WO2020145530A1 - 내부 플레이트를 포함한 배터리 모듈 - Google Patents
내부 플레이트를 포함한 배터리 모듈 Download PDFInfo
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- WO2020145530A1 WO2020145530A1 PCT/KR2019/017600 KR2019017600W WO2020145530A1 WO 2020145530 A1 WO2020145530 A1 WO 2020145530A1 KR 2019017600 W KR2019017600 W KR 2019017600W WO 2020145530 A1 WO2020145530 A1 WO 2020145530A1
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- module
- battery module
- battery
- wall
- module case
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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
- 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
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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
- 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
- H01M50/233—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
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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
- H01M50/244—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
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
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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
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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
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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
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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
- H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
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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
- H01M2200/00—Safety devices for primary or secondary batteries
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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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- 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
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
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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 module including an inner plate, and more particularly, to a battery module that prevents ignition or explosion between secondary cells, which are internal components, and improves cooling efficiency.
- lithium secondary batteries are free of charge and discharge because they have little memory effect compared to nickel-based secondary batteries. The self-discharge rate is very low and it is spotlighted for its high energy density.
- the lithium secondary battery mainly uses a lithium-based oxide and a carbon material as a positive electrode active material and a negative electrode active material, respectively.
- the lithium secondary battery includes an electrode assembly in which a positive electrode plate and a negative electrode plate each coated with a positive electrode active material and a negative electrode active material are disposed with a separator interposed therebetween, and an exterior material for sealing and storing the electrode assembly together with an electrolyte, that is, a battery pouch exterior material.
- secondary batteries are widely used not only in small devices such as portable electronic devices, but also in middle- and large-sized devices such as automobiles and power storage devices.
- a large number of secondary batteries are electrically connected to increase capacity and output.
- a pouch type secondary battery is frequently used in such medium-to-large-sized devices due to the advantage of easy lamination.
- a plurality of secondary batteries may ignite or explode due to specific factors (eg, malfunction or configuration failure), or an accident may occur in which the secondary batteries ignite or explode due to external impact.
- a battery module is disposed so that a plurality of secondary batteries are very close to each other, even when one secondary battery is ignited or exploded, flame or heat is easily transferred to another adjacent secondary battery, resulting in secondary explosion or ignition. There was an easy problem.
- a battery module having a plurality of secondary batteries arranged in such a compact manner can easily and quickly accumulate heat inside the battery module, thereby shortening the life of the battery module. Accordingly, in the prior art, it is very important to effectively discharge the internal heat of the battery module to the outside.
- an object of the present invention is to provide a battery module that prevents ignition or explosion between secondary cells, which is an internal component, and improves cooling efficiency.
- a plurality of can-type secondary batteries arranged in a horizontally laid form
- a bus bar at least partially made of an electrically conductive material to electrically connect the plurality of can-type secondary batteries
- An empty space is formed inside to accommodate the plurality of can-type secondary batteries, and at least two ribs formed to surround the empty space and at least two ribs protruding outward from the outer wall are provided.
- a module case constructed by being stacked in the lying direction of the can-type secondary battery;
- It includes an inner plate which is interposed between the two or more module cases and is erected in a direction perpendicular to the stacking direction of the module cases.
- the inner plate can be positioned to contact the protruding end of the rib.
- a fixing groove inserted in the inner direction may be formed so that the distal end of the rib is inserted and fixed.
- the inner plate has a concavo-convex structure formed by bending to protrude in a horizontal direction, and the concavo-convex structure can be inserted between the two or more ribs.
- bus bar can be inserted between one rib and another adjacent rib.
- a curved groove may be formed in the inner direction at the end of the rib connected to the outer wall of the module case.
- the bus bar may be fixed in position by inserting one end into the curved groove of the rib and the other end into the curved groove of the other rib.
- the module case may include a bumper portion having a spaced apart from the outer wall and spaced a predetermined distance from the outer surface of the outer wall so as to absorb external shock applied to the battery module.
- It may have a plate-shaped portion that is bent and extended in a direction corresponding to the outer wall of the module case from an end portion in the extension direction of the extension portion and formed with a linear rib.
- bus bar may be located between the plate-shaped portion of the bumper portion and the outer wall of the module case.
- the battery pack according to the present invention for achieving the above object includes at least one battery module.
- the vehicle according to the present invention for achieving the above object includes at least one or more of the battery pack.
