WO2022186663A1 - 배터리 팩 및 이를 포함하는 자동차 - Google Patents
배터리 팩 및 이를 포함하는 자동차 Download PDFInfo
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- WO2022186663A1 WO2022186663A1 PCT/KR2022/003122 KR2022003122W WO2022186663A1 WO 2022186663 A1 WO2022186663 A1 WO 2022186663A1 KR 2022003122 W KR2022003122 W KR 2022003122W WO 2022186663 A1 WO2022186663 A1 WO 2022186663A1
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- Prior art keywords
- battery
- cell
- battery pack
- assembly
- unit
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- 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
- H01M50/242—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 against vibrations, collision impact or swelling
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- 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
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- 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
- H01M50/258—Modular batteries; Casings provided with means for assembling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/643—Cylindrical cells
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the cells
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
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- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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- 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
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
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- 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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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- 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
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- 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
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
- H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
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- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
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- 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
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- 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 an automobile including the same.
- Secondary batteries which are easy to apply according to product groups and have electrical characteristics such as high energy density, are not only portable devices, but also electric vehicles (EVs) or hybrid vehicles (HEVs) driven by an electric drive source. It is universally applied. These secondary batteries are attracting attention as a new energy source for improving eco-friendliness and energy efficiency in that not only the primary advantage of being able to dramatically reduce the use of fossil fuels, but also the fact that no by-products are generated from the use of energy.
- EVs electric vehicles
- HEVs hybrid vehicles
- the types of secondary batteries currently widely used include a lithium ion battery, a lithium polymer battery, a nickel cadmium battery, a nickel hydrogen battery, a nickel zinc battery, and the like.
- the unit secondary battery cell that is, the operating voltage of the unit battery cell is about 2.5V ⁇ 4.5V. Accordingly, when a higher output voltage is required, a plurality of battery cells are connected in series to form a battery pack. In addition, a plurality of battery cells may be connected in parallel to form a battery pack according to the charge/discharge capacity required for the battery pack. Accordingly, the number of battery cells included in the battery pack may be variously set according to a required output voltage or charge/discharge capacity.
- a battery module including at least one battery cell is first configured, and other components are added using the at least one battery module. It is common to configure battery packs or battery racks.
- a conventional battery pack is generally configured to include a plurality of battery cells and a cell frame accommodating the plurality of battery cells.
- a conventional cell frame generally accommodates the plurality of battery cells and consists of an assembly of a plurality of plates such as a front plate, a rear plate, a side plate, a lower plate, and an upper plate to secure rigidity.
- the size of the entire battery pack increases according to the cell frame structure configured by the assembly of the plurality of plates, which is disadvantageous in terms of energy density.
- an object of the present invention is to provide a battery pack capable of securing rigidity while increasing energy density and a vehicle including the same.
- Another object of the present invention is to provide a battery pack capable of improving cost competitiveness and manufacturing efficiency, and a vehicle including the same.
- Another object of the present invention is to provide a battery pack capable of improving cooling performance and a vehicle including the same.
- the present invention provides a battery pack comprising: a battery cell assembly including a plurality of battery cells; a bus bar assembly disposed on one side of the battery cell assembly; a cooling unit disposed between the plurality of battery cells; and a cell accommodating unit partitioning the plurality of battery cells together with the cooling unit.
- the battery pack may include a filling member filling a space between the cooling unit and the plurality of battery cells.
- the filling member may be filled in the bus bar assembly to at least partially cover the bus bar assembly.
- the filling member may be filled to cover both the battery cell assembly and the cell accommodating unit.
- the filling member may be continuously filled between the bus bar assembly and the battery cells in a vertical direction of the battery cell assembly.
- the filling member may be provided with a potting resin.
- the cell accommodating unit may include at least one accommodating member that is formed to have a predetermined length along a longitudinal direction of the battery cell assembly and covers at least one side of the battery cells.
- the at least one accommodating member may have a shape corresponding to the outer surfaces of the plurality of battery cells facing each other.
- the accommodating member is provided in plurality, and the plurality of accommodating members may be disposed to be spaced apart from each other by a predetermined distance along a width direction of the battery cell assembly.
- each accommodating member may include a plurality of cell accommodating parts for accommodating facing battery cells.
- the plurality of cell accommodating parts may be concave to have a predetermined depth.
- the plurality of cell accommodating parts may have a shape corresponding to the outer surfaces of the facing battery cells.
- an adhesive may be provided between the battery cells and the cell accommodating parts.
- the adhesive may be provided as a potting resin.
- the cooling unit may be disposed between the plurality of accommodating members in a width direction of the battery cell assembly.
- the cooling unit includes: a plurality of cooling tubes formed to have a predetermined length in a longitudinal direction of the battery cell assembly, disposed between the plurality of battery cells, and provided with a cooling passage for circulating cooling water therein; and a coolant inlet/outlet connected to the plurality of cooling tubes in communication with the cooling passages of the plurality of cooling tubes.
- the plurality of cooling tubes may be disposed between the plurality of accommodating members.
- the cooling passage includes: an upper passage provided near the bus bar assembly; a lower passage spaced apart from the upper passage; and a connection flow path connecting the upper flow path and the lower flow path.
- connection passage may be provided on the opposite side of the coolant inlet and outlet.
- the coolant inlet/outlet includes: a coolant supply port connected to the upper flow passage; and a cooling water discharge port connected to the lower flow path.
- the upper flow path and the lower flow path may be provided in plurality.
- the cell accommodating unit is coupled to the cell accommodating unit, and may include a cell support for supporting the battery cell assembly and the cooling unit.
- a support rib protruding to a predetermined height to support the cell accommodation unit may be formed in the cell support part.
- the support ribs are provided in plurality, and the cooling unit may be disposed between the plurality of support ribs.
- the support rib may be provided with an insertion groove having a predetermined depth into which the bottom of the cell accommodating unit is inserted.
- the cell support portion may be disposed perpendicular to the cell accommodation unit.
- the cell accommodating unit may support side portions of the battery cells, and the cell support portion may support bottom portions of the battery cells.
- the cell support unit may include a cell mounting unit in which the battery cells are mounted.
- the cell mounting portion may be formed with an opening having a predetermined size.
- the opening may have a size that does not exceed a diameter of the battery cell.
- the cell accommodating unit may be arranged in a honeycomb shape.
- the bus bar assembly may be disposed above the battery cell assembly.
- the present invention provides a vehicle comprising at least one battery pack according to the above-described embodiments as a vehicle.
- the present invention provides a battery pack, comprising: a battery cell assembly including a plurality of battery cells; a cell accommodating unit and a cell support unit coupled to each other to support the plurality of battery cells; and a filling member filled to cover the battery cell assembly and the cell accommodating unit.
- the cell support part may be vertically coupled to the cell accommodating unit.
- the cell accommodating unit may be provided with a reinforcing structure for reinforcing the rigidity of the battery cell assembly on both outermost sides.
- the reinforcing structure may be provided as a prismatic concave-convex structure protruding to the outside of the cell accommodating unit.
- the reinforcing structure may be continuously formed along a longitudinal direction of the battery cell assembly.
- the reinforcing structure may have a triangular pyramid shape or a trapezoidal shape.
- the filling member may be filled to cover the reinforcing structure.
- FIG. 1 is a view for explaining a battery pack according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view of the battery pack of FIG. 1 ;
- FIG. 3 is a view for explaining a battery cell of the battery cell assembly of the battery pack of FIG. 2 .
- FIG. 4 is a view for explaining a battery cell according to another embodiment of the battery cell assembly of FIG. 3 .
- FIG. 5 is a perspective view of a busbar assembly of the battery pack of FIG. 2 ;
- FIG. 6 is a perspective view of a connecting bus bar of the bus bar assembly of FIG. 5 ;
- FIG. 7 is a perspective view of a cooling unit of the battery pack of FIG. 2 .
- FIG. 8 is a cross-sectional view of the cooling unit of FIG. 7 .
