด๋ถ€์— ํฌํ•จ์ด ๋˜๋„๋ก ๋ฏธ๋ฆฌ ์ฑ„์›Œ ๋ชจ๋“ˆ ์ผ€์ด์Šค(50)๋ฅผ ์ œ์ž‘ํ•œ ํ›„ ์œ„ ๊ตฌ์กฐ๋กœ ๊ตฌ์„ฑํ•œ๋‹ค๋ฉด ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๋ฅผ ๋‘๊ธฐ ์œ„ํ•œ ๋ณ„๋„์˜ ๊ณต๊ฐ„์„ ๋งˆ๋ จํ•  ํ•„์š”๊ฐ€ ์—†์–ด ๊ณต๊ฐ„ ํ™•๋ณด์˜ ์–ด๋ ค์›€์„ ์ค„์ผ ์ˆ˜ ์žˆ๋‹ค.As shown in FIG. 2, the module case 50 is manufactured by pre-filling the fire suppressing material or the extinguishing agent 60 through the empty space inside the module case 50 or by including the inside of the module case 50 wall. If the above structure is configured after the fire suppression material or extinguishing agent (60) do not need to provide a separate space to reduce the difficulty of securing space.

์ด์™€ ๊ฐ™์ด ๋ณธ ๋ฐœ๋ช…์— ๋”ฐ๋ฅด๋ฉด, ์…€(10)์˜ ์Šค์›ฐ๋ง์— ๋”ฐ๋ผ ๋ชจ๋“ˆ ์ผ€์ด์Šค(50)๊ฐ€ ๋ฒŒ์–ด์งˆ ๋•Œ์— ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๊ฐ€ ์ž๋™ ๋ฐฐ์ถœ๋˜๊ฒŒ ํ•จ์œผ๋กœ์จ, ํ™”์žฌ๋ฅผ ์˜ˆ๋ฐฉํ•˜๊ฑฐ๋‚˜ ํ™”์žฌ๊ฐ€ ๋ฐœ์ƒํ•˜๋”๋ผ๋„ ํฌ๊ฒŒ ํ™•์‚ฐ๋˜๋Š” ๊ฒƒ์„ ๋ฐฉ์ง€ํ•  ์ˆ˜ ์žˆ๋‹ค. As described above, according to the present invention, when the module case 50 is opened according to the swelling of the cell 10, the fire suppressing material or the extinguishing agent 60 is automatically discharged, thereby preventing the fire or spreading the fire greatly. Can be prevented.

์ด์™€ ๊ฐ™์ด ๋ณธ ๋ฐœ๋ช…์€ ์ข…๋ž˜ ๋ฆฌํŠฌ ์ด์ฐจ์ „์ง€์˜ ๋ฌธ์ œ์ ์œผ๋กœ ์ง€์ ๋˜์–ด์˜จ ์•ˆ์ „์„ฑ์„ ํš๊ธฐ์ ์œผ๋กœ ๊ฐœ์„ ์‹œํ‚ฌ ์ˆ˜ ์žˆ์œผ๋ฉฐ, ํŠนํžˆ ์ „๊ธฐ ์ž๋™์ฐจ ๋“ฑ์—์„œ ์ด๋Ÿฌํ•œ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ(100) ์‚ฌ์šฉ์‹œ ํƒ์›”ํ•œ ์•ˆ์ „์„ฑ ํ–ฅ์ƒ ํšจ๊ณผ๋ฅผ ๋„๋ชจํ•  ์ˆ˜ ์žˆ๋‹ค.As described above, the present invention can significantly improve safety, which has been pointed out as a problem of the conventional lithium secondary battery, and in particular, can achieve an excellent safety improvement effect when using such a battery pack 100 in an electric vehicle.

๋‹ค์Œ ๋„ 3์˜ (a)๋ฅผ ์ฐธ์กฐํ•˜๋ฉด, ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ(200)์—์„œ๋„ ์…€(10)์€ ๋ชจ๋“ˆ ์ผ€์ด์Šค(50)์— ์˜ํ•ด ์ˆ˜๋‚ฉ ์ ์ธต๋˜๊ณ , ๋ชจ๋“ˆ ์ผ€์ด์Šค(50)๋Š” ๋‚ด๋ถ€์— ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๋ฅผ ๊ตฌ๋น„ํ•˜๊ณ  ์žˆ๋‹ค. ๋ฐ”๋žŒ์งํ•˜๊ฒŒ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๋Š” ๋ถ„์‚ฌ์žฅ์น˜(62)๋ฅผ ๊ฐ€์ง„ ์šฉ๊ธฐ(64)์— ์ˆ˜๋‚ฉ๋˜์–ด ์žˆ๋‹ค. (b)์™€ ๊ฐ™์ด ์…€(10)์˜ ์Šค์›ฐ๋ง ๋ฐœ์ƒ์‹œ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๊ฐ€ ๋ชจ๋“ˆ ์ผ€์ด์Šค(50)๋กœ๋ถ€ํ„ฐ ์ž๋™ ๋ฐฐ์ถœ๋œ๋‹ค. Next, referring to FIG. 3A, the cell 10 is also stacked in the battery pack 200 by the module case 50, and the module case 50 has a fire suppression material or a fire extinguishing agent 60 therein. Equipped with. Preferably the fire suppressant or extinguishing agent 60 is housed in a container 64 with an injector 62. As shown in (b), when the swelling of the cell 10 occurs, the fire suppressing substance or the extinguishing agent 60 is automatically discharged from the module case 50.

๋„ 3์˜ (a)๋ฅผ ์ข€ ๋” ์ž์„ธํžˆ ์‚ดํŽด๋ณด๋ฉด, ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ(200)์€ ์…€์˜ ์Šค์›ฐ๋ง์— ์˜ํ•ด ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋ฒฝ๋ฉด์ด ํ‹€์–ด์ง์„ ํŒ๋‹จํ•  ์ˆ˜ ์žˆ๋Š” ์ˆ˜ํ‰ ๊ฐ์ง€ ์„ผ์„œ(70)๋ฅผ ๋” ํฌํ•จํ•œ๋‹ค. Referring to Figure 3 (a) in more detail, the battery pack 200 further includes a horizontal sensor 70 that can determine that the wall surface of the module case 50 by the swelling of the cell.

์ˆ˜ํ‰ ๊ฐ์ง€ ์„ผ์„œ(70)๋Š” ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋ฒฝ๋ฉด์˜ ์ˆ˜ํ‰๋ฉด์„ ํŒ๋‹จํ•œ๋‹ค. ๋ชจ๋“ˆ ์ผ€์ด์Šค(50)๋Š” ์…€(10)๊ณผ ๋ฐ€์ ‘ํ•˜๊ฒŒ ๋‹ฟ์•„ ์žˆ์œผ๋ฏ€๋กœ ๊ณผ์ถฉ์ „ ์ƒํ™ฉ์ด ์ผ์–ด๋‚  ๋•Œ ์…€(10)์ด ์Šค์›ฐ๋งํ•˜๋ฉด ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋ฒฝ๋ฉด ๋˜ํ•œ ์˜ˆ๋ฅผ ๋“ค์–ด ๋ฐ˜์› ํ˜•ํƒœ๋กœ ๋ฒŒ์–ด์ง€๊ฒŒ ๋œ๋‹ค. ์ˆ˜ํ‰ ๊ฐ์ง€ ์„ผ์„œ(70)๋Š” ๋ณต์ˆ˜๊ฐœ๋ฅผ ์ผ์ • ๊ฐ„๊ฒฉ์œผ๋กœ ์„ค์น˜ํ•˜์—ฌ ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋ฒฝ๋ฉด์˜ ํ‹€์–ด์ง์„ ํŒ๋‹จํ•˜๋„๋ก ํ•  ์ˆ˜ ์žˆ๋‹ค.The horizontal sensor 70 determines the horizontal surface of the wall of the module case 50. Since the module case 50 is in close contact with the cell 10, when the cell 10 swells when an overcharge situation occurs, the wall of the module case 50 also opens, for example, in a semicircular shape. The horizontal sensor 70 may be installed at a predetermined interval so that the wall of the module case 50 may be distorted.