- the battery module when the battery module is charged and discharged, heat generated in the secondary battery is transferred to the ribs of the module case and the inner plate contacting the ribs, and discharged to the outside through the air contacting the inner plate can do. Accordingly, it is possible to improve the cooling efficiency of the battery module.
- the battery module can block the plurality of can-type secondary cells accommodated in different module cases so as not to be affected by flame or gas, so that the stability of the battery module Can effectively improve
- the inner plate is easily fixed between two or more module cases, The manufacturing process can be done easily.
- the cooling efficiency of the battery module can be further increased by effectively increasing the contact area between the fixing groove and the rib.
- the uneven structure formed on the inner plate is inserted between two or more ribs, so that the inner plate is easily fixed between two or more module cases, so that the manufacturing process can be facilitated.
- the cooling efficiency of the battery module can be further increased by effectively increasing the contact area between the uneven structure and the rib.
- the bus bar is inserted between one rib and another adjacent rib, so that the process of accurately positioning the bus bar on the mounting portion of the module case can be facilitated.
- the bus bar can be prevented from flowing in the front-rear direction, so that the welding process can be performed quickly and completely.
- the module case is provided with a bumper portion configured to absorb external shock applied to the battery module, and when an external shock occurs in the battery module, the bumper portion absorbs the shock preferentially and incorporates a secondary battery. Can protect. Accordingly, it is possible to increase the stability of the battery module.
- the bumper portion of the module case covers a portion of the bus bar that is easily exposed in the front-rear direction, thereby preventing contact or collision with external conductive materials and maintaining electrical insulation from the outside. I can do it. Accordingly, when an external shock occurs, a secondary accident due to electric leakage of the battery module can be prevented.
- the bumper portion and the auxiliary bumper portion can more effectively absorb the external impact applied to the battery module. Accordingly, the secondary battery embedded in the battery module is protected from external shocks, thereby effectively preventing fire or explosion.
- FIG. 1 is a perspective view schematically showing a battery module according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view schematically showing a state in which some components of a battery module according to an embodiment of the present invention are separated.
- FIG 3 is a cross-sectional view schematically showing the configuration of a can-type secondary battery according to an embodiment of the present invention.
- FIG. 4 is a partial front view schematically showing an enlarged area of region C of the battery module of FIG. 1.
- FIG. 5 is a partial front view schematically showing some components and an inner plate of a battery module according to another embodiment of the present invention.
- FIG. 6 is a cross-sectional side view schematically showing an enlarged cut portion of a battery module according to another embodiment of the present invention.
- FIG. 7 is a right side view schematically showing a battery module according to another embodiment of the present invention.
- FIG. 8 is a partial cross-sectional view schematically showing an enlarged portion of a battery module cut along the line A-A' in FIG. 7.
- FIG. 9 is a perspective view schematically showing a state of a module case which is a part of a battery module according to an embodiment of the present invention.
- FIG. 10 is a left perspective view schematically showing a state of a module case which is a part of a battery module according to an embodiment of the present invention.
- FIG. 11 is an exploded perspective view schematically showing a state in which some components of a battery module according to an embodiment of the present invention are separated.
- FIG. 1 is a perspective view schematically showing a battery module according to an embodiment of the present invention.
- 2 is an exploded perspective view schematically showing a state in which some components of a battery module according to an embodiment of the present invention are separated.
- Figure 3 is a cross-sectional view schematically showing the configuration of a can-type secondary battery according to an embodiment of the present invention.
- the battery module 200 includes a plurality of can-type secondary cells 100, at least one bus bar 220, and at least two or more module cases 210 , And an inner plate 230.
- the can-type secondary battery 100 may include an electrode assembly 110, a battery can 112, and a cap assembly 113.
- the electrode assembly 110 may have a structure in which a separator is interposed between the positive electrode plate and the negative electrode plate, and the positive electrode tab 114 is attached to the positive electrode plate to be connected to the cap assembly 113, and the negative electrode plate has a negative electrode tab. 115 may be attached and connected to the bottom of the battery can 112.
- the battery can 112 may be formed with an empty space therein to accommodate the electrode assembly 110. Particularly, the battery can 112 may be formed in a cylindrical or square shape and an open top. In addition, the battery can 112 may be made of a metal material such as steel or aluminum to secure rigidity and the like. And, the battery can 112, the negative electrode tab is attached to the bottom, as well as the lower portion of the battery can 112, the battery can 112 itself can function as a negative electrode terminal.