- FIG. 9 is a perspective view of a cell accommodating unit of the battery pack of FIG. 2 ;
- FIG. 10 is a perspective view of a cell support part of the battery pack of FIG. 2 .
- FIG. 11 is a view for explaining a support rib according to another embodiment of the cell support of FIG.
- FIG. 12 is a view for explaining the formation of a pack case structure through a filling member of the battery pack of FIG. 1 .
- FIG. 13 is a view for explaining a cell accommodation unit according to another embodiment of the present invention.
- Fig. 14 is an enlarged view of a main part of the cell accommodating unit of Fig. 13;
- FIG. 15 is a view for explaining the formation of a pack case structure through the filling member of the battery pack provided with the cell accommodating unit of FIG. 13 .
- 16 is a view for explaining a vehicle according to an embodiment of the present invention.
- FIG. 1 is a view for explaining a battery pack according to an embodiment of the present invention
- FIG. 2 is an exploded perspective view of the battery pack of FIG. 1 .
- the battery pack 10 may be provided in an electric vehicle or a hybrid vehicle as an energy source.
- the battery pack 10 provided for the electric vehicle or the like will be described in more detail with reference to the following related drawings.
- the battery pack 10 may include a battery cell assembly 100 , a bus bar assembly 200 , a cooling unit 300 , and a cell accommodating unit 400 .
- the plurality of battery cells 150 may be a cylindrical secondary battery, a pouch-type secondary battery, or a prismatic secondary battery as a secondary battery.
- the plurality of battery cells 150 will be described by limiting them to cylindrical secondary batteries.
- FIG. 3 is a view for explaining a battery cell of the battery cell assembly of the battery pack of FIG. 2 .
- the plurality of battery cells 150 may be stacked to be electrically connected to each other.
- the plurality of battery cells 150 may include a positive electrode 175 and a negative electrode 170 at an upper end thereof.
- the positive electrode 175 of the battery cell 150 is provided at the center of the upper end of the battery cell 150
- the negative electrode 170 of the battery cell 150 is the upper end of the battery cell 150 . It may be provided on the rim.
- the positive electrode 175 and the negative electrode 170 of the plurality of battery cells 150 are one side (+Z-axis direction) of the battery cells 150 , specifically, the battery cells Since they are all provided on the upper side (+Z-axis direction) of 150 , electrical connection with the bus bar assembly 200 to be described later may be easier.
- both the positive electrode 175 and the negative electrode 170 of the plurality of battery cells 150 have a structure in which they are disposed in the same direction (+Z-axis direction), the positive electrode 175 and the negative electrode 170 of the plurality of battery cells 150 are disposed in opposite directions.
- a connection structure with the bus bar assembly 200 to be described later may be more simplified than a structure arranged in the direction, and a volume occupied by the electrical connection structure may also be reduced.
- the structure of the electrical connection between the battery cells 150 and the bus bar assembly 200 to be described later is simplified, so that the structure of the battery pack 10 can be made compact and energy density improved.
- the battery cell 150 may include an electrode assembly 160 , a battery can 170 , and a top cap 175 .
- the battery cell 150 may further include an airtight gasket 180 , a current collecting plate 185 , an insulating plate 190 , and a connection plate 195 in addition to the above-described components.
- the electrode assembly 160 includes a first electrode plate having a first polarity, a second electrode plate having a second polarity, and a separator interposed between the first electrode plate and the second electrode plate.
- the electrode assembly 160 may have a jelly-roll shape. That is, the electrode assembly 160 may be manufactured by winding a stack formed by sequentially stacking a first electrode plate, a separator, and a second electrode plate at least once with the winding center C as a reference. In this case, a separator may be provided on the outer peripheral surface of the electrode assembly 160 to insulate it from the battery can 170 .
- the first electrode plate is a positive electrode plate or a negative electrode plate
- the second electrode plate corresponds to an electrode plate having a polarity opposite to that of the first electrode plate.
- the first electrode plate includes a first electrode current collector and a first electrode active material coated on one or both surfaces of the first electrode current collector.
- An uncoated region to which the first electrode active material is not applied is provided at one end of the first electrode current collector in the width direction (parallel to the Z-axis).
- the uncoated region functions as the first electrode tab 162 .
- the first electrode tab 162 is provided above the electrode assembly 160 accommodated in the battery can 170 in the height direction (parallel to the Z-axis).
- the second electrode plate includes a second electrode current collector and a second electrode active material coated on one or both surfaces of the second electrode current collector.
- An uncoated region to which the second electrode active material is not applied is present at the other end of the second electrode current collector in the width direction (parallel to the Z-axis).
- the uncoated region functions as the second electrode tab 164 .
- the second electrode tab 164 is provided under the height direction (parallel to the Z-axis) of the electrode assembly 160 accommodated in the battery can 170 .
- the battery can 170 is a cylindrical container having an opening formed thereon, and is made of a conductive metal material.
- the battery can 170 accommodates the electrode assembly 160 through the upper opening, and also accommodates the electrolyte.
- the battery can 170 is electrically connected to the second electrode tab 164 of the electrode assembly 160 . Accordingly, the battery can 170 has the same polarity as the second electrode tab 164 . In this embodiment, the battery can 170 may function as the negative electrode 170 .
- the battery can 170 includes a beading part 171 and a crimping part 172 formed at an upper end thereof.
- the beading portion 171 is formed on the electrode assembly 160 .
- the beading part 171 is formed by press-fitting the outer peripheral surface of the battery can 170 .
- the beading part 171 prevents the electrode assembly 160 having a size corresponding to the width of the battery can 170 from coming out through the upper opening of the battery can 170 , and the top cap 175 is seated therein. It may function as a support.
- the upper edge 173 of the beading part 171 of the battery can 170 may be fitted or placed in contact with the guide groove 249 of the negative electrode connection part 248 of the bus bar assembly 200 to be described later. This is to facilitate the welding process during a welding process for electrical connection between the bus bar assembly 200 and the battery can 170 serving as the negative electrode 170, which will be described later.
- the crimping part 172 is formed on the beading part 171 .
- the crimping part 172 has an extended and bent shape so as to surround a portion of the outer peripheral surface of the top cap 175 disposed on the beading part 171 and an upper surface of the top cap 175 .
- the top cap 175 is a component made of a conductive metal material and covers an upper opening of the battery can 170 .
- the top cap 175 is electrically connected to the first electrode tab 162 of the electrode assembly 160 and is electrically insulated from the battery can 170 . Accordingly, the top cap 175 may function as the positive electrode 175 of the battery cell 150 .
- the top cap 175 is seated on the beading part 171 formed on the battery can 170 , and is fixed by the crimping part 172 . Between the top cap 175 and the crimping part 172 of the battery can 170 , the airtightness of the battery can 170 is ensured and the airtightness of the battery can 170 and the top cap 175 is electrically insulated. A gasket 180 may be interposed therebetween.
- the top cap 175 may include a protrusion formed to protrude upward from the center thereof.
- the protrusion may guide so as to facilitate contact with an electrical connection component such as a bus bar.
- the current collecting plate 185 is coupled to the upper portion of the electrode assembly 160 .
- the current collecting plate 185 is made of a conductive metal material and is connected to the first electrode tab 162 .
- a lead 187 may be connected to the current collecting plate 185 , and the lead 187 may extend upwardly of the electrode assembly 160 and be directly coupled to the top cap 175 or coupled to a lower surface of the top cap 175 . It may be coupled to the connecting plate 195 to be.
- the current collecting plate 185 is coupled to an end of the first electrode tab 162 .
- the coupling between the first electrode tab 162 and the current collecting plate 185 may be performed, for example, by laser welding.
- the laser welding may be performed by partially melting the base material of the current collecting plate 185 , or may be performed with solder for welding interposed between the current collecting plate 185 and the first electrode tab 162 .
- the solder may have a lower melting point compared to the current collecting plate 185 and the first electrode tab 162 .
- the current collecting plate 185 may also be coupled to the lower surface of the electrode assembly 160 .