๋„ 3์˜ (a)์™€ ๊ฐ™์€ ์ •์ƒ ์ƒํƒœ์—์„œ๋Š” ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋ฒฝ๋ฉด์ด ํ‹€์–ด์ง€์ง€ ์•Š์œผ๋ฏ€๋กœ ์ˆ˜ํ‰ ๊ฐ์ง€ ์„ผ์„œ(70)๋Š” ์ด์ƒ ์‹ ํ˜ธ๋ฅผ ์ถœ๋ ฅํ•˜์ง€ ์•Š๋Š”๋‹ค. (b)์™€ ๊ฐ™์ด ์Šค์›ฐ๋ง์ด ๋ฐœ์ƒํ•˜๋ฉด ์ˆ˜ํ‰ ๊ฐ์ง€ ์„ผ์„œ(70)๋Š” ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋ฒฝ๋ฉด์ด ํ‹€์–ด์ง„ ๊ฒƒ์œผ๋กœ ํŒ๋‹จํ•˜์—ฌ ์ด์ƒ ์‹ ํ˜ธ๋ฅผ ์ถœ๋ ฅํ•œ๋‹ค. ์ด ์ด์ƒ ์‹ ํ˜ธ๋ฅผ ์ˆ˜์‹ ํ•˜์—ฌ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๋ฅผ ๋ถ„์‚ฌํ•˜๋„๋ก ํ•˜๋Š” ์ œ์–ด๋ถ€(80)๋ฅผ ๊ตฌ์„ฑํ•ด ๋†“์œผ๋ฉด, ์ด๋Ÿฌํ•œ ์Šค์›ฐ๋ง ์ƒํ™ฉ์‹œ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๊ฐ€ ์…€(10) ์ชฝ์œผ๋กœ ๋ถ„์‚ฌ๋œ๋‹ค. ์ฆ‰, ๋ณธ ์‹ค์‹œ์˜ˆ์—์„œ ์ˆ˜ํ‰ ๊ฐ์ง€ ์„ผ์„œ(70)์™€ ์ œ์–ด๋ถ€(80)๋ฅผ ๋” ๊ตฌ๋น„ํ•˜๊ฒŒ ํ•˜๊ณ , ์ œ์–ด๋ถ€(80)๋Š” ์ˆ˜ํ‰ ๊ฐ์ง€ ์„ผ์„œ(70)์— ์˜ํ•ด ์ œ์–ด๋˜๋„๋ก ํ•˜๋ฉด ์‹ ํ˜ธ๋ฅผ ์ƒ์„ฑํ•˜์—ฌ ๋ถ„์‚ฌ์žฅ์น˜(62)์— ์ „์†กํ•  ์ˆ˜ ์žˆ๊ณ , ์ƒ๊ธฐ ์‹ ํ˜ธ๋“ค์€ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๋ฅผ ๋‹ด๊ณ  ์žˆ๋Š” ์šฉ๊ธฐ(64)๋กœ๋ถ€ํ„ฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ์˜ ๋ฐฐ์ถœ์„ ์•ผ๊ธฐํ•  ์ˆ˜ ์žˆ๋‹ค. In the normal state as shown in FIG. 3A, since the wall of the module case 50 is not twisted, the horizontal sensor 70 does not output an abnormal signal. When the swelling occurs as shown in (b), the horizontal sensor 70 determines that the wall of the module case 50 is distorted and outputs an abnormal signal. When the control unit 80 is configured to receive the abnormal signal and inject the fire suppressing substance or the extinguishing agent 60, the fire suppressing substance or the extinguishing agent 60 is sprayed toward the cell 10 in this swelling situation. . That is, in the present embodiment, the horizontal detection sensor 70 and the control unit 80 are further provided, and when the control unit 80 is controlled by the horizontal detection sensor 70, a signal is generated and transmitted to the injection device 62. The signals may cause the release of the fire suppressant or extinguishing agent from the container 64 containing the fire suppressant or extinguishing agent 60.

๋ณธ ์‹ค์‹œ์˜ˆ์—์„œ ๋ถ„์‚ฌ์žฅ์น˜(62) ๋ฐ ์šฉ๊ธฐ(64)์˜ ํ˜•ํƒœ๋Š” ์ผ ์˜ˆ๋กœ ๋“  ๊ฒƒ์ด๋ฉฐ ์…€(10)๊ณผ ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ์‚ฌ์ด์— ์ƒ๊ธฐ๋Š” ๋นˆ ๊ณต๊ฐ„ ์–ด๋””์—๋ผ๋„ ๊ตฌ๋น„์‹œํ‚ฌ ์ˆ˜ ์žˆ์œผ๋ฉด ์–ด๋– ํ•œ ํ˜•ํƒœ๋ผ๋„ ๋ฌด๋ฐฉํ•˜๋‹ค. ๊ทธ๋ฆฌ๊ณ , ์ œ์–ด๋ถ€(80)๋Š” ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋‚ด๋ถ€์— ๊ตฌ๋น„๋  ์ˆ˜๋„ ์žˆ๋‹ค. In the present embodiment, the injection device 62 and the container 64 are only examples, and any form may be provided as long as the injection device 62 and the container 64 can be provided anywhere in the empty space generated between the cell 10 and the module case 50. The controller 80 may be provided inside the module case 50.

ํ•œํŽธ, ์œ„์˜ ์‹ค์‹œ์˜ˆ๋“ค์—์„œ ๋ชจ๋“ˆ ์ผ€์ด์Šค(50)๋Š” ํ”„๋ ˆ์ž„ ํ˜•ํƒœ์˜ ์นดํŠธ๋ฆฌ์ง€์™€ ์ปค๋ฒ„๋ฅผ ํฌํ•จํ•  ์ˆ˜ ์žˆ๋‹ค. ๋‹ค์Œ ์‹ค์‹œ์˜ˆ์—์„œ ๋ชจ๋“ˆ ์ผ€์ด์Šค(50)๋Š” ๊ฐ ์…€(10)์„ ๋‚ด๋ถ€์— ์ˆ˜๋‚ฉํ•˜๋Š” 1:1 ๊ตฌ์กฐ์˜ ์ผ€์ด์Šค์ด๋‹ค.Meanwhile, in the above embodiments, the module case 50 may include a frame cartridge and a cover. In the following embodiment, the module case 50 is a case having a 1: 1 structure for accommodating each cell 10 therein.

๋„ 4์˜ (a)๋ฅผ ์ฐธ์กฐํ•˜๋ฉด, ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ(300)์—์„œ ๋ชจ๋“ˆ ์ผ€์ด์Šค(50)๋Š” ๊ฐ ์…€(10)์„ ๋‚ด๋ถ€์— ์ˆ˜๋‚ฉํ•˜๋Š” ๊ตฌ์กฐ์ด๊ณ  ๊ฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ์‚ฌ์ด์— ์ ‘์ฐฉ์ œ(90)๋กœ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๋ฅผ ์œ„์น˜์‹œํ‚จ๋‹ค. (b)์™€ ๊ฐ™์ด ์…€(10)์˜ ์Šค์›ฐ๋ง์— ์˜ํ•ด ์ ‘์ฐฉ๋ฉด์ด ๋ฒŒ์–ด์ง€๋Š” ๊ฒฝ์šฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๊ฐ€ ํ™•์‚ฐ๋œ๋‹ค. Referring to FIG. 4A, the module case 50 in the battery pack 300 has a structure for accommodating each cell 10 therein and a fire suppressing material with an adhesive 90 between the module cases 50. Or position extinguishing agent 60. When the adhesive surface is opened by the swelling of the cell 10 as shown in (b), the fire suppressing material or the extinguishing agent 60 is diffused.

ํ•œํŽธ, ์ ‘์ฐฉ์ œ(90)๋ฅผ ์ด์šฉํ•˜๋Š” ๊ฒฝ์šฐ๋Š” ๋„ 5์™€ ๊ฐ™์€ ๊ตฌ์กฐ๋„ ๊ฐ€๋Šฅํ•˜๋‹ค. On the other hand, when using the adhesive 90, the structure shown in FIG. 5 is also possible.

๋„ 5์˜ (a)๋ฅผ ์ฐธ์กฐํ•˜๋ฉด, ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ(400)์—์„œ ์–‡์€ ๋ง‰ ๋˜๋Š” ํ™”์žฌ์‹œ ์ž˜ ๋…น๋Š” ์†Œ์žฌ์˜ ๋ง‰(92)์œผ๋กœ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๋ฅผ ๊ฐ์‹ผ ํ›„ ์ ‘์ฐฉ์ œ(90)๋ฅผ ํ†ตํ•ด ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋‚ด๋ถ€์— ๋ถ€์ฐฉํ•  ์ˆ˜ ์žˆ๋‹ค. ๋ฌผ๋ก  ๋„ 4์˜ (a)์—์„œ์™€ ๊ฐ™์ด ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ์‚ฌ์ด์— ๋ถ€์ฐฉํ•  ์ˆ˜๋„ ์žˆ๋‹ค.Referring to FIG. 5A, the battery case 400 wraps a fire suppression material or a fire extinguishing agent 60 with a thin film or a film 92 of a material that melts well in a fire, and then the module case through the adhesive 90. 50 can be attached inside. Of course, as shown in Figure 4 (a) may be attached between the module case (50).