- the cap assembly 113 is coupled to the top opening of the battery can 112 to seal the open end of the battery can 112.
- the cap assembly 113 may have a shape such as a circular shape or a square shape according to the shape of the battery can 112, and includes sub-components such as a top cap (C1), a safety vent (C2), and a gasket (C3). can do.
- the top cap (C1) located on the top of the cap assembly, may be configured in a protruding form in the upper direction.
- a top cap (C1) can function as a positive electrode terminal in the can-type secondary battery 100.
- the top cap C1 may be electrically connected to another secondary battery 100, a load, or a charging device through an external device, such as a bus bar 220.
- the top cap (C1) for example, may be formed of a metal material such as stainless steel or aluminum.
- the safety vent C2 may be configured to be deformed when the internal pressure of the secondary battery 100, that is, the internal pressure of the battery can 112 increases to a certain level or more.
- the gasket (C3) may be made of a material having electrical insulation so that the rim of the top cap (C1) and the safety vent (C2) can be insulated from the battery can (112).
- the cap assembly 113 may further include a current blocking member C4.
- the current blocking member (C4) is also called a CID (Current Interrupt Device), when the internal pressure of the battery increases due to gas generation, the shape of the safety vent (C2) is reversed, between the safety vent (C2) and the current blocking member (C4) The contact of the wire is cut off, or the current blocking member C4 is damaged, so that the electrical connection between the safety vent C2 and the electrode assembly 110 may be blocked.
- CID Current Interrupt Device
- the configuration of such a can type secondary battery 100 is well known to those skilled in the art at the time of filing of the present invention, and thus detailed description thereof will be omitted.
- the battery module 200 according to the present invention is not limited to the configuration of a specific can-type secondary battery 100. That is, various types of secondary cells known at the time of filing of the present invention can be employed in the battery module 200 according to the present invention.
- the can-type secondary battery 100 of FIG. 3 is illustrated based on the cylindrical secondary battery 100, but the square secondary battery 100 may be applied to the battery module 200 according to the present invention.
- the plurality of can-type secondary batteries 100 may be provided in a form arranged in the front-rear direction (Y direction) and the vertical direction (Z direction).
- the plurality of can-type secondary batteries 100 may be configured in a form arranged in the front-rear direction.
- the plurality of can-type secondary batteries 100 may be configured in a form arranged in the vertical direction.
- the plurality of can-type secondary batteries 100 may be arranged in a cylindrical battery can (112 in FIG. 3) in which tubular portions face each other.
- the plurality of can-type secondary cells 100 may be configured in a form lying in a horizontal direction.
- the horizontal direction means a direction parallel to the ground. That is, as illustrated in FIG. 2, each can-type secondary battery 100 may be configured to be elongated in a left-right direction (X-axis direction of the drawing). At this time, some of the entire can-type secondary battery 100, when viewed in the F direction of FIG. 1, the positive electrode terminal 111a and the negative electrode terminal 111b may be located in the left and right directions, respectively. In addition, the rest, the positive electrode terminal 111a and the negative electrode terminal 111b of each can-type secondary battery 100 may be located in the right and left directions, respectively.
- the terms indicating the direction before, after, left, right, up, down described in this specification may vary depending on the position of the observer or the placed form of the object.
- the directions of the front, rear, left, right, up, and down are divided and shown based on when viewed in the F direction.
- the height of the battery module 200 can be configured to be low. That is, when the can-type secondary battery 100 is laid down, the battery module 200 having a shorter vertical height may be configured. Therefore, it is easy to design the battery module 200 having a low height.
- the bus bar 220 may electrically connect between the plurality of can-type secondary batteries 100, such as all of the secondary batteries 100, or some of the secondary batteries 100.
- the bus bar 220 at least a portion may be made of an electrically conductive material.
- the bus bar 220 may be made of a metal material such as copper, aluminum, nickel, or the like.
- the bus bar 220 may be provided with a body portion 222 and the connecting portion 224.
- the body portion 222 of the bus bar 220 may be configured in a plate shape. Moreover, the bus bar 220 may be configured in the form of a metal plate to secure rigidity and electrical conductivity. In particular, the main body portion 222 may be configured in a form erected in the vertical direction (Z-axis direction of the drawing) along the electrode terminals 111 of the plurality of can-type secondary batteries 100.