- one surface of the current collecting plate 185 is coupled to the second electrode tab 164 of the electrode assembly 160 by welding, and the opposite surface is welded to the inner bottom surface of the battery can 170 by welding. can be combined.
- the coupling structure of the current collecting plate 185 and the second electrode tab 164 coupled to the lower surface of the electrode assembly 160 is substantially the same as the current collecting plate 185 coupled to the upper surface of the electrode assembly 160 described above. do.
- the insulating plate 190 is disposed between the upper end of the electrode assembly 160 and the beading portion 171 or between the current collecting plate 185 and the beading portion 171 coupled to the upper portion of the electrode assembly 160 to provide a first A contact between the electrode tab 162 and the battery can 170 or between the current collecting plate 185 and the battery can 170 is prevented.
- the insulating plate 190 includes a lead hole 193 through which a lead 187 extending upwardly from the current collecting plate 185 or from the first electrode tab 162 can be drawn out.
- the lead 187 is drawn upward through the lead hole 193 and coupled to the lower surface of the connection plate 195 or the lower surface of the top cap 175 .
- the top cap 175 and The upper edge 173 of the battery can 170 has a structure that can be used as the positive electrode 175 and the negative electrode 170, respectively. Therefore, in the case of electrically connecting a plurality of battery cells 150 according to an embodiment of the present invention, the electrical connection components such as the bus bar assembly 200 are disposed on only one side of the battery cells 150 . This becomes possible, which can lead to a simplification of the structure and an improvement in energy density.
- FIG. 4 is a view for explaining a battery cell according to another embodiment of the battery cell assembly of FIG. 3 .
- the battery cell 155 according to the present embodiment is similar to the battery cell 150 of the previous embodiment, redundant descriptions of components substantially the same as or similar to those of the previous embodiment will be omitted, and hereinafter, the previous embodiment will be omitted. The difference between and will be explained.
- the battery cell 155 may further include a metal washer 197 and an insulation washer 199 in addition to the configuration of the battery cell 150 .
- the metal washer 197 is made of a metal material having conductivity, and is a component having a substantially disk shape with a hole formed in the center thereof.
- the metal washer 197 is coupled to the crimping portion 172 of the battery can 170 .
- the coupling between the metal washer 197 and the crimping part 172 may be performed, for example, by laser welding.
- the metal washer 197 is electrically insulated from the top cap 175 .
- the top cap 175 is exposed through a hole formed in the center of the metal washer 175 , and the metal washer 197 and the protrusion formed in the center of the top cap 175 are spaced apart from each other.
- the metal washer 197 is vertically spaced apart from the remaining portions except for the protrusion of the top cap 175 . Accordingly, the metal washer 197 is electrically connected to the second electrode tab 164 and the battery can 170 , and may function as a negative electrode of the battery cell 155 .
- the width D2 of the metal washer 197 is formed to be larger than the width D1 of the upper surface of the crimping portion 172 of the battery can 170 .
- an electrical connection component such as the bus bar assembly 200 is coupled to the metal washer 197 to connect the plurality of battery cells 150 .
- the bonding area between the electrical connection component and the metal washer 197 is in order to be enlarged.
- the welding process can be smoothly performed, the fastening force between the two parts can be improved, and the electrical resistance at the coupling part can be reduced. have.
- the insulating washer 199 is interposed between the top cap 175 and the metal washer 197 .
- the insulating washer 199 is made of an insulating material.
- the top cap 175 functions as a positive electrode and the metal washer 197 functions as a negative electrode, the top cap 175 and the metal washer 197 must remain electrically insulated. Therefore, it may be advantageous that the insulating washer 199 is applied to stably maintain such an insulating state.
- the insulating washer 199 is interposed between the lower surface of the metal washer 197 and the top cap 175 .
- the metal washer 197 has a width D2 greater than the width D1 of the upper surface of the crimping portion 172 , and a protrusion of the central portion of the top cap 175 from the crimping portion 172 . It has a shape extending in the direction toward Therefore, the insulating washer 199 is formed in the center of the metal washer 197 so that the inner surface of the hole formed in the center of the metal washer 197 and the protrusion of the top cap 175 cannot contact each other, the inner surface of the hole formed in the center of the metal washer 197 It may have an extended form to cover.
- the insulation washer 199 When the insulation washer 199 is made of a resin material, the insulation washer 199 may be coupled to the metal washer 197 and the top cap 175 by thermal fusion. In this case, airtightness at the bonding interface between the insulating washer 199 and the metal washer 197 and at the bonding interface between the insulating washer 199 and the top cap 175 may be enhanced.
- bus bar assembly 200 for electrical connection with the plurality of battery cells 150 will be described in more detail.
- FIG. 5 is a perspective view of a bus bar assembly of the battery pack of FIG. 2
- FIG. 6 is a perspective view of a connection bus bar of the bus bar assembly of FIG. 5 .
- the bus bar assembly 200 is provided on the upper side (+Z-axis direction) of the battery cell assembly 100 and may be electrically connected to the plurality of battery cells 150 . have.
- the electrical connection of the bus bar assembly 200 may be parallel and/or series connection.
- the bus bar assembly 200 is electrically connected to the positive electrode 175 (refer to FIG. 3 ) and the negative electrode 170 (refer to FIG. 3 ) of the plurality of battery cells 150 (refer to FIG. 2 ), and is externally charged. It may be electrically connected to the /discharge line and the like through connectors 260 and 270 .
- the bus bar assembly 200 may include a pair of main bus bars 210 and 220 , a connection bus bar 230 , a cooling unit insertion slit 250 , and a pair of connectors 260 and 270 . .
- the pair of main bus bars 210 and 220 may be electrically connected to the battery cell assembly 100 and may include connectors 260 and 270 connected to an external charge/discharge line.
- the pair of main bus bars 210 and 220 may be electrically connected to the battery cells 150 disposed on the outermost both sides (X-axis direction) of the battery cells 150 of the battery cell assembly 100 . have. Specifically, the pair of main bus bars 210 and 220 may be electrically connected to the battery cells 150 disposed at the outermost sides in the longitudinal direction (X-axis direction) of the battery cell assembly 100 , respectively. have.
- the pair of main bus bars 210 and 220 may include a main positive bus bar 210 and a main negative bus bar 220 .
- the main positive bus bar 210 may be disposed on one side (-X-axis direction) of the bus bar assembly 200 from the upper side (+Z-axis direction) of the battery cell assembly 100 .
- the main positive bus bar 210 may be electrically connected to the positive electrode 175 of the battery cells 150 disposed on the outermost side (-X-axis direction) of the battery cell assembly 100 .
- the electrical connection may be performed through a welding process for electrical connection such as laser welding or ultrasonic welding.
- the main positive bus bar 210 may include a positive connector 260 to be described later for connection with the charge/discharge line.
- the positive connector 260 may be provided to protrude from one side (-X-axis direction) of the main positive bus bar 210 .
- the main negative bus bar 220 may be disposed on the other side (+X-axis direction) of the bus bar assembly 200 from the upper side (+Z-axis direction) of the battery cell assembly 100 .
- the main negative bus bar 220 may be electrically connected to the negative electrode 170 of the battery cells 150 disposed on the outermost side (+X-axis direction) of the battery cell assembly 100 .
- the electrical connection may be performed through a welding process for electrical connection such as laser welding or ultrasonic welding.
- the main negative bus bar 220 may be provided with a negative connector 270 to be described later for connection with the charge/discharge line.
- the negative connector 270 may be provided to protrude from the other side (+X-axis direction) of the main negative bus bar 220 .
- connection bus bar 230 is for electrical connection of the plurality of battery cells 150 and may be provided in plurality.
- the plurality of connection bus bars 230 are electrically connected to the pair of main bus bars 210 and 220 , and are electrically connected to the positive electrode 175 and the negative electrode 170 of the plurality of battery cells 150 . can be connected
- the plurality of connection bus bars 230 may be disposed to be spaced apart from each other by a predetermined distance along a longitudinal direction (X-axis direction) of the battery cell assembly 100 .