์ด์™€ ๊ฐ™์ด ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋‚ด๋ถ€์— ๋ถ€์ฐฉํ•˜๋Š” ๊ฒฝ์šฐ, ๋„ 2์— ๋„์‹œํ•œ ๋ฐ”์™€๋„ ๊ฐ™์ด, ๊ณต๊ฐ„์ ์œผ๋กœ ํ™œ์šฉ์ด ์šฉ์ดํ•œ ์…€(10)์˜ ์ƒ๋‹จ๋ถ€์— ์œ„์น˜ํ•˜๋„๋ก ํ•œ๋‹ค. ์ด์™€ ๊ฐ™์ด ์…€(10)์˜ ์ „๊ทน๋ฆฌ๋“œ(๋„ 1์˜ 40)๊ฐ€ ์žˆ๋Š” ๋ฉด์— ๋ถ€์ฐฉํ•  ๋•Œ ์ „์ฒด ๊ตฌ์กฐ๋ฅผ ํ•ด์น˜์ง€ ์•Š๊ณ  ์ ์šฉ์ด ๊ฐ€๋Šฅํ•˜๋‹ค. ๋„ 5์˜ (b)์™€ ๊ฐ™์ด ์…€(10)์˜ ์Šค์›ฐ๋ง์— ์˜ํ•ด ์ ‘์ฐฉ๋ฉด์ด ๋ฒŒ์–ด์ง€๋Š” ๊ฒฝ์šฐ, ์–‡์€ ๋ง‰ ๋˜๋Š” ํ™”์žฌ์‹œ ์ž˜ ๋…น๋Š” ์†Œ์žฌ์˜ ๋ง‰(92)์ด ํƒˆ๋ฝํ•˜๊ฑฐ๋‚˜ ๋…น์œผ๋ฉด์„œ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๊ฐ€ ์…€(10) ์ชฝ์œผ๋กœ ๋ฐฐ์ถœ ํ˜น์€ ํ™•์‚ฐ๋œ๋‹ค.In this case, when attached to the inside of the module case 50, as shown in Figure 2, it is to be located in the upper end of the cell 10 is easy to use spatially. Thus, when attached to the surface with the electrode lead (40 in Fig. 1) of the cell 10 can be applied without harming the entire structure. When the adhesive surface is opened by the swelling of the cell 10 as shown in (b) of FIG. 5, the fire suppressing material or the fire extinguishing agent 60 is dropped or melted as a thin film or a film 92 of a material that melts well in a fire. Is discharged or diffused toward the cell 10.

์ด์™€ ๊ฐ™์ด ๋ณธ ๋ฐœ๋ช…์€ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋‚ด๋ถ€ ๋˜๋Š” ์™ธ๋ถ€์— ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋ฅผ ์œ„์น˜์‹œ์ผœ ์…€์ด ์Šค์›ฐ๋ง๋  ๋•Œ์— ์ž๋™์ ์œผ๋กœ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๊ฐ€ ๋ฐฐ์ถœ๋˜๋„๋ก ํ•จ์œผ๋กœ์จ, ํ™”์žฌ๋ฅผ ์˜ˆ๋ฐฉํ•˜๊ณ  ํ™”์žฌ ๋ฐœ์ƒ ์ƒํ™ฉ์ด๋ผ๋„ ์‹ ์†ํžˆ ์ง„์••ํ•  ์ˆ˜ ์žˆ๋„๋ก ํ•˜์—ฌ ๋ฐฐํ„ฐ๋ฆฌ ํญ๋ฐœ ๋“ฑ ์ด์ฐจ์ ์ธ ํ™”์žฌ ํ”ผํ•ด๋ฅผ ์ตœ์†Œํ™”ํ•  ์ˆ˜ ์žˆ๋‹ค. ํŠนํžˆ ์ด๋Ÿฌํ•œ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์ด ํ•˜์ด๋ธŒ๋ฆฌ๋“œ ์ „๊ธฐ ์ž๋™์ฐจ๋‚˜ ์ „๊ธฐ ์ž๋™์ฐจ ๋“ฑ์˜ ์ฐจ๋Ÿ‰์— ์žฅ์ฐฉ๋˜๋Š” ๊ฒฝ์šฐ, ํ™”์žฌ๋กœ๋ถ€ํ„ฐ ์šด์ „์ž ๋ฐ ์ฃผ๋ณ€์ธ์„ ๋ณดํ˜ธํ•˜๋Š” ํšจ๊ณผ๊ฐ€ ํƒ์›”ํ•˜๋‹ค. As such, the present invention places fire suppressing substances or extinguishing agents inside or outside the module case of the battery pack so that the fire suppressing substances or extinguishing agents are automatically discharged when the cell is swelled, thereby preventing fires and It can be used quickly to minimize secondary fire damage such as battery explosion. In particular, when such a battery pack is mounted on a vehicle such as a hybrid electric vehicle or an electric vehicle, the effect of protecting the driver and the surrounding people from fire is excellent.

์ข…๋ž˜๊ธฐ์ˆ ์— ๋”ฐ๋ฅธ ์†Œํ™”์žฅ์น˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์— ํ™”์žฌ ๋ฐœ์ƒ์„ ๊ฐ์ง€ํ•  ์ˆ˜ ์žˆ๋Š” ์˜จ๋„, ์••๋ ฅ ์„ผ์„œ ๋“ฑ์„ ๊ตฌ๋น„ํ•˜๊ณ  ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ ์ฃผ๋ณ€์— ์ƒ๊ธฐ ์„ผ์„œ์™€ ์—ฐ๊ฒฐ๋œ ์†Œํ™”๊ธฐ๋ฅผ ์„ค์น˜ํ•˜์—ฌ ์ƒ๊ธฐ ์„ผ์„œ๋กœ๋ถ€ํ„ฐ ํ™”์žฌ ๋ฐœ์ƒ์ด ๊ฐ์ง€๋˜๋Š” ๊ฒฝ์šฐ์— ์†Œํ™”๊ธฐ๊ฐ€ ์ž‘๋™๋˜์–ด ํ™”์žฌ๋ฅผ ์ง„์••ํ•˜๋„๋ก ๊ตฌ์„ฑ๋˜์–ด ์žˆ๋Š” ๊ฒฝ์šฐ๊ฐ€ ๋Œ€๋ถ€๋ถ„์ด๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ์ข…๋ž˜ ๊ธฐ์ˆ ์— ๋”ฐ๋ฅธ ์†Œํ™”์žฅ์น˜๋Š” ์„ผ์„œ์—์„œ ํ™”์žฌ ๋ฐœ์ƒ์„ ๊ฐ์ง€ํ•˜์ง€ ๋ชปํ•˜๋Š” ๊ฒฝ์šฐ์— ์†Œํ™”๊ธฐ๊ฐ€ ์ž‘๋™๋˜์ง€ ์•Š๋Š” ๋ฌธ์ œ์ ์ด ์žˆ๋‹ค. ๋˜ํ•œ, ์„ผ์„œ๊ฐ€ ์ž‘๋™๋˜์–ด ํ™”์žฌ ๋ฐœ์ƒ์ด ๊ฐ์ง€๋˜๋”๋ผ๋„ ์†Œํ™”๊ธฐ์˜ ๋ถ„์‚ฌ๋ฐฉํ–ฅ์ด ์ •ํ™•ํ•˜์ง€ ์•Š๊ฑฐ๋‚˜ ๋ถ„์‚ฌํƒ€์ด๋ฐ์ด ์ ์ ˆํ•˜์ง€ ์•Š์€ ๊ฒฝ์šฐ์—๋Š” ์™„๋ฒฝํ•œ ํ™”์žฌ ์ง„์••์— ํ•œ๊ณ„๊ฐ€ ์žˆ๋‹ค. ๋˜ํ•œ ์ข…๋ž˜ ๊ธฐ์ˆ ์— ๋”ฐ๋ฅธ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ ํ™”์žฌ๋ฅผ ์ง„์••ํ•˜๊ธฐ ์œ„ํ•œ ์†Œํ™” ์žฅ์น˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ๋‚ด๋ถ€์— ์žฅ์ฐฉํ•  ์ˆ˜ ์—†๊ธฐ ๋•Œ๋ฌธ์— ๋ถ€ํ”ผ๊ฐ€ ์ปค์ง€๋Š” ๋ฌธ์ œ์ ์ด ์žˆ๋‹ค. Fire extinguisher according to the prior art is provided with a temperature, pressure sensor, etc. to detect a fire occurrence in the battery pack and install a fire extinguisher connected to the sensor around the battery pack to operate the fire extinguisher when the fire occurrence is detected from the sensor In most cases, it is configured to extinguish a fire. However, the fire extinguisher according to the prior art has a problem that the fire extinguisher does not operate when the sensor does not detect the occurrence of fire. In addition, even if the sensor is activated to detect the occurrence of a fire, there is a limit to the complete fire extinguishing if the fire direction of the fire extinguisher is not correct or the injection timing is not appropriate. In addition, the fire extinguishing device for extinguishing a battery pack fire according to the prior art has a problem in that it becomes bulky because it cannot be mounted inside the battery pack.