- a plurality of can-type secondary batteries 100 are laid down in the left-right direction (X-axis direction of the drawing) in the front-rear direction (Y-axis direction of the drawing) and/or the vertical direction (Z-axis direction of the drawing)
- the electrode terminals 111 of the various secondary batteries 100 may be configured in a form arranged in parallel in the front-rear direction and the vertical direction.
- the main body portion 222 may be configured in a form erected flat in the front-rear direction or the up-down direction as a plate shape according to the arrangement direction of the electrode terminals 111 of the plurality of secondary batteries 100.
- the main body portion 222 of the bus bar 220 may be configured in a form in which the upper end portion is bent in the inner direction.
- the upper end of the body portion 222 of the bus bar 220 may be a portion for sensing a voltage by a sensing member (not shown).
- a contact hole H3 for connection or contact of the sensing member may be formed at a bent portion of the bus bar 220.
- the upper end portion of the main body portion 222 may be configured to be bent about 90 degrees toward the inner direction.
- connection unit 224 may be configured to contact (join) the electrode terminals 111 of the plurality of can-type secondary batteries 100 so as to be electrically connected between the plurality of can-type secondary batteries 100.
- a plurality of the connection portions 224 may be formed in a shape extending from the main body portion 222 in the front-rear direction (Y direction).
- the connection part 224 may contact the electrode terminals 111 of some of the secondary batteries 100 among all the secondary batteries 100 to electrically connect the plurality of secondary batteries 100.
- connection part 224 may contact the same polarity of the plurality of can-type secondary batteries 100 and connect them in parallel.
- connection part 224 may contact the electrode terminals 111 of some of the secondary batteries 100 among all the secondary batteries 100 and electrically and parallelly connect them therebetween.
- the battery module 200 may include a connection bus bar 225.
- the connecting bus bar 225 may be configured to electrically connect between the two or more bus bars 220.
- the battery module 200 may be provided with three connecting bus bars 225.
- the connecting bus bar 225 may be configured such that one side is connected to one bus bar 220 and the other side is connected to another bus bar 220.
- the battery module 200 may include an external bus bar 227.
- the external bus bar 227 may serve as a final external input/output electrical terminal of the battery module 200.
- the external bus bar 227 may be configured to contact a portion of the bus bar 220 (223 in FIG. 11).
- the battery module 200 may be provided with two external bus bars 227 that serve as external external input/output positive terminal and external input/output negative terminal respectively.
- the module case 210 may be configured by stacking at least two or more of the can-type secondary battery 100 in a lying direction (X direction).
- X direction a lying direction
- the battery module 200 when viewed in the F direction, may be configured to stack another module case 210 on the left or right side of one module case 210. have.
- the stacking direction is not necessarily limited to one direction, and may be an up-down direction (Z direction) according to the lying direction of the can-type secondary battery 100.
- the module case 210 may include an outer wall 210c.
- the outer wall may be formed to surround an empty space formed therein to accommodate the plurality of can-type secondary batteries 100.
- the outer wall 210c of the module case 210 is a first outer wall formed in front, rear, up, down, left, and right directions to form an inner space ( 210c1), a second outer wall 210c2, a third outer wall 210c3, a fourth outer wall 210c4, a fifth outer wall 210c5, and a sixth outer wall 210c6.
- the outer wall 210c6 may be formed to connect the front, rear, top, bottom, left, and right sides of the module case 210 in a planar manner.
- the module case 210 may be provided with at least a portion of the electrically insulating polymer material.
- the polymer material may be polyvinyl chloride.
- the module case 210 is provided with an outer wall 210c, thereby effectively protecting the plurality of secondary batteries 100 accommodated therein from external impact.
- FIG. 4 is a partial front view schematically showing an enlarged area of region C of the battery module of FIG. 1.
- At least two ribs R1 formed by protruding from the outer wall 210c of the module case 210 in an outer direction (left-right direction, X-direction) may be provided. That is, the ribs R1 may be protruded from the outer wall 210c to secure a space between one module case 210 and the other module case 210.
- a plurality of ribs R1 may be formed on the right outer wall 210c6 of one module case 210.
- the plurality of ribs (R1) may be in the form protruding in the right direction from the right outer wall (210c6).
- a plurality of ribs R1 may be formed on the left outer wall 210c5 of the other module case 210.
- the ribs R1 of the other module case 210 may be protruded in the left direction from the left outer wall 210c5.
- the ribs R1 of the other module case 210 may be formed at positions corresponding to the ribs R1 of one module case 210.
- the battery module 200 may further include an inner plate 230 and an insulating sheet 290.