- the plurality of connection bus bars 230 are disposed between the main positive bus bar 210 and the main negative bus bar 220 in the longitudinal direction (X-axis direction) of the bus bar assembly 200 . can be
- connection bus bars 230 may include a layer body 242 and electrode connection portions 246 and 248, respectively.
- the layer body 242 may be formed to have a predetermined length along a width direction (Y-axis direction) of the battery cell assembly 100 .
- the layer body 242 corresponds to an arrangement structure of the battery cells 150 in the width direction (Y-axis direction) of the battery cell assembly 100 for electrical connection with the battery cells 150 . It may be provided in a shape.
- the layer body 242 may be made of a conductive material.
- the layer body 242 may be made of aluminum or copper as a metal material.
- the present invention is not limited thereto, and of course, the layer body 242 may be made of other materials for the electrical connection.
- a support layer may be provided at the bottom of the layer body 242 .
- the support layer is provided at the bottom (-Z-axis direction) of the layer body 242 and may support the layer body 242 .
- the support layer may have a shape corresponding to the layer body 242 , and may be contact-fixed to the bottom (-Z-axis direction) of the layer body 250 .
- the support layer may be formed of an insulating material to prevent an electrical short between the plurality of battery cells 150 and the layer body 242 .
- the support layer may be formed of a polyimide film.
- the present invention is not limited thereto, and the support layer may be formed of other insulating members made of an insulating material.
- the electrode connection parts 246 and 248 may protrude from the layer body 242 and may be connected to the positive electrode 175 and the negative electrode 170 of the battery cells 150 .
- the electrode connection parts 246 and 248 may include a positive electrode connection part 246 and a negative electrode connection part 248 .
- the positive electrode connection part 246 is provided in plurality, and protrudes to a predetermined size on one side (+X-axis direction) of the layer body 242 , and extends along the longitudinal direction (Y-axis direction) of the layer body 242 . They may be disposed to be spaced apart from each other by a predetermined distance.
- the plurality of positive electrode connection parts 246 are electrically connected to the positive electrode 175 of the battery cells 150 of the battery cell assembly 100 disposed on the lower side (-Z-axis direction) of the bus bar assembly 200 .
- the electrical connection may be performed through a welding process for electrical connection such as laser welding or ultrasonic welding.
- the negative electrode connection part 248 is provided in plurality, and protrudes to a predetermined size on the other side (-X-axis direction) of the layer body 242 , and along the longitudinal direction (Y-axis direction) of the layer body 242 . They may be disposed to be spaced apart from each other by a predetermined distance.
- the plurality of negative electrode connection parts 248 are electrically connected to the negative electrode 170 of the battery cells 150 of the battery cell assembly 100 disposed on the lower side (-Z-axis direction) of the bus bar assembly 200 .
- the electrical connection may be performed through a welding process for electrical connection such as laser welding or ultrasonic welding.
- the cooling unit insertion slit 250 may be provided on the main bus bar 220 and pass through one end 370 of the cooling unit 300 to be described later. Specifically, a plurality of cooling unit insertion slits 250 are provided in the main negative bus bar 220 , and may pass through the cooling water inlet/outlet 370 of the cooling unit 300 , which will be described later. Cooling water inlet/outlet 370 to be described later passes through the cooling unit insertion slit 250 and is disposed to be exposed in front (+X-axis direction) of the main bus bar 220 like a connector 270 to be described later. can
- the pair of connectors 260 and 270 is for connection with an external charging/discharging line, and may be provided as a positive connector 260 and a negative connector 270 .
- the positive connector 260 is provided to protrude from one side (-X-axis direction) of the main positive bus bar 210
- the negative connector 270 is provided at the other side (+) of the main negative bus bar 220 .
- X-axis direction may be provided to protrude.
- the cooling unit 300 serves to cool the battery cell assembly 100 , and is disposed below the bus bar assembly 200 (-Z-axis direction), and the battery cell It may be disposed between the plurality of battery cells 150 in the longitudinal direction (X-axis direction) of the assembly 100 .
- the cooling unit 300 may be provided in plurality.
- the plurality of cooling units 300 may be disposed to face the plurality of battery cells 150 in a width direction (Y-axis direction) of the plurality of battery cell assemblies 100 .
- the plurality of cooling units 300 may be disposed in contact with the facing battery cells 150 to increase cooling performance.
- cooling unit 300 will be described in more detail.
- FIG. 7 is a perspective view of the cooling unit of the battery pack of FIG. 2
- FIG. 8 is a cross-sectional view of the cooling unit of FIG. 7 .
- the cooling unit 300 may include a cooling tube 310 , a cooling passage 350 , and a cooling water inlet/outlet 370 .
- the cooling tube 310 is formed to have a predetermined length along the longitudinal direction (X-axis direction) of the battery cell assembly 100 , is disposed between the plurality of battery cells 150 , and is circulated inside the cooling water to be described later.
- a cooling flow path 350 may be provided for
- the cooling tube 310 may be formed in a shape corresponding to the outer surfaces of the plurality of battery cells 150 facing each other in the width direction (Y-axis direction) of the battery cell assembly 100 .
- the cooling tube 310 includes a plurality of convex portions 312 and concave portions 316 that are convex and concave in the width direction (Y-axis direction) of the battery cell assembly 100 of the battery cell assembly. It may be formed to be alternately arranged along the longitudinal direction (X-axis direction).
- the cooling tube 310 may be disposed to contact the outer surfaces of the plurality of battery cells 150 to further increase the cooling performance of the battery cell assembly 100 .
- the cooling tube 310 may be adhesively fixed to the plurality of battery cells 150 through a filling member 500 or a separate adhesive member, which will be described later.
- the cooling passage 350 circulates cooling water for cooling the battery cell assembly 100 , is provided in the cooling tube 310 , and may be connected in communication with a cooling water inlet/outlet 370 to be described later.
- the cooling passage 350 may include an upper passage 352 , a lower passage 354 , and a connection passage 356 .
- the upper flow path 352 is disposed on the upper side of the cooling tube 310 to be provided near the bus bar assembly 200 , and has a predetermined length along the longitudinal direction (X-axis direction) of the cooling tube 310 . can be formed with The upper flow path 352 may be connected in communication with the cooling water supply port 374 of the cooling water inlet/outlet 370 .
- the upper flow path 352 may be provided in at least one or more plurality. Hereinafter, in the present embodiment, the upper flow path 352 will be described as being provided in plurality in order to secure cooling performance.
- the lower flow path 354 is disposed at a lower side (-Z axis direction) of the cooling tube 310 to be spaced apart from the at least one upper flow path 352 in the longitudinal direction (X axis) of the cooling tube 310 . direction) may be formed to a predetermined length.
- the lower flow path 354 may be connected in communication with the cooling water discharge port 376 of the cooling water inlet/outlet 370 .
- the lower flow path 354 may be provided in at least one or more plurality. Hereinafter, in the present embodiment, a plurality of the lower flow passages 354 will be described in order to secure cooling performance.
- connection flow path 356 includes the at least one upper flow path, in the present embodiment, a plurality of upper flow paths 352 and the at least one lower flow path, and in this embodiment, a plurality of lower flow paths 354 . can connect
- connection flow path 356 may be provided at the other end (+X-axis direction) of the cooling tube 310 opposite to the cooling water inlet/outlet 370 so as to secure the cooling flow path 350 as much as possible. .
- the coolant supplied from the coolant supply port 374 is preferentially supplied to the upper passage 352 disposed near the bus bar assembly 200 . Afterwards, the coolant may flow toward the cooling water discharge port 376 through the connection flow path 356 and the lower flow path 354 .
- the battery cell assembly 100 since cold coolant is preferentially supplied to a region near the bus bar assembly 200 having a relatively higher temperature distribution within the battery pack 10 , the battery cell assembly 100 . cooling performance can be significantly improved.
- the cooling water outlet 370 may be connected to the cooling tube 310 to communicate with the cooling passage 350 of the cooling tube 310 .