๋ณธ ๋ฐœ๋ช…์—์„œ๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ ์•ˆ์— ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋ฅผ ์œ„์น˜์‹œ์ผœ ์…€์ด ์Šค์›ฐ๋ง๋  ๋•Œ์— ์ž๋™์ ์œผ๋กœ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๊ฐ€ ๋ฐฐ์ถœ๋˜๋„๋ก ํ•จ์œผ๋กœ์จ, ๋ณ„๋„์˜ ํ™”์žฌ ๊ฐ์ง€ ์„ผ์„œ๊ฐ€ ํ•„์š”์—†์ด ์ ์ ˆํ•œ ํƒ€์ด๋ฐ์— ๋ฐœํ™” ์ง€์ ์œผ๋กœ ์ •ํ™•ํ•˜๊ฒŒ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋ฅผ ๋ถ„์‚ฌํ•  ์ˆ˜ ์žˆ์–ด ์กฐ๊ธฐ์— ํ™”์žฌ๋ฅผ ์ง„์••ํ•  ์ˆ˜ ์žˆ์„ ๋ฟ๋งŒ ์•„๋‹ˆ๋ผ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ ๋‚ด๋ถ€์˜ ์—ฌ์œ ๊ณต๊ฐ„์— ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋ฅผ ์„ค์น˜ํ•  ์ˆ˜ ์žˆ์–ด์„œ ์ถ”๊ฐ€์ ์ธ ์ƒ์‚ฐ ๋น„์šฉ์ด ์ ๊ฒŒ ๋“ค๊ณ  ๋ณ„๋„์˜ ์„ค์น˜๊ณต๊ฐ„์ด ํ•„์š”์น˜ ์•Š๋‹ค๋Š” ์ด์ ์ด ์žˆ๋‹ค. ์ด์™€ ๊ฐ™์ด ๋ณธ ๋ฐœ๋ช…์€ ์ด๋Ÿฌํ•œ ์ข…๋ž˜ ๊ธฐ์ˆ ์˜ ์ œ๋ฐ˜ ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•œ๋‹ค. In the present invention, by placing a fire suppressant or extinguishing agent in the battery pack to automatically discharge the fire suppressant or extinguishing agent when the cell is swelled, it is possible to accurately fire the fire at the appropriate timing without the need for a separate fire detection sensor Inhibitors or extinguishing agents can be sprayed to extinguish the fire prematurely, and the fire suppressant or extinguishing agents can be installed in the free space inside the battery pack, reducing the additional production costs and requiring no additional installation space. There is an advantage. As such, the present invention solves these problems of the prior art.

ํ•œํŽธ, ๋„ 3์„ ์ฐธ์กฐํ•˜์—ฌ ์„ค๋ช…ํ•œ ๋ฐ”์™€ ๊ฐ™์€ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ(200)์„ ํƒ‘์žฌํ•œ ์ „๊ธฐ ์ž๋™์ฐจ์˜ ๊ฒฝ์šฐ ์•„๋ž˜์™€ ๊ฐ™์€ ๋ณธ ๋ฐœ๋ช…์— ๋”ฐ๋ฅธ ์ œ์–ด ๋ฐฉ๋ฒ•์„ ํ†ตํ•ด ์ œ์–ดํ•  ์ˆ˜ ์žˆ๋‹ค.Meanwhile, the electric vehicle equipped with the battery pack 200 as described with reference to FIG. 3 may be controlled through the control method according to the present invention as described below.

๋„ 6์€ ๋ณธ ๋ฐœ๋ช…์— ๋”ฐ๋ฅธ ์ œ์–ด ๋ฐฉ๋ฒ•์„ ์„ค๋ช…ํ•˜๊ธฐ ์œ„ํ•œ ๋ชจ์‹๋„์ด๊ณ , ๋„ 7์€ ๋ณธ ๋ฐœ๋ช…์— ๋”ฐ๋ฅธ ์ œ์–ด ๋ฐฉ๋ฒ•์„ ์„ค๋ช…ํ•˜๊ธฐ ์œ„ํ•œ ์ˆœ์„œ๋„์ด๋‹ค.6 is a schematic diagram for explaining a control method according to the present invention, Figure 7 is a flow chart for explaining a control method according to the present invention.

๋„ 3, ๋„ 6 ๋ฐ ๋„ 7์„ ํ•จ๊ป˜ ์ฐธ์กฐํ•˜๋ฉด, ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ(200)์—์„œ ์ˆ˜ํ‰ ๊ฐ์ง€ ์„ผ์„œ(70)๋Š” ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋ฒฝ๋ฉด์˜ ์ˆ˜ํ‰๋ฉด์„ ํŒ๋‹จํ•œ๋‹ค(๋‹จ๊ณ„ s10).3, 6 and 7 together, the horizontal sensor 70 in the battery pack 200 determines the horizontal surface of the wall of the module case 50 (step s10).

๋ฐฐํ„ฐ๋ฆฌ ํŒฉ(200)์˜ BMS(210)์— ํฌํ•จ๋œ MCU(220)์—๋Š” ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋ฒฝ๋ฉด์ด ์ •์ƒ ์ƒํƒœ์˜ ์ˆ˜ํ‰๋ฉด๊ณผ ๋น„๊ตํ•ด ๋ช‡ % ์ด์ƒ ํ‹€์–ด์ง„ ๊ฒƒ์ธ์ง€์— ๋”ฐ๋ผ ๋™์ž‘์„ ๊ฒฐ์ •ํ•  ์ˆ˜ ์žˆ๋„๋ก ์ œ1 ๊ธฐ์ค€๊ฐ’, ์ œ2 ๊ธฐ์ค€๊ฐ’ ๋ฐ ์ œ3 ๊ธฐ์ค€๊ฐ’์ด ๋ฏธ๋ฆฌ ์„ค์ •๋˜์–ด ์žˆ๋‹ค. ์ œ1 ๊ธฐ์ค€๊ฐ’์€ ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋ฒฝ๋ฉด์ด ์ •์ƒ ์ƒํƒœ์˜ ์ˆ˜ํ‰๋ฉด๊ณผ ๋น„๊ตํ•ด ํ‹€์–ด์ง€๊ธฐ๋Š” ํ–ˆ์ง€๋งŒ ํ—ˆ์šฉ ๊ฐ€๋Šฅํ•œ ์ •๋„์ธ ๊ฐ’์œผ๋กœ ์ •ํ•œ๋‹ค. ์ œ2 ๊ธฐ์ค€๊ฐ’์€ ์ œ1 ๊ธฐ์ค€๊ฐ’๋ณด๋‹ค ํฌ๋ฉฐ, ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ(200)์˜ ๋ฆด๋ ˆ์ด(240)๋ฅผ ์ฐจ๋‹จํ•ด์•ผ ํ•˜๋Š” ์ •๋„์˜ ๋น„์ •์ƒ ์ƒํ™ฉ์„ ํŒ๊ฐ€๋ฆ„ํ•˜๋Š” ๊ฐ’์œผ๋กœ ์ •ํ•œ๋‹ค. ์ œ3 ๊ธฐ์ค€๊ฐ’์€ ์ œ2 ๊ธฐ์ค€๊ฐ’๋ณด๋‹ค ํฌ๊ฑฐ๋‚˜ ๊ฐ™์œผ๋ฉฐ, ๋น„์ •์ƒ ์ƒํ™ฉ์ผ ๋ฟ๋งŒ ์•„๋‹ˆ๋ผ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๋ฅผ ๋ถ„์‚ฌํ•˜์—ฌ์•ผ ํ•˜๋Š” ์ •๋„์ธ ๊ฐ’์œผ๋กœ ์ •ํ•œ๋‹ค. ์ด๋Ÿฌํ•œ ์ œ1 ๋‚ด์ง€ ์ œ3 ๊ธฐ์ค€๊ฐ’์€ ์…€(10) ๋˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ(200)์˜ ์ข…๋ฅ˜์— ๋”ฐ๋ผ ๋‹ค๋ฅผ ์ˆ˜ ์žˆ์œผ๋ฏ€๋กœ ์‚ฌ์šฉ์ž ์„ค์ •์— ๋”ฐ๋ผ ์กฐ์ •์ด ๊ฐ€๋Šฅํ•˜๋‹ค. ๋ณธ ์‹ค์‹œ์˜ˆ์—์„œ๋Š” ์ œ1 ๊ธฐ์ค€๊ฐ’์ด 15%์ด๊ณ , ์ œ2 ๊ธฐ์ค€๊ฐ’์ด 50%์ด๋ฉฐ, ์ œ3 ๊ธฐ์ค€๊ฐ’์ด 60%์ธ ๊ฒฝ์šฐ๋ฅผ ์˜ˆ๋กœ ๋“ค์–ด ์„ค๋ช…ํ•œ๋‹ค.The MCU 220 included in the BMS 210 of the battery pack 200 includes a first reference value, a second reference value, and a first reference value and a second reference value to determine an operation according to how many percent of the wall of the module case 50 is misaligned with the horizontal plane in a normal state. The third reference value is set in advance. The first reference value is set to a value that is acceptable, although the wall surface of the module case 50 is distorted compared to the horizontal plane in the normal state. The second reference value is greater than the first reference value and is determined as a value for determining an abnormal situation in which the relay 240 of the battery pack 200 should be blocked. The third reference value is greater than or equal to the second reference value, and is determined as a value that is not only an abnormal situation but also the degree to which the fire suppressing substance or the extinguishing agent 60 should be injected. Since the first to third reference values may vary according to the type of the cell 10 or the battery pack 200, the first to third reference values may be adjusted according to a user setting. In this embodiment, a case where the first reference value is 15%, the second reference value is 50%, and the third reference value is 60% will be described as an example.

๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋ฒฝ๋ฉด์ด ์ •์ƒ ์ƒํƒœ์˜ ์ˆ˜ํ‰๋ฉด๊ณผ ๋น„๊ตํ•ด ์ œ1 ๊ธฐ์ค€๊ฐ’, ๋ณธ ์‹ค์‹œ์˜ˆ์—์„œ๋Š” 15% ์ด์ƒ ํ‹€์–ด์งˆ ๋•Œ(๋‹จ๊ณ„ s10์˜ YES), ๊ทธ๋Ÿฌ๋‚˜ ์ œ2 ๊ธฐ์ค€๊ฐ’, ๋ณธ ์‹ค์‹œ์˜ˆ์—์„œ๋Š” 50% ๋ฏธ๋งŒ์œผ๋กœ ํ‹€์–ด์ง„ ๊ฒฝ์šฐ(๋‹จ๊ณ„ s20์˜ NO) ๊ฒฝ๊ณ  ์•Œ๋ฆผ์„ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ(200)์˜ BMS(210)์— ํฌํ•จ๋œ MCU(220)์—๊ฒŒ ์•Œ๋ฆฐ๋‹ค(๋‹จ๊ณ„ s30). ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋ฒฝ๋ฉด์ด ์ •์ƒ ์ƒํƒœ์˜ ์ˆ˜ํ‰๋ฉด๊ณผ ๋น„๊ตํ•ด ์ œ1 ๊ธฐ์ค€๊ฐ’, ๋ณธ ์‹ค์‹œ์˜ˆ์—์„œ๋Š” 15% ์ด์ƒ ํ‹€์–ด์ง€์ง€ ์•Š์€ ๊ฒฝ์šฐ(๋‹จ๊ณ„ s10์˜ NO)๋Š” ๋‹ค์‹œ ๋‹จ๊ณ„ s10์„ ์ˆ˜ํ–‰ํ•œ๋‹ค. ์ผ์ • ์ฃผ๊ธฐ๋ฅผ ๊ฐ€์ง€๊ณ  ์ด ๋™์ž‘์„ ๋ฐ˜๋ณตํ•˜๋„๋ก ํ•œ๋‹ค.When the wall surface of the module case 50 is misaligned with the first reference value, 15% or more in the present embodiment (YES in step s10) compared with the horizontal plane in the normal state, but the second reference value, is less than 50% in the present embodiment ( The NO) warning notification of step s20 is notified to the MCU 220 included in the BMS 210 of the battery pack 200 (step s30). If the wall surface of the module case 50 is not misaligned by more than 15% in the first reference value, in this embodiment, in comparison with the horizontal plane in the normal state (NO in step s10), step s10 is performed again. Repeat this operation at regular intervals.

๋‹จ๊ณ„ s30์—์„œ ๊ฒฝ๊ณ  ์•Œ๋ฆผ์„ ๋ฐ›์€ MCU(220)๋Š” ์…€(10) ์ „์••์„ ์ธก์ •ํ•˜๋Š” ASIC IC(230)๋ฅผ ํ†ตํ•ด ํ˜„์žฌ ์…€ ์ „์••์„ ์ธก์ •ํ•˜์—ฌ ๊ณผ์ „์••(Over Voltage, OV) ์ƒํƒœ์ธ์ง€๋ฅผ ํŒ๋‹จํ•œ๋‹ค(๋‹จ๊ณ„ s40).The MCU 220 receiving the warning notification in step s30 measures the current cell voltage through the ASIC IC 230 measuring the cell 10 voltage, and determines whether it is in an overvoltage (OV) state (step s40).

์…€ ์ „์••์ด ์ •์ƒ์ผ ๊ฒฝ์šฐ(๋‹จ๊ณ„ s40์˜ YES) ๊ฒฝ๊ณ (warning) ์‹ ํ˜ธ๋ฅผ ์ˆ˜ ์ดˆ ํ˜น์€ ์ˆ˜ ๋ถ„๊ฐ„ ์œ ์ง€ํ•œ ํ›„ ๋‹ค์‹œ ์ •์ƒ(normal) ์ƒํƒœ๋กœ ๋Œ์•„์˜ค๊ฒŒ ํ•œ๋‹ค(๋‹จ๊ณ„ s50).If the cell voltage is normal (YES in step s40), the warning signal is maintained for several seconds or minutes and then returned to the normal state (step s50).

๋˜ํ•œ, ์ˆ˜ํ‰๋ฉด์ด ์ผ์ • ์‹œ๊ฐ„(์ˆ˜ ๋ถ„ ๋‚ด์ง€ ์ˆ˜ ์‹œ๊ฐ„)์ด ์ง€๋‚˜๋„๋ก ๊ณ„์† ํ‹€์–ด์ง„ ์ƒํƒœ๋ฅผ ์œ ์ง€ํ•  ๋•Œ์—๋Š”, ๋‹ค์‹œ ๋งํ•ด ๋‹จ๊ณ„ s70์—์„œ์˜ ํŒ๋‹จ์„ ํ†ตํ•ด YES์ธ ๊ฒฝ์šฐ, MCU(220)๋ฅผ ํ†ตํ•ด ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ(200)์„ ํฌํ•จํ•˜๋Š” ์ž๋™์ฐจ(250)์˜ ECU(260)๋กœ ์•Œ๋ ค ์šด์ „์ž์—๊ฒŒ ์ฐจ๋Ÿ‰ ์ ๊ฒ€ ์กฐ์น˜๋ฅผ ๋ฐ›๋„๋ก ํ•œ๋‹ค(๋‹จ๊ณ„ s80). In addition, when the horizontal plane remains in a state where the predetermined time (a few minutes to several hours) continues to be in other words, that is, if it is YES based on the determination in step s70, the battery pack 200 is included through the MCU 220. The ECU 260 of the vehicle 250 is notified to allow the driver to receive a vehicle inspection action (step s80).

๋งŒ์•ฝ ์…€ ์ „์••์ด ๋น„์ •์ƒ, ์ฆ‰ ์‹ค์ œ๋กœ ๊ณผ์ถฉ์ „(์…€ ์ „์••์ด ๋งŒ์ถฉ์ „ ์ƒํƒœ๊ฐ’๋ณด๋‹ค ๋†’์Œ) ์ƒํƒœ์ผ ๋•Œ์—๋Š”(๋‹จ๊ณ„ s40์˜ NO) ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ(200)์˜ ๋ฆด๋ ˆ์ด(240)๋ฅผ ์ฐจ๋‹จ(OFF)(์ฃผํ–‰ ์ค‘์ด๋ผ๋ฉด ์ˆ˜ ์ดˆ ๋‚ด์ง€ ์ˆ˜ ๋ถ„ ํ›„์— ์ฐจ๋‹จ๋จ์„ ์•Œ๋ฆผ)ํ•˜์—ฌ ๋” ์ด์ƒ ์ „๋ฅ˜ ํ๋ฆ„์ด ์—†๋„๋ก ํ•˜์—ฌ ์ถฉ์ „์ด ์•ˆ๋˜๋„๋ก ํ•œ๋‹ค(๋‹จ๊ณ„ s60). ๊ทธ๋ฆฌ๊ณ , ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ(200)์„ ํฌํ•จํ•˜๋Š” ์ž๋™์ฐจ(250)์˜ ECU(260)๋กœ ์•Œ๋ ค ์šด์ „์ž์—๊ฒŒ ์ฐจ๋Ÿ‰ ์ ๊ฒ€ ์กฐ์น˜๋ฅผ ๋ฐ›๋„๋ก ํ•œ๋‹ค(๋‹จ๊ณ„ s80).If the cell voltage is abnormal, that is, actually in an overcharge state (the cell voltage is higher than the full charge state value) (NO in step s40), the relay 240 of the battery pack 200 is turned off (if running) for several seconds. To shut off after a few minutes) so that there is no current flow to prevent charging (step s60). Then, the ECU 260 of the vehicle 250 including the battery pack 200 is notified to allow the driver to receive a vehicle inspection action (step s80).