- the inner plate 230 may be positioned to be interposed between the two or more module cases 210.
- the inner plate 230 may be configured in a form erected in a direction perpendicular to the stacking direction of the module case 210 (up and down direction). That is, the inner plate 230 may be in the form of a plate extending in the vertical direction (Z direction) and the front-rear direction (X direction).
- the inner plate 230 may include a plurality of can-type secondary batteries 100 accommodated in other module cases 210. To prevent the flame or gas from being affected. To this end, the inner plate 230 may have a size to cover the horizontal side of the plurality of can-type secondary batteries 100.
- the inner plate 230 is a direction in which the plurality of can-type secondary batteries 100 are laid (X direction), that is, secondary stored in one module case 210.
- the battery 100 and the secondary battery 100 accommodated in the other module case 210 may be disposed at corresponding positions.
- both sides of the inner plate 230 in the horizontal direction (X direction) are positioned to face each of the right outer wall 210c6 of one module case 210 and the left outer wall 210c5 of the other module case 210, respectively.
- the inner plate 230 may have a size capable of covering the entire plurality of can-type secondary batteries 100 accommodated in the module case 210.
- the inner plate 230 may be positioned to contact the protruding end of the rib (R1). That is, the inner plate 230 may have a shape extending along the distal end of the rib R1 in the vertical direction (Z direction) and the front-rear direction (Y direction).
- one inner plate 230 includes a rib R1 formed in one module case 210 and a distal end of each rib R1 formed in the other module case 210. It can be positioned to contact with.
- the heat generated in the secondary battery 100 during charging and discharging of the battery module 200 is in contact with the rib R1 of the module case 210 and the rib R1 It is transferred to the plate 230 and can be discharged to the outside through the air contacting the inner plate 230. Accordingly, the cooling efficiency of the battery module 200 can be improved.
- the inner plate 230 in contact with the rib R1 may form a gas discharge passage T1.
- the gas discharge passage (T1), the left outer wall (210c5) or the right outer wall (210c6) of the module case 210, and the left outer wall (210c5) or the inner plate facing the right outer wall (210c6) It may be made of one side in the horizontal direction of (230).
- the rib (R1) of the module case 210, the inner plate 230 so that a space where the gas generated between the outer wall 210c and the inner plate 230 of the module case 210 can be moved is formed ) May have a length protruding in the left or right direction so as to be spaced apart from the outer wall 210c by a predetermined distance.
- the ends of the gas discharge passage T1 may be outer circumferential portions (front end and rear end) of the outer wall 210c in the front-rear direction of the module case 210.
- the gas generated from the plurality of can-type secondary batteries 100 is disposed along the gas discharge passage T1 formed between the outer wall 210c of the module case 210 and one side of the inner plate 230. It may be moved to the front end and the rear end of the outer wall 210c of the module case 210, and may be discharged outside the battery module 200.
- an inner plate 230 is interposed between the two module cases 210.
- the battery module 200 may be formed with a gas discharge passage T1 composed of one side surface of the right outer wall 210c6 of the module case 210 on the right side and the inner plate 230.
- the battery module 200 may be formed with a gas discharge passage T1 composed of a left outer wall 210c5 of the right module case 210 and a right side of the inner plate 230.
- the insulating sheet 290 may be provided on the outer surface of the bus bar 220. That is, the insulating sheet 290 may be configured to prevent the bus bar 220 from contacting with an external conductive material. Furthermore, the insulating sheet 290 may include an electrically insulating material. In addition, the insulating material may be, for example, a silicone-based polymer (resin). In addition, a plurality of openings (O2 in FIG. 2) may be formed in the insulating sheet 290 so that the rib R1 can penetrate the insulating sheet 290.
- FIG. 5 is a partial front view schematically showing some components and an inner plate of a battery module according to another embodiment of the present invention.
- the inner plate is shown cut in the vertical direction, and the rest of the components are schematically shown from the front.
- the inner plate 230B of FIG. 5 may further have a fixing groove G1 inserted in the body inner direction on the outer surface.
- the fixing groove G1 may have an indented size such that the distal end of the rib R1 is inserted and fixed.
- the fixing groove G1 may be formed as many as the number of the ribs R1.
- a plurality of fixing grooves G1 may be formed in the inner plate 230B.
- the fixing groove G1 may be formed at a position corresponding to the rib R1.
- the inner plate 230B may be formed by a number of ribs of a fixing groove G1 inserted from the left to the right in the body and a fixing groove G1 inserted from the right to the left in the body.