- the cooling water inlet/outlet 370 may pass through the cooling unit insertion slot 250 and be connected to communicate with an external cooling line.
- the coolant outlet 370 may be provided on one side (+X-axis direction) of the battery cell assembly 100 in the longitudinal direction (X-axis direction).
- the cooling tube 310 connected to the coolant inlet and outlet 370 is connected to the battery cell assembly 100 in the longitudinal direction (X-axis direction) of the battery cell assembly 100 from the coolant inlet and outlet 370 . It may be formed with a predetermined length toward the other side (-X-axis direction).
- the coolant outlet 370 may include an outlet body 372 , a coolant supply port 374 , and a coolant discharge port 376 .
- the outlet body 372 may be connected to one end (+X-axis direction) of the cooling tube 310 .
- a connection pipe 390 to be described later may be provided on the upper side (+Z-axis direction) of the outlet body 372 .
- the cooling water supply port 374 may be provided in the inlet/outlet body 372 and may be connected in communication with the upper flow path 352 .
- the cooling water supply port 374 may be connected in communication with the external cooling line.
- the cooling water discharge port 376 may be provided in the inlet/outlet body 372 and may be connected in communication with the lower flow path 374 .
- the cooling water discharge port 376 may be disposed to be spaced apart from the cooling water supply port 374 by a predetermined distance, and may be connected in communication with the external cooling line.
- the cell accommodating unit 400 is for securing rigidity of the battery cell assembly 100 and may be arranged in a honeycomb shape.
- the cell accommodating unit 400 may be disposed to at least partially surround the cooling unit 300 and the battery cell assembly 100 .
- the cell accommodating unit 400 may partition the plurality of battery cells 150 together with the cooling unit 300 .
- FIG. 9 is a perspective view of a cell accommodating unit of the battery pack of FIG. 2 ;
- the cell accommodating unit 400 may be provided with a reinforcing structure for reinforcing the rigidity of the battery cell assembly 100 on both outermost sides.
- the reinforcing structure may be provided as a prismatic concave-convex structure protruding to the outside of the cell accommodating unit.
- the reinforcing structure may have a triangular pyramid shape or a trapezoidal shape. That is, in this embodiment, the outermost both sides of the cell accommodating unit 400 provided with the reinforcing structure may be formed in a protruding angular concave-convex structure rather than a curved shape.
- the reinforcing structure may be continuously formed along the longitudinal direction (X-axis direction) of the battery cell assembly 100 . If the outermost surface is formed as a concave curved surface, the thickness of the cell accommodating unit 400 on the outermost side is reduced, which is disadvantageous in terms of securing rigidity. It may be difficult to secure an appropriate resin injection amount from the outer side. In the present embodiment, through the above-described prismatic concavo-convex structure, it is possible to secure an optimal amount of resin injection from the outermost side while securing rigidity.
- the cell accommodating unit 400 is formed to have a predetermined length in the longitudinal direction (X-axis direction) of the battery cell assembly 100 , and at least one accommodating member covers at least one side of the battery cells 150 . (450).
- the at least one accommodating member 450 may have a shape corresponding to the outer surfaces of the facing battery cells 150 to accommodate the plurality of facing battery cells 150 .
- the accommodating member 450 is provided in plurality, and the plurality of accommodating members 450 may be disposed to be spaced apart from each other by a predetermined distance along the width direction (Y-axis direction) of the battery cell assembly 100 .
- the cooling unit 300 may be disposed between the plurality of accommodation members 450 . Specifically, the cooling unit 300 may be disposed between the plurality of accommodating members 450 in the width direction (Y-axis direction) of the battery cell assembly 100 . More specifically, the plurality of cooling tubes 310 (refer to FIG. 7 ) of the cooling unit 300 may be disposed between the plurality of accommodating members 450 .
- the plurality of accommodating members 450 secure rigidity of the battery cell assembly 100 and the cooling unit 300, and occupy a predetermined space within the battery pack 10, thereby providing a filling member (described below) (described below). 500) can be reduced.
- the filling member 500 provided with a silicone resin to be described later, it has a relatively high cost, but when the battery pack 10 is manufactured by reducing the injection amount of the silicone resin through the plurality of accommodating members 450 . More cost competitiveness can be secured.
- Each accommodating member 450 may include a plurality of cell accommodating parts 455 .
- the plurality of cell accommodating parts 455 are for at least partially accommodating the facing battery cells 150 , and when the battery cells 150 are accommodated in the accommodating member 450 , the facing battery cells 150 . ) may be provided in the number corresponding to the position corresponding to the position.
- the plurality of cell accommodating parts 455 have a shape corresponding to the outer surfaces of the battery cells 150 facing each other, and are formed to have a predetermined depth to at least partially accommodate the outer surfaces of the battery cells 150 facing each other.
- the plurality of cell accommodating parts 455 may be concave to have a predetermined depth, and may have a shape corresponding to the outer surfaces of the battery cells 150 facing each other.
- an adhesive is disposed between the battery cells 150 and the cell accommodating parts 455 to increase the fixing force of the battery cells 150 .
- the adhesive may be provided as an adhesive material or adhesive tape having a predetermined adhesive force, and it may be possible to use the filling member 500 to be described later as an adhesive. That is, the adhesive may be provided as a potting resin.
- the plurality of cell accommodating parts 455 may be provided on both sides in the width direction (Y-axis direction).
- the cell accommodating parts 455 provided on both sides of each of the accommodating members 450 in the width direction (Y) may be displaced from each other in the longitudinal direction (X-axis direction) of the accommodating member 450 . This is to secure the maximum number of battery cells 100 provided in a cylindrical shape.
- the filling member 500 is to be filled in the space between the cooling unit 300 and the plurality of battery cells 100 in the height direction (Z-axis direction) of the battery pack 10 .
- the filling member 500 is indicated by a hexahedral dotted line for convenience of understanding, and the filling member 500 includes the cooling unit 300 and the plurality of battery cells 100 . All of the space in between can be filled.
- the filling member 500 prevents thermal runaway of the battery cells 100 , fixes the battery cells 100 more stably, and increases the heat dissipation efficiency of the plurality of battery cells 150 .
- the cooling performance of the battery cells 150 may be further increased.
- the filling member 500 may be provided with potting resin.
- the potting resin may be formed by injecting a thin resin material into the plurality of battery cells 150 and curing the resin material.
- the injection of the resin material may be performed at a room temperature of about 15 to 25 degrees Celsius in order to prevent thermal damage to the plurality of battery cells 150 .
- the filling member 500 may be provided with a silicone resin.
- the present invention is not limited thereto, and the filling member 500 may be made of other resin materials capable of improving fixing and heat dissipation efficiency of the battery cells 150 in addition to the silicon resin.
- the filling member 500 covers a portion of the battery cells 100 that is not in contact with the cooling tube 310 , thereby guiding the thermal equilibrium of the battery cells 100 , so that the battery cells It is possible to prevent local degradation of the battery cells 100 by preventing a cooling deviation of 100 . In addition, the safety of the battery cells 100 may also be remarkably improved by preventing the local degradation of the battery cells 100 .
- the filling member 500 is an insulation that prevents electricity from flowing to the adjacent battery cells 100 when damage due to an abnormal situation occurs in at least one specific battery cell 100 among the plurality of battery cells 100 . can play a role.
- the filling member 500 may include a material having high specific heat performance. Accordingly, the filling member 500 increases the thermal mass to delay the temperature rise of the battery cells 100 even in situations such as rapid charging and discharging of the battery cells 100 , so that the battery cells 100 . to prevent sudden temperature rise.
- the filling member 500 may include a glass bubble.
- the glass bubble may lower the specific gravity of the filling member 500 to increase the energy density with respect to the weight.
- the filling member 500 may include a material having high heat resistance. Accordingly, the filling member 500 can effectively prevent thermal runaway toward adjacent battery cells when a thermal event due to overheating occurs in at least one specific battery cell 100 among the plurality of battery cells 100 . have.