๋ฟ๋งŒ ์•„๋‹ˆ๋ผ, ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋ฒฝ๋ฉด์ด ์ •์ƒ ์ƒํƒœ์˜ ์ˆ˜ํ‰๋ฉด๊ณผ ๋น„๊ตํ•ด ์ œ2 ๊ธฐ์ค€๊ฐ’, ๋ณธ ์‹ค์‹œ์˜ˆ์—์„œ๋Š” 50% ์ด์ƒ ํ‹€์–ด์งˆ ๋•Œ, ์ฆ‰ ๋‹จ๊ณ„ s20์—์„œ์˜ ํŒ๋‹จ๊ฐ’์ด YES์ธ ๊ฒฝ์šฐ, ๋น„์ •์ƒ ์‹ ํ˜ธ๋ฅผ MCU(220) ๋ฐ ์ง์ ‘์ ์œผ๋กœ ECU(260)๋กœ ๋ณด๋‚ด ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ(200)์˜ ๋ฆด๋ ˆ์ด(240)๋ฅผ ์ฐจ๋‹จ(์ฃผํ–‰ ์ค‘์ด๋ผ๋ฉด ์ˆ˜ ์ดˆ ๋‚ด์ง€ ์ˆ˜ ๋ถ„ ํ›„์— ์ฐจ๋‹จ๋จ์„ ์•Œ๋ฆผ)ํ•˜๊ณ  ์ฐจ๋Ÿ‰ ๋น„์ •์ƒ ์ƒํ™ฉ์„ ์•Œ๋ ค ์šด์ „์ž๊ฐ€ ์ฐจ๋Ÿ‰ ์ •์ฐจํ•˜๊ฒŒ ํ•˜์—ฌ ์‚ฌ๊ณ ๋ฅผ ์˜ˆ๋ฐฉํ•˜๊ฒŒ ํ•  ์ˆ˜ ์žˆ๋‹ค.In addition, when the wall of the module case 50 is different from the horizontal plane in the normal state, when the second reference value, in this embodiment, is changed by 50% or more, that is, when the determined value in step s20 is YES, the MCU 220 outputs an abnormal signal. And directly send to the ECU 260 to block the relay 240 of the battery pack 200 (notifying that it is blocked after a few seconds to several minutes if running) and to inform the vehicle abnormal situation to prevent the driver from stopping the vehicle. It can be done.

์ƒ๊ธฐ ๋น„์ •์ƒ ์‹ ํ˜ธ๋ฅผ ๋ณด๋‚ด๋Š” ๊ฒƒ๊ณผ ๋™์‹œ์—, ๋˜๋Š” ๋ชจ๋“ˆ ์ผ€์ด์Šค(50) ๋ฒฝ๋ฉด์ด ์ •์ƒ ์ƒํƒœ์˜ ์ˆ˜ํ‰๋ฉด๊ณผ ๋น„๊ตํ•ด ์ œ2 ๊ธฐ์ค€๊ฐ’, ๋ณธ ์‹ค์‹œ์˜ˆ์—์„œ๋Š” 50%๋ณด๋‹ค ๋” ๋†’์€ ์ œ3 ๊ธฐ์ค€๊ฐ’, ๋ณธ ์‹ค์‹œ์˜ˆ์—์„œ๋Š” 60% ์ด์ƒ ๋ฒŒ์–ด์ง์„ ํŒ๋‹จํ•˜์˜€์„ ๋•Œ์—, ์ œ์–ด๋ถ€(80)๋ฅผ ํ†ตํ•ด ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(60)๋ฅผ ๋ถ„์‚ฌํ•˜๊ฒŒ ํ•˜๋Š” ๋™์ž‘์„ ๊ตฌํ˜„ํ•˜๋Š” ๋“ฑ์˜ ๋ฐฉ๋ฒ•์œผ๋กœ ํ™”์žฌ๋ฅผ ์กฐ๊ธฐ์— ์ง„์••ํ•˜๋„๋ก ํ•˜๊ฒŒ ํ•  ์ˆ˜๋„ ์žˆ๋‹ค(๋‹จ๊ณ„ s90). ๊ทธ๋ฆฌ๊ณ , ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ(200)์„ ํฌํ•จํ•˜๋Š” ์ž๋™์ฐจ(250)์˜ ECU(260)๋กœ ์•Œ๋ ค ์šด์ „์ž์—๊ฒŒ ์ฐจ๋Ÿ‰ ์ ๊ฒ€ ์กฐ์น˜๋ฅผ ๋ฐ›๋„๋ก ํ•œ๋‹ค(๋‹จ๊ณ„ s80).At the same time as sending the abnormal signal, or when the wall of the module case 50 is compared with the horizontal plane in the normal state, it is determined that the second reference value, the third reference value higher than 50% in the present embodiment, and 60% or more in the present embodiment. At this time, the fire suppression material or the fire extinguishing agent 60 may be sprayed through the control unit 80, for example, to suppress the fire early (step s90). Then, the ECU 260 of the vehicle 250 including the battery pack 200 is notified to allow the driver to receive a vehicle inspection action (step s80).

์ด์ƒ๊ณผ ๊ฐ™์ด, ๋ณธ ๋ฐœ๋ช…์ด ํ•ด๊ฒฐํ•˜๊ณ ์ž ํ•˜๋Š” ๊ณผ์ œ ๋ฐ ์žฅ์ ๋“ค์€ ์œ„ ์ƒ์„ธํ•œ ์„ค๋ช…์— ์˜ํ•ด์„œ ์ดํ•ด๋  ์ˆ˜ ์žˆ์„ ๊ฒƒ์ด๋ฉฐ, ๋ณธ ๋ฐœ๋ช…์˜ ์‹ค์‹œ์˜ˆ์— ์˜ํ•ด ๋ณด๋‹ค ๋ถ„๋ช…ํ•˜๊ฒŒ ์•Œ ์ˆ˜ ์žˆ์„ ๊ฒƒ์ด๋‹ค. ๋˜ํ•œ, ๋ณธ ๋ฐœ๋ช…์ด ํ•ด๊ฒฐํ•˜๊ณ ์ž ํ•˜๋Š” ๊ณผ์ œ ๋ฐ ์žฅ์ ๋“ค์€ ํŠนํ—ˆ์ฒญ๊ตฌ๋ฒ”์œ„์— ๋‚˜ํƒ€๋‚ธ ์ˆ˜๋‹จ ๋ฐ ๊ทธ ์กฐํ•ฉ์— ์˜ํ•ด ์‹คํ˜„๋  ์ˆ˜ ์žˆ์Œ์„ ์‰ฝ๊ฒŒ ์•Œ ์ˆ˜ ์žˆ์„ ๊ฒƒ์ด๋‹ค. ๋ณธ ๋ฐœ๋ช…์€ ๋น„๋ก ํ•œ์ •๋œ ์‹ค์‹œ์˜ˆ์™€ ๋„๋ฉด์— ์˜ํ•ด ์„ค๋ช…๋˜์—ˆ์œผ๋‚˜, ๋ณธ ๋ฐœ๋ช…์€ ์ด๊ฒƒ์— ์˜ํ•ด ํ•œ์ •๋˜์ง€ ์•Š์œผ๋ฉฐ ๋ณธ ๋ฐœ๋ช…์ด ์†ํ•˜๋Š” ๊ธฐ์ˆ ๋ถ„์•ผ์—์„œ ํ†ต์ƒ์˜ ์ง€์‹์„ ๊ฐ€์ง„ ์ž์— ์˜ํ•ด ๋ณธ ๋ฐœ๋ช…์˜ ๊ธฐ์ˆ ์‚ฌ์ƒ๊ณผ ์•„๋ž˜์— ๊ธฐ์žฌ๋  ํŠนํ—ˆ์ฒญ๊ตฌ๋ฒ”์œ„์˜ ๊ท ๋“ฑ๋ฒ”์œ„ ๋‚ด์—์„œ ๋‹ค์–‘ํ•œ ์ˆ˜์ • ๋ฐ ๋ณ€ํ˜•์ด ๊ฐ€๋Šฅํ•จ์€ ๋ฌผ๋ก ์ด๋‹ค.As described above, the problems and advantages to be solved by the present invention will be understood by the above detailed description, will be more clearly understood by the embodiments of the present invention. In addition, it will be readily understood that the problems and advantages to be solved by the present invention can be realized by the means and combinations thereof shown in the claims. Although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto, and the technical spirit of the present invention and the claims to be described below by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents.

Claims (15)