- the filling member 500 may include a material having a high flame retardant performance. Accordingly, the filling member 500 may minimize the risk of fire when a thermal event due to overheating occurs in at least one specific battery cell 100 among the plurality of battery cells 100 .
- the filling member 500 may be filled in the bus bar assembly 200 in addition to the battery cells 150 .
- the battery cells 150 may be filled in the bus bar assembly 200 to at least partially cover the bus bar assembly 200 .
- the filling member 500 is disposed in the vertical direction (Z-axis direction) of the battery cell assembly 100 without a space or a separation space between the bus bar assembly 200 and the battery cells 100 .
- a space between the bus bar assembly 200 and the battery cells 100 may be continuously filled.
- the filling member 500 may more stably fix the plurality of battery cells 150 and the bus bar assembly 200 .
- the filling member 500 effectively blocks the flame and heat toward adjacent battery cells 100 and the bus bar assembly 200 side even if a flame occurs on the upper side of the battery cells 100 according to a thermal event, etc. can give
- the filling member 500 according to the present embodiment is continuously filled without interruption in the battery cells 100 and the bus bar assembly 200, the battery cells 100 and the bus bar assembly ( 200), the cooling performance of the battery pack 10 can be remarkably improved by implementing even heat distribution without generating a heat dispersion deviation.
- the filling member 500 may be filled to cover all of the cell accommodating unit 400 to be described later.
- the filling member 500 may be continuously filled without interruption in the battery cells 100 , the bus bar assembly 200 , and the cell accommodating unit 400 . Accordingly, the cooling performance of the battery pack 10 may be further improved.
- the filling member 500 may be filled to cover the reinforcing structure of the cell accommodating unit 400 .
- the filling member 500 may be filled to at least partially cover the cell support part 600 , which will be described later.
- the filling member 500 may be continuously filled without interruption in the battery cells 100 , the bus bar assembly 200 , the cooling unit 300 , and the cell accommodating unit 400 . Accordingly, the cooling performance of the battery pack 10 may be further improved.
- the filling member 500 is continuous without interruption to the battery cells 100 , the bus bar assembly 200 , the cooling unit 300 , the cell accommodating unit 400 , and the cell support unit 600 . can be filled with Accordingly, the cooling performance of the battery pack 10 may be further improved.
- the filling member 500 is filled to cover all the spaces between the battery cells 100 , when a thermal event of a specific battery cell occurs, thermal runaway may be caused to the adjacent battery cells 100 . can be effectively prevented.
- the battery pack 10 may further include a cell support unit 600 .
- the cell support part 600 is provided below the cell accommodation unit 400 , and may support the battery cell assembly 100 and the cooling unit 300 .
- the cell support unit 600 may support the battery cell assembly 100 together with the cell accommodation unit 400 .
- the cell support unit 600 may support bottom portions of the battery cells 150
- the cell accommodation unit 400 may support side portions of the battery cells 150 .
- the cell support unit 600 may be disposed perpendicular to the cell accommodation unit 400 . Specifically, the cell support part 600 may be vertically coupled to the cell accommodating unit 400 , and rigidity of the battery pack 10 may be secured together with the cell accommodating unit 400 .
- FIG. 10 is a perspective view of a cell support part of the battery pack of FIG. 2
- FIG. 11 is a view for explaining a support rib according to another embodiment of the cell support part of FIG. 10 .
- the cell support part 600 may include a cell mounting part 610 and a support rib 630 .
- the plurality of battery cells 150 may be seated or inserted into the cell mounting unit 610 .
- the cell mounting part 610 is formed with an opening of a predetermined size, and may be provided in plurality to correspond to the number of the plurality of battery cells 150 .
- the opening may have a size that does not exceed the diameter of the battery cell 150 .
- the cell mounting part 610 guides the support of the battery cell 150 of the battery cell 150 while guiding the support of the battery cell 150 more smoothly than when gas is discharged through the venting part provided at the bottom of the battery cell 150 through the opening. and can guide rapid gas discharge.
- the support rib 630 is provided on the upper surface of the cell support unit 600 , and may protrude to a predetermined height to support the bottom of the cell accommodation unit 400 .
- the support rib 630 may be formed to have a predetermined length along the longitudinal direction (X-axis direction) of the battery cell assembly 100 .
- the support ribs 630 are provided in plurality, and the cooling unit 300 , specifically, the cooling tube 310 of the cooling unit 300 may be disposed between the plurality of support ribs 630 . have. Accordingly, the cooling tube 310 may be seated between the support ribs 630 on the upper surface of the cell support part 600 . Here, the bottom surface of the cooling tube 310 may be disposed to be stepped with the support ribs 630 . Accordingly, the support ribs 630 can effectively prevent the cooling tube 310 from being separated from the support ribs 630 even when a flow such as shaking occurs in the cooling tube 310 .
- a bottom of the cell accommodating unit 400 may be seated on the plurality of support ribs 630 .
- An adhesive member such as a thermal adhesive may be applied to the upper surface of the plurality of support ribs 630 to more stably support the cell accommodating unit 400 .
- the plurality of support ribs 650 of the cell support unit 605 may be provided with an insertion groove 655 having a predetermined depth into which the bottom of the cell accommodation unit 400 is inserted.
- the insertion groove 655 may be provided to have a predetermined depth inside the support ribs 650 protruding upward (+Z-axis direction) of the cell support part 605 , and the cell accommodating unit 400 . It may have a size that the bottom of the can be inserted.
- the cell receiving unit 400 is fixed to the cell support 605, it is inserted into the insertion groove 655 of the support rib 650 to be more stably fixed to the cell support 605. have.
- FIG. 12 is a view for explaining the formation of a pack case structure through a filling member of the battery pack of FIG. 1 .
- the manufacturer, etc. injects and applies the filling member 500 through the resin injection device I, and through the filling member 500 provided with the resin material, the battery pack 10 ) can form a pack case.
- the filling member 500 may be the silicon resin.
- the battery cell assembly 100 , the bus bar assembly 200 , the cooling unit 300 , and the cell accommodating unit 400 so as to more smoothly inject and apply the filling member 500 .
- the cell support unit 600 may be temporarily mounted on a form (not shown) for guiding the injection of the filling member 400 after being assembled with each other.
- the formwork may have a shape corresponding to the shape of the pack case, and one end of the positive connector 260 , the negative connector 270 , the coolant inlet 370 , and the cell support unit 600 . It may have a shape that exposes a component connected to an external device or the like to the outside, such as the like.
- the filling member 500 When the filling member 500 is cured in the mold, the filling member 500 may form a pack case that forms the exterior of the battery pack 10, and then the manufacturer, etc. can be removed
- the pack case is formed through the filling member 500 provided with the potting resin, compared to when the pack case is formed as a complex assembly of a plurality of plates as in the prior art, the battery
- the assembly process of the pack 10 can be simplified, and the cost competitiveness can also be secured by significantly lowering the manufacturing cost.
- the size of the entire battery pack 10 can be reduced compared to the cell frame structure composed of a conventional assembly of a plurality of plates. Energy density can also be significantly increased.
- FIG. 13 is a view for explaining a cell accommodating unit according to another embodiment of the present invention
- FIG. 14 is an enlarged view of a main part of the cell accommodating unit of FIG. 13 .
- the cell accommodating unit 405 according to the present embodiment is similar to the cell accommodating unit 400 of the previous embodiment, redundant descriptions of components substantially the same as or similar to those of the previous embodiment will be omitted, and hereinafter, the previous embodiment Let's focus on the differences from the example.
- the cell accommodating unit 405 may include a plurality of accommodating members 460 .
- the plurality of accommodating members 460 may include a plurality of cell accommodating parts 465 as in the previous embodiment. This has been described in detail in the above-described cell accommodating unit 400 , and a redundant description thereof will be omitted below.
- the accommodating members 460 disposed on both outermost sides may include guide jaws 467 .
- the guide jaws 467 may be provided to protrude to a predetermined height at both upper ends in the longitudinal direction (X-axis direction) of the accommodating members 460 disposed on the outermost both sides. When the assembly of the accommodating members 460 is completed, the guide jaws 467 may form a predetermined edge in the longitudinal direction (X-axis direction) of the cell accommodating unit 405 .