์–‘๊ทน, ์Œ๊ทน ๋ฐ ์„ธํผ๋ ˆ์ดํ„ฐ๋กœ ๊ตฌ์„ฑ๋˜๋Š” ์ „๊ทน ์กฐ๋ฆฝ์ฒด ๋ฐ ์ƒ๊ธฐ ์ „๊ทน ์กฐ๋ฆฝ์ฒด๋ฅผ ์ˆ˜์šฉํ•˜๋Š” ํŒŒ์šฐ์น˜ํ˜• ์ „์ง€ ์ผ€์ด์Šค๋ฅผ ๊ตฌ๋น„ํ•˜๋Š” ์…€์„ ๋‹จ์ˆ˜ ๋˜๋Š” ๋ณต์ˆ˜๊ฐœ ๊ตฌ๋น„ํ•˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์— ์žˆ์–ด์„œ,A battery pack having a singular or plural number of cells including an electrode assembly comprising a positive electrode, a negative electrode, and a separator, and a pouch-type battery case accommodating the electrode assembly, ์ƒ๊ธฐ ์…€์€ ๋ชจ๋“ˆ ์ผ€์ด์Šค์— ์˜ํ•ด ์ˆ˜๋‚ฉ ์ ์ธต๋˜๊ณ ,The cells are stored and stacked by a module case, ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค๋Š” ๋‚ด๋ถ€ ๋˜๋Š” ์™ธ๋ถ€์— ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ(fire retarding material) ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ(fire extinguishing agent)๋ฅผ ๊ตฌ๋น„ํ•˜์—ฌ, The module case has a fire retarding material or a fire extinguishing agent inside or outside, ์ƒ๊ธฐ ์…€์˜ ์Šค์›ฐ๋ง ๋ฐœ์ƒ์‹œ ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๊ฐ€ ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค๋กœ๋ถ€ํ„ฐ ์ž๋™ ๋ฐฐ์ถœ๋˜๋Š” ๊ฒƒ์„ ํŠน์ง•์œผ๋กœ ํ•˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ. And the fire suppressing substance or extinguishing agent is automatically discharged from the module case when the swelling of the cell occurs. ์ œ1ํ•ญ์— ์žˆ์–ด์„œ, ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋Š” ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋‚ด๋ถ€ ๋ฒฝ๋ฉด ์ชฝ์— ๋ฉ์–ด๋ฆฌ ์ƒํƒœ์˜ ์†Œํ™” ๋ถ„๋ง๋กœ์„œ ์œ„์น˜ํ•˜๋‹ค๊ฐ€ ์ƒ๊ธฐ ์…€์˜ ์Šค์›ฐ๋ง์— ์˜ํ•ด ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋ฒฝ๋ฉด์ด ๋ฒŒ์–ด์ง์— ๋”ฐ๋ผ ์ƒ๊ธฐ ์…€ ์ชฝ์œผ๋กœ ๋–จ์–ด์ง€๋Š” ๊ฒƒ์„ ํŠน์ง•์œผ๋กœ ํ•˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ. The method of claim 1, wherein the fire suppressant or extinguishing agent is located as a fire extinguishing powder in a lump state on the inner wall of the module case and falls toward the cell as the module case wall is opened by swelling of the cell. Battery pack. ์ œ1ํ•ญ์— ์žˆ์–ด์„œ, ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋Š” ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋‚ด๋ถ€์— ๋“ค์–ด์žˆ๋‹ค๊ฐ€ ์ƒ๊ธฐ ์…€์˜ ์Šค์›ฐ๋ง์— ์˜ํ•ด ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค๊ฐ€ ๋ฒŒ์–ด์ง€๊ฑฐ๋‚˜ ํ‹ˆ์ด ์ƒ๊ธฐ๋ฉด ์ƒ๊ธฐ ์…€ ์ชฝ์œผ๋กœ ๋ถ„์‚ฌ๋˜๋Š” ๊ฒƒ์„ ํŠน์ง•์œผ๋กœ ํ•˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ.The battery pack as claimed in claim 1, wherein the fire suppressing material or the extinguishing agent is contained in the module case and sprayed into the cell when the module case is opened or has a gap due to swelling of the cell. ์ œ1ํ•ญ์— ์žˆ์–ด์„œ, ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋Š” ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋‚ด๋ถ€์˜ ๋นˆ ๊ณต๊ฐ„์— ์œ„์น˜ํ•˜๋Š” ๊ฒƒ์„ ํŠน์ง•์œผ๋กœ ํ•˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ.The battery pack as claimed in claim 1, wherein the fire suppressant or extinguishing agent is located in an empty space inside the module case. ์ œ4ํ•ญ์— ์žˆ์–ด์„œ, ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋Š” ์ƒ๊ธฐ ์…€์˜ ์ „๊ทน๋ฆฌ๋“œ๊ฐ€ ์žˆ๋Š” ๋ฉด์— ์œ„์น˜ํ•˜๋„๋ก ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค์˜ ์ƒ๋‹จ๋ถ€์— ์œ„์น˜ํ•˜๋Š” ๊ฒƒ์„ ํŠน์ง•์œผ๋กœ ํ•˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ.The battery pack as claimed in claim 4, wherein the fire suppressing material or the extinguishing agent is located at an upper end of the module case such that the fire suppressing material or the extinguishing agent is located on the side where the electrode lead of the cell is located. ์ œ1ํ•ญ์— ์žˆ์–ด์„œ, ์ƒ๊ธฐ ์…€์˜ ์Šค์›ฐ๋ง์— ์˜ํ•ด ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋ฒฝ๋ฉด์ด ํ‹€์–ด์ง์„ ํŒ๋‹จํ•  ์ˆ˜ ์žˆ๋Š” ์ˆ˜ํ‰ ๊ฐ์ง€ ์„ผ์„œ๋ฅผ ๋” ํฌํ•จํ•˜์—ฌ, ์ƒ๊ธฐ ์ˆ˜ํ‰ ๊ฐ์ง€ ์„ผ์„œ๊ฐ€ ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋ฒฝ๋ฉด์ด ํ‹€์–ด์ง„ ๊ฒƒ์œผ๋กœ ํŒ๋‹จํ•˜๋Š” ๊ฒฝ์šฐ ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๊ฐ€ ์ƒ๊ธฐ ์…€ ์ชฝ์œผ๋กœ ๋ถ„์‚ฌ๋˜๋Š” ๊ฒƒ์„ ํŠน์ง•์œผ๋กœ ํ•˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ.The fire suppression method of claim 1, further comprising a horizontal sensor configured to determine that the module case wall is twisted by swelling of the cell. A battery pack, wherein a substance or extinguishing agent is injected into the cell. ์ œ6ํ•ญ์— ์žˆ์–ด์„œ, ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋Š” ๋ถ„๋ง ๋˜๋Š” ์•ก์ฒด์ธ ๊ฒƒ์„ ํŠน์ง•์œผ๋กœ ํ•˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ. 7. The battery pack of claim 6 wherein the fire suppressant or extinguishing agent is a powder or a liquid. ์ œ6ํ•ญ์— ์žˆ์–ด์„œ, ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ์˜ ๋ฐฐ์ถœ์€ ์ œ์–ด๋ถ€์˜ ์‹ ํ˜ธ์— ์˜ํ•ด ์•ผ๊ธฐ๋˜๋Š” ๊ฒƒ์„ ํŠน์ง•์œผ๋กœ ํ•˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ.The battery pack as claimed in claim 6, wherein the discharge of the fire suppression material or the extinguishing agent is caused by a signal from the controller. ์ œ1ํ•ญ์— ์žˆ์–ด์„œ, ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค๋Š” ๊ฐ ์…€์„ ๋‚ด๋ถ€์— ์ˆ˜๋‚ฉํ•˜๋Š” ๊ตฌ์กฐ์ด๊ณ  ๊ฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ์‚ฌ์ด์— ์ ‘์ฐฉ์ œ๋กœ ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋ฅผ ์œ„์น˜์‹œ์ผœ, ์ƒ๊ธฐ ์…€์˜ ์Šค์›ฐ๋ง์— ์˜ํ•ด ์ ‘์ฐฉ๋ฉด์ด ๋ฒŒ์–ด์ง€๋Š” ๊ฒฝ์šฐ ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๊ฐ€ ํ™•์‚ฐ๋˜๋Š” ๊ฒƒ์„ ํŠน์ง•์œผ๋กœ ํ•˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ.The method of claim 1, wherein the module case has a structure for accommodating each cell therein, and the fire suppression material or the extinguishing agent is positioned with an adhesive between each module case, and the adhesive surface is opened by swelling of the cell. A battery pack, wherein the fire suppressant or extinguishing agent