- the guide jaws 467 increase the injection accuracy of the filling member 500 when the filling member 500 is injected, which will be described below, and can also increase the injection process efficiency.
- FIG. 15 is a view for explaining the formation of a pack case structure through the filling member of the battery pack provided with the cell accommodating unit of FIG. 13 .
- the guide jaw 467 is the filling member 500 . injection accuracy can be improved.
- the guide jaw 467 is provided at a predetermined height on the edge of the upper surface of the cell accommodating unit 405 in the longitudinal direction of the cell accommodating unit 405 to have a higher height than the upper surface of the bus bar assembly 200 .
- can In the absence of the guide jaw 467 it may be difficult for the operator or the like to ascertain an appropriate injection amount of the filling member 500 sufficient to cover the bus bar assembly 200 during the injection.
- the filling member 500 for covering the bus bar assembly 200 when the filling member 500 for covering the bus bar assembly 200 is injected, the filling member 500 only needs to be injected as much as a predetermined height guided through the guide jaw 467 described above, It is possible to significantly increase the injection accuracy and injection efficiency of the operator. In addition, the operator, etc., through the guide jaws 467, can more easily check the injection finish time of the filling member (500).
- the operator, etc., during the injection process of the filling member 500 can increase the injection accuracy, process time, and also shorten.
- the injection amount of the filling member 500 can also be optimally secured, so that the manufacturing cost of the battery pack 10 can be lowered, thereby significantly improving the cost competitiveness.
- 16 is a view for explaining a vehicle according to an embodiment of the present invention.
- the vehicle 1 may be provided as an electric vehicle or a hybrid vehicle, and may include, as an energy source, at least one battery pack 10 of the previous embodiment.
- the above-described battery pack 10 is provided in a compact structure having a high energy density, it is easy to implement a modular structure of the plurality of battery packs 10 when mounted in the vehicle 1 , , it is possible to secure a relatively high degree of freedom in mounting even in various internal space shapes of the vehicle 1 .
- a battery pack 10 capable of securing rigidity while increasing energy density and a vehicle 1 including the same.
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- Aviation & Aerospace Engineering (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
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- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
Claims (40)
- 배터리 팩에 있어서,복수 개의 배터리 셀들을 포함하는 배터리 셀 어셈블리;상기 배터리 셀 어셈블리의 일측에 배치되는 버스바 어셈블리;상기 복수 개의 배터리 셀들 사이에 배치되는 쿨링 유닛; 및상기 쿨링 유닛과 함께 상기 복수 개의 배터리 셀들을 구획하는 셀 수용 유닛을 포함하는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 쿨링 유닛과 상기 복수 개의 배터리 셀들 사이 공간에 채워지는 충진부재를 포함하는 것을 특징으로 하는 배터리 팩.
- 제2항에 있어서,상기 충진부재는,상기 버스바 어셈블리를 적어도 부분적으로 덮을 수 있게 상기 버스바 어셈블리에 채워진 것을 특징으로 하는 배터리 팩.
- 제2항에 있어서,상기 충진부재는,상기 배터리 셀 어셈블리 및 상기 셀 수용 유닛을 모두 덮을 수 있게 채워진 것을 특징으로 하는 배터리 팩.
- 제2항에 있어서,상기 충진부재는,상기 배터리 셀 어셈블리의 상하 방향에서, 상기 버스바 어셈블리와 상기 배터리 셀들 사이에 연속적으로 채워진 것을 특징으로 하는 배터리 팩.
- 제2항에 있어서,상기 충진부재는,포팅 레진으로 구비되는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 셀 수용 유닛은,상기 배터리 셀 어셈블리의 길이 방향을 따라 소정 길이로 형성되며, 상기 배터리 셀들의 적어도 일측면을 커버하는 적어도 하나의 수용부재를 포함하는 것을 특징으로 하는 배터리 팩.
- 제7항에 있어서,상기 적어도 하나의 수용부재는,마주 하는 복수 개의 배터리 셀들의 외면에 대응되는 형상을 갖는 것을 특징으로 하는 배터리 팩.
- 제7항에 있어서,상기 수용부재는,복수 개로 구비되며,상기 복수 개의 수용부재는,상기 배터리 셀 어셈블리의 폭 방향을 따라 상호 소정 거리 이격 배치되는 것을 특징으로 하는 배터리 팩.
- 제9항에 있어서,각각의 수용부재는,마주 하는 배터리 셀들을 수용하는 복수 개의 셀 수용부를 포함하는 것을 특징으로 하는 배터리 팩.
- 제10항에 있어서,상기 복수 개의 셀 수용부는,소정 깊이를 갖도록 오목하게 형성된 것을 특징으로 하는 배터리 팩.
- 제10항에 있어서,상기 복수 개의 셀 수용부는,마주 하는 배터리 셀들의 외측면에 대응되는 형상을 갖는 것을 특징으로 하는 배터리 팩.
- 제10항에 있어서,상기 배터리 셀들과 상기 셀 수용부들 사이에는, 접착제가 구비되는 것을 특징으로 하는 배터리 팩.
- 제13항에 있어서,상기 접착제는,포팅 레진으로 마련되는 것을 특징으로 하는 것을 특징으로 하는 배터리 팩.
- 제9항에 있어서,상기 쿨링 유닛은,상기 배터리 셀 어셈블리의 폭 방향에서, 상기 복수 개의 수용부재 사이 사이에 배치되는 것을 특징으로 하는 배터리 팩.
- 제15항에 있어서,상기 쿨링 유닛은,상기 배터리 셀 어셈블리의 길이 방향을 따라 소정 길이로 형성되고, 상기 복수 개의 배터리 셀들 사이에 배치되며, 내부에 냉각수 순환을 위한 냉각 유로가 마련되는 복수 개의 냉각 튜브; 및상기 복수 개의 냉각 튜브의 냉각 유로와 연통되게 상기 복수 개의 냉각 튜브와 연결되는 냉각수 유출입부를 포함하는 것을 특징으로 하는 배터리 팩.
- 제16항에 있어서,상기 복수 개의 냉각 튜브는,상기 복수 개의 수용부재 사이 사이에 배치되는 것을 특징으로 하는 배터리 팩.
- 제16항에 있어서,상기 냉각 유로는,상기 버스바 어셈블리 가까이에 구비되는 어퍼 유로;상기 어퍼 유로와 이격되게 배치되는 로어 유로; 및상기 어퍼 유로와 상기 로어 유로를 연결하는 연결 유로를 포함하는 것을 특징으로 하는 배터리 팩.
- 제18항에 있어서,상기 연결 유로는,상기 냉각수 유출입부의 반대편에 구비되는 것을 특징으로 하는 배터리 팩.
- 제18항에 있어서,상기 냉각수 유출입부는,상기 어퍼 유로와 연결되는 냉각수 공급 포트; 및상기 로어 유로와 연결되는 냉각수 배출 포트를 포함하는 것을 특징으로 하는 배터리 팩.
- 제18항에 있어서,상기 어퍼 유로와 상기 로어 유로는,복수 개로 구비되는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 셀 수용 유닛과 결합되며, 상기 배터리 셀 어셈블리 및 상기 쿨링 유닛을 지지하는 셀 지지부를 포함하는 것을 특징으로 하는 배터리 팩.
- 제22항에 있어서,상기 셀 지지부에는,상기 셀 수용 유닛을 지지할 수 있게 소정 높이로 돌출되는 지지 리브가 형성되는 것을 특징으로 하는 배터리 팩.
- 제23항에 있어서,상기 지지 리브는,복수 개로 구비되며,복수 개의 지지 리브 사이에는,상기 쿨링 유닛이 배치되는 것을 특징으로 하는 배터리 팩.
- 제23항에 있어서,상기 지지 리브에는,상기 셀 수용 유닛의 저부가 삽입되는 소정 깊이의 삽입 그루브가 구비되는 것을 특징으로 하는 배터리 팩.