is diffused. ์ œ9ํ•ญ์— ์žˆ์–ด์„œ, ์–‡์€ ๋ง‰ ๋˜๋Š” ํ™”์žฌ์‹œ ์ž˜ ๋…น๋Š” ์†Œ์žฌ์˜ ๋ง‰์œผ๋กœ ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋ฅผ ๊ฐ์‹ผ ํ›„ ์ƒ๊ธฐ ์ ‘์ฐฉ์ œ๋ฅผ ํ†ตํ•ด ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ์‚ฌ์ด์— ๋ถ€์ฐฉํ•œ ๊ฒƒ์„ ํŠน์ง•์œผ๋กœ ํ•˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ.The battery pack as claimed in claim 9, wherein the fire suppressing material or the extinguishing agent is wrapped with a thin film or a film that melts well in a fire and is attached between the module cases through the adhesive. ์ œ1ํ•ญ์— ์žˆ์–ด์„œ, ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค๋Š” ๊ฐ ์…€์„ ๋‚ด๋ถ€์— ์ˆ˜๋‚ฉํ•˜๋Š” ๊ตฌ์กฐ์ด๊ณ , ์–‡์€ ๋ง‰ ๋˜๋Š” ํ™”์žฌ์‹œ ์ž˜ ๋…น๋Š” ์†Œ์žฌ์˜ ๋ง‰์œผ๋กœ ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋ฅผ ๊ฐ์‹ผ ํ›„ ์ ‘์ฐฉ์ œ๋ฅผ ํ†ตํ•ด ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋‚ด๋ถ€ ๋นˆ ๊ณต๊ฐ„์— ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋ฅผ ์œ„์น˜์‹œ์ผœ, ์ƒ๊ธฐ ์…€์˜ ์Šค์›ฐ๋ง์— ์˜ํ•ด ์ ‘์ฐฉ๋ฉด์ด ๋ฒŒ์–ด์ง€๋Š” ๊ฒฝ์šฐ ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๊ฐ€ ๋ฐฐ์ถœ ๋˜๋Š” ํ™•์‚ฐ๋˜๋Š” ๊ฒƒ์„ ํŠน์ง•์œผ๋กœ ํ•˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ. The method of claim 1, wherein the module case is a structure for accommodating each cell therein, the empty space inside the module case through the adhesive after wrapping the fire suppression material or fire extinguishing agent with a thin film or a film of a material that melts well in case of fire Placing the fire suppressant or extinguishing agent in the battery pack, wherein the fire suppressant or extinguishing agent is discharged or diffused when the adhesive surface is opened by swelling of the cell. ์ œ1ํ•ญ์— ์žˆ์–ด์„œ, ์ƒ๊ธฐ ํ™”์žฌ ์–ต์ œ ๋ฌผ์งˆ ๋˜๋Š” ์†Œํ™” ์•ฝ์ œ๋Š” ํƒ„์‚ฐ์นผ์Š˜, ์ œ1 ์ธ์‚ฐ์•”๋ชจ๋Š„ ๋ฐ ํ• ๋กœ๊ฒ ํ™”ํ•ฉ๋ฌผ๋กœ ์ด๋ฃจ์–ด์ง„ ๊ตฐ์œผ๋กœ๋ถ€ํ„ฐ ์„ ํƒ๋˜๋Š” 1์ข…์˜ ๋ฌผ์งˆ์ธ ๊ฒƒ์„ ํŠน์ง•์œผ๋กœ ํ•˜๋Š” ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ. The battery pack according to claim 1, wherein the fire suppressing substance or extinguishing agent is one substance selected from the group consisting of calcium carbonate, first ammonium phosphate and a halogen compound. ์ œ6ํ•ญ ๋‚ด์ง€ ์ œ8ํ•ญ ์ค‘ ์–ด๋Š ํ•œ ํ•ญ์— ๋”ฐ๋ฅธ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์„ ํฌํ•จํ•˜๋Š” ์ž๋™์ฐจ์˜ ์ œ์–ด ๋ฐฉ๋ฒ•์œผ๋กœ์„œ,A control method of an automobile comprising a battery pack according to any one of claims 6 to 8, ์ƒ๊ธฐ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ BMS์— ํฌํ•จ๋œ MCU์—๋Š” ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋ฒฝ๋ฉด์ด ์ •์ƒ ์ƒํƒœ์˜ ์ˆ˜ํ‰๋ฉด๊ณผ ๋น„๊ตํ•ด ํ‹€์–ด์ง€๊ธฐ๋Š” ํ–ˆ์ง€๋งŒ ํ—ˆ์šฉ ๊ฐ€๋Šฅํ•œ ์ •๋„์ธ ๊ฐ’์ธ ์ œ1 ๊ธฐ์ค€๊ฐ’์ด ์„ค์ •๋˜์–ด ์žˆ๊ณ , The MCU included in the BMS of the battery pack has a first reference value, which is an acceptable value, although the module case wall is distorted compared to the normal horizontal plane, ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋ฒฝ๋ฉด์ด ์ •์ƒ ์ƒํƒœ์˜ ์ˆ˜ํ‰๋ฉด๊ณผ ๋น„๊ตํ•ด ์ œ1 ๊ธฐ์ค€๊ฐ’ ์ด์ƒ ํ‹€์–ด์งˆ ๋•Œ ๊ฒฝ๊ณ  ์•Œ๋ฆผ์„ ์ƒ๊ธฐ MCU์—๊ฒŒ ์•Œ๋ฆฌ๋Š” ๋‹จ๊ณ„; ๋ฐInforming the MCU of a warning notification when the module case wall is misaligned with the horizontal plane in a normal state by more than a first reference value; And ์ƒ๊ธฐ MCU๊ฐ€ ์…€ ์ „์••์„ ์ธก์ •ํ•˜๋Š” ASIC IC๋ฅผ ํ†ตํ•ด ํ˜„์žฌ ์…€ ์ „์••์„ ์ธก์ •ํ•˜์—ฌ ๊ณผ์ „์••(Over Voltage, OV) ์ƒํƒœ์ธ์ง€๋ฅผ ํŒ๋‹จํ•˜๊ณ , ์ƒ๊ธฐ ์…€ ์ „์••์ด ์ •์ƒ์ผ ๊ฒฝ์šฐ ๊ฒฝ๊ณ (warning) ์‹ ํ˜ธ ํ›„ ๋‹ค์‹œ ์ •์ƒ(normal) ์ƒํƒœ๋กœ ๋Œ์•„์˜ค๊ฒŒ ํ•˜๋ฉฐ, ๊ณผ์ถฉ์ „ ์ƒํƒœ์ผ ๊ฒฝ์šฐ ์ƒ๊ธฐ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ๋ฆด๋ ˆ์ด๋ฅผ ์ฐจ๋‹จํ•˜๋Š” ๋‹จ๊ณ„๋ฅผ ํฌํ•จํ•˜๋Š” ์ œ์–ด ๋ฐฉ๋ฒ•.The MCU determines an overvoltage (OV) state by measuring a current cell voltage through an ASIC IC that measures the cell voltage.If the cell voltage is normal, the MCU returns to a normal state after a warning signal. And returning and blocking the relay of the battery pack when the battery is in an overcharge state. ์ œ13ํ•ญ์— ์žˆ์–ด์„œ, ์ƒ๊ธฐ ์ˆ˜ํ‰๋ฉด์ด ๊ณ„์† ํ‹€์–ด์ง„ ์ƒํƒœ๋ฅผ ์œ ์ง€ํ•  ๋•Œ์— ์ƒ๊ธฐ MCU๋ฅผ ํ†ตํ•ด ์ƒ๊ธฐ ์ž๋™์ฐจ์˜ ECU๋กœ ์•Œ๋ฆฌ๋Š” ๋‹จ๊ณ„๋ฅผ ๋” ํฌํ•จํ•˜๋Š” ๊ฒƒ์„ ํŠน์ง•์œผ๋กœ ํ•˜๋Š” ์ œ์–ด ๋ฐฉ๋ฒ•.The control method as claimed in claim 13, further comprising the step of informing the ECU of the vehicle through the MCU when the horizontal plane continues to be distorted. ์ œ14ํ•ญ์— ์žˆ์–ด์„œ, ์ƒ๊ธฐ MCU์—๋Š” ์ƒ๊ธฐ ์ œ1 ๊ธฐ์ค€๊ฐ’๋ณด๋‹ค ํฌ๋ฉฐ, ์ƒ๊ธฐ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ๋ฆด๋ ˆ์ด๋ฅผ ์ฐจ๋‹จํ•ด์•ผ ํ•˜๋Š” ์ •๋„์˜ ๋น„์ •์ƒ ์ƒํ™ฉ์„ ํŒ๊ฐ€๋ฆ„ํ•˜๋Š” ๊ฐ’์ธ ์ œ2 ๊ธฐ์ค€๊ฐ’์ด ๋” ์„ค์ •๋˜์–ด ์žˆ๊ณ , ์ƒ๊ธฐ ๋ชจ๋“ˆ ์ผ€์ด์Šค ๋ฒฝ๋ฉด์ด ์ •์ƒ ์ƒํƒœ์˜ ์ˆ˜ํ‰๋ฉด๊ณผ ๋น„๊ตํ•ด ์ œ2 ๊ธฐ์ค€๊ฐ’ ์ด์ƒ ํ‹€์–ด์งˆ ๋•Œ ๋น„์ •์ƒ ์‹ ํ˜ธ๋ฅผ ์ƒ๊ธฐ MCU ๋ฐ ์ง์ ‘์ ์œผ๋กœ ์ƒ๊ธฐ ECU๋กœ ๋ณด๋‚ด ์ƒ๊ธฐ ๋ฐฐํ„ฐ๋ฆฌ ํŒฉ์˜ ๋ฆด๋ ˆ์ด๋ฅผ ์ฐจ๋‹จํ•˜๊ณ  ์ฐจ๋Ÿ‰ ๋น„์ •์ƒ ์ƒํ™ฉ์„ ์•Œ๋ฆฌ๋Š” ๋‹จ๊ณ„๋ฅผ ๋” ํฌํ•จํ•˜๋Š” ๊ฒƒ์„ ํŠน์ง•์œผ๋กœ ํ•˜๋Š” ์ œ์–ด ๋ฐฉ๋ฒ•.15. The method of claim 14, wherein the MCU is greater than the first reference value, the second reference value that is a value that determines the abnormal situation of the degree to cut off the relay of the battery pack is further set, the module case wall surface of the normal state And sending an abnormal signal directly to the MCU and the ECU when the second reference value is misaligned with respect to a horizontal plane to block a relay of the battery pack and notify a vehicle abnormality condition.
PCT/KR2016/009333 2015-11-26 2016-08-23 Battery pack comprising fire extinguishing device, and control method using same Ceased WO2017090866A1 (en)

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CN113594605A (en) * 2021-07-31 2021-11-02 ๆต™ๆฑŸ็ฑณ็š‡ๆ–ฐๆ่‚กไปฝๆœ‰้™ๅ…ฌๅธ Automobile battery aluminum-clad section
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