- 제22항에 있어서,상기 셀 지지부는,상기 셀 수용 유닛에 수직하게 배치되는 것을 특징으로 하는 배터리 팩.
- 제22항에 있어서,상기 셀 수용 유닛은, 상기 배터리 셀들의 측면부를 지지하며,상기 셀 지지부는, 상기 배터리 셀들의 저부를 지지하는 것을 특징으로 하는 배터리 팩.
- 제22항에 있어서,상기 셀 지지부에는,상기 배터리 셀들이 장착되는 셀 장착부가 구비되는 것을 특징으로 하는 배터리 팩.
- 제28항에 있어서,상기 셀 장착부는,소정 크기의 개구로 형성되는 것을 특징으로 하는 배터리 팩.
- 제29항에 있어서,상기 개구는,상기 배터리 셀의 직경을 넘지 않는 크기를 갖는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 셀 수용 유닛은,허니컴 형상으로 배열되는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 버스바 어셈블리는,상기 배터리 셀 어셈블리의 상측에 배치되는 것을 특징으로 하는 배터리 팩.
- 제1항에 따른 적어도 하나의 배터리 팩을 포함하는 것을 특징으로 하는 자동차.
- 배터리 팩에 있어서,복수 개의 배터리 셀들을 포함하는 배터리 셀 어셈블리;상호 결합되어 상기 복수 개의 배터리 셀들을 지지하는 셀 수용 유닛과 셀 지지부; 및상기 배터리 셀 어셈블리 및 상기 셀 수용 유닛을 덮을 수 있게 채워지는 충진부재를 포함하는 것을 특징으로 하는 배터리 팩.
- 제34항에 있어서,상기 셀 지지부는,상기 셀 수용 유닛과 수직을 이루게 결합되는 것을 특징으로 하는 배터리 팩.
- 제34항에 있어서,상기 셀 수용 유닛은,최외곽 양측에 상기 배터리 셀 어셈블리의 강성을 보강하기 위한 보강 구조가 구비되는 것을 특징으로 하는 배터리 팩.
- 제36항에 있어서,상기 보강 구조는,상기 셀 수용 유닛의 외측으로 돌출된 각형 요철 구조로 마련되는 것을 특징으로 하는 배터리 팩.
- 제36항에 있어서,상기 보강 구조는,상기 배터리 셀 어셈블리의 길이 방향을 따라 연속적으로 형성되는 것을 특징으로 하는 배터리 팩.
- 제36항에 있어서,상기 보강 구조는,삼각뿔 형상 또는 사다리꼴 형상을 갖는 것을 특징으로 하는 배터리 팩.
- 제34항에 있어서,상기 충진부재는,상기 보강 구조를 덮을 수 있게 채워지는 것을 특징으로 하는 배터리 팩.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/014,324 US12362416B2 (en) | 2021-03-04 | 2022-03-04 | Battery pack and vehicle comprising same |
| JP2022577375A JP7549050B2 (ja) | 2021-03-04 | 2022-03-04 | バッテリーパック及びそれを含む自動車 |
| EP22763644.6A EP4184686B1 (en) | 2021-03-04 | 2022-03-04 | Battery pack and vehicle comprising same |
| EP25192334.8A EP4618254A3 (en) | 2021-03-04 | 2022-03-04 | Battery pack and vehicle comprising same |
| US19/237,536 US20250309427A1 (en) | 2021-03-04 | 2025-06-13 | Battery pack and vehicle comprising same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20210029091 | 2021-03-04 | ||
| KR10-2021-0029091 | 2021-03-04 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US18/014,324 A-371-Of-International US12362416B2 (en) | 2021-03-04 | 2022-03-04 | Battery pack and vehicle comprising same |
| US19/237,536 Continuation US20250309427A1 (en) | 2021-03-04 | 2025-06-13 | Battery pack and vehicle comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022186663A1 true WO2022186663A1 (ko) | 2022-09-09 |
Family
ID=83067826
Family Applications (1)
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| PCT/KR2022/003122 Ceased WO2022186663A1 (ko) | 2021-03-04 | 2022-03-04 | 배터리 팩 및 이를 포함하는 자동차 |
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|---|---|
| US (2) | US12362416B2 (ko) |
| EP (2) | EP4184686B1 (ko) |
| JP (1) | JP7549050B2 (ko) |
| KR (1) | KR102754816B1 (ko) |
| CN (2) | CN217983570U (ko) |
| WO (1) | WO2022186663A1 (ko) |
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| EP4531169A4 (en) * | 2022-12-30 | 2025-12-03 | Eve Power Co Ltd | INSULATED BATTERY BLOCK AND THERMAL MANAGEMENT PROCESS |
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| CN217983570U (zh) * | 2021-03-04 | 2022-12-06 | 株式会社Lg新能源 | 电池组以及包含该电池组的汽车 |
| EP4386938A4 (en) * | 2021-12-24 | 2025-04-02 | LG Energy Solution, Ltd. | Battery pack and vehicle comprising same |
| KR20240057657A (ko) * | 2022-10-25 | 2024-05-03 | 주식회사 엘지에너지솔루션 | 배터리 팩, 배터리 팩의 제조 방법 및 자동차 |
| KR102730253B1 (ko) * | 2022-12-19 | 2024-11-14 | 주식회사 엘지에너지솔루션 | 배터리 모듈, 이를 포함하는 배터리 팩 및 자동차 |
| KR102730351B1 (ko) * | 2022-12-19 | 2024-11-14 | 주식회사 엘지에너지솔루션 | 배터리 모듈, 이를 포함하는 배터리 팩 및 자동차 |
| US20250372767A1 (en) * | 2022-12-22 | 2025-12-04 | Lg Energy Solution, Ltd. | Battery pack and vehicle including same |
| KR20240142129A (ko) * | 2023-03-21 | 2024-09-30 | 삼성에스디아이 주식회사 | 배터리 팩 |
| WO2024237494A1 (ko) * | 2023-05-16 | 2024-11-21 | 주식회사 엘지에너지솔루션 | 배터리 모듈 제조 장치 및 제조 방법 |
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| KR20250040389A (ko) * | 2023-09-15 | 2025-03-24 | 주식회사 엘지에너지솔루션 | 배터리 팩 및 이를 포함하는 자동차 |
| KR20250046019A (ko) * | 2023-09-26 | 2025-04-02 | 주식회사 엘지에너지솔루션 | 배터리 팩 및 이를 포함하는 자동차 |
| KR20250046034A (ko) * | 2023-09-26 | 2025-04-02 | 주식회사 엘지에너지솔루션 | 배터리 팩 및 이를 포함하는 자동차 |
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- 2022-03-04 EP EP22763644.6A patent/EP4184686B1/en active Active
- 2022-03-04 KR KR1020220028371A patent/KR102754816B1/ko active Active
- 2022-03-04 CN CN202210212705.4A patent/CN115020901A/zh active Pending
- 2022-03-04 WO PCT/KR2022/003122 patent/WO2022186663A1/ko not_active Ceased
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- 2022-03-04 JP JP2022577375A patent/JP7549050B2/ja active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| KR102754816B1 (ko) | 2025-01-22 |
| US12362416B2 (en) | 2025-07-15 |
| KR20220125786A (ko) | 2022-09-14 |
| EP4184686B1 (en) | 2025-09-03 |
| CN115020901A (zh) | 2022-09-06 |
| EP4618254A2 (en) | 2025-09-17 |
| JP7549050B2 (ja) | 2024-09-10 |
| EP4618254A3 (en) | 2025-11-19 |
| US20230246275A1 (en) | 2023-08-03 |
| EP4184686A1 (en) | 2023-05-24 |
| US20250309427A1 (en) | 2025-10-02 |
| KR20250016350A (ko) | 2025-02-03 |
| CN217983570U (zh) | 2022-12-06 |
| JP2023530327A (ja) | 2023-07-14 |
| EP4184686A4 (en) | 2024-07-24 |
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