- FIG. 6 is a cross-sectional side view schematically showing an enlarged cut portion of a battery module according to another embodiment of the present invention.
- the inner plate 230C of FIG. 6 may further have an uneven structure K1 having a structure that is bent to protrude in a horizontal direction.
- the uneven structure K1 when the inner plate 230C is erected in the vertical direction, the bent portion in the left and right direction, the bent portion in the upper direction again, the bent portion in the left and right direction, and the upper direction again Can have a bent part.
- the uneven structure K1 may have a shape inserted between the two or more ribs R1. At this time, the length in the vertical direction of the uneven structure K1 may be formed in a size corresponding to the distance between the ribs R1 arranged in the vertical direction.
- the inner plate 230C may have an uneven structure K1 protruding to the left and an uneven structure K1 protruding to the right.
- the uneven structure K1 may have a shape inserted between two adjacent ribs R1 in the vertical direction.
- the uneven structure (K1) formed on the inner plate (230C) is inserted between the two or more ribs (R1), the inner plate (230C) is the two or more module case (210) ), and the manufacturing process can be easily performed.
- the cooling efficiency of the battery module 200 can be further increased by effectively increasing the contact area between the uneven structure K1 and the rib R1.
- the single module case 210 may be configured to accommodate a portion of the entire secondary battery 100 by forming an empty space therein.
- the other module case 210, an empty space is formed therein may be configured to accommodate the remaining portion of all the secondary battery 100.
- each of the one module case 210 and the other module case 210 is configured such that a space for accommodating each secondary battery 100 is separated from each other by a hollow H1. Can be.
- the hollow H1 may be configured to have a space for accommodating each secondary battery 100, as shown in FIG. 6.
- the other module case 210 may be configured to be coupled to one side of the horizontal direction (X direction) of one module case 210, as shown in FIG. 2.
- the one module case 210 and the other module case 210 may be coupled to each other by a male and female coupling structure (not shown), or may be bolted (not shown).
- the one module case 210 and the other module case 210 may be connected to each other without separate members for fixing each other.
- a mounting portion 217 for mounting the bus bar 220 may be formed in each of the one module case 210 and the other module case 210.
- a mounting portion 217 for mounting the bus bar 220 may be formed in each of the one module case 210 and the other module case 210.
- the mounting portion 217 may be provided on the left and right outer walls 210c of each of the one module case 210 and the other module case 210.
- a mounting portion 217 may be provided on each of the left outer wall 210c5 and the right outer wall 210c6 of each of the one module case 210 and the other module case 210. have.
- a mounting space in which four bus bars 220 can be mounted may be formed in each of the mounting units 217.
- the present invention the fixing of the plurality of secondary cells 100 and the fixing of the bus bar 220 can be made at a time by the module case 210.
- the hollow H1 formed in the inner space of the module case 210 is in the form of a can-type secondary battery 100 It may be configured in a cylindrical shape to correspond to.
- each hollow H1 of one module case 210 and another module case 210 penetrates the module case 210 in the longitudinal direction (X-axis direction of the drawing) of the secondary battery 100. It can be configured in the form.
- the hollow H1 for accommodating the secondary battery 100 in the module case 210 is formed in a form that penetrates in the left-right direction (X-axis direction), and the secondary battery located inside the module case 210
- the electrode terminal 111 of the (100) may be configured to be exposed to the outside in the left and right direction of the module case 210. Therefore, in this case, the bus bar 220 located on the outside may be in direct contact with the electrode terminal 111 of the secondary battery 100 exposed to the outside.
- the module case 210 may include a first frame 212a and a second frame 212b.
- the first frame 212a and the second frame 212b may be configured to meet and combine with each other in one side and the other side in the left-right direction (X direction).
- X direction left-right direction
- the first frame 212a when viewed in the F direction of FIG. 1, the first frame 212a is disposed on the left side of the plurality of secondary batteries 100 and the left portion of the plurality of secondary batteries 100 Can accommodate.
- the second frame 212b may be located on the right side of the plurality of secondary batteries 100 to accommodate the right portion of the plurality of secondary batteries 100.
- the first frame 212a and the second frame 212b are configured to cover one side and the other side of the plurality of secondary batteries 100, respectively, so as to cover the outer surfaces of the can-type secondary batteries 100 as a whole.
- Can For example, when the can-type secondary battery 100 is a cylindrical secondary battery 100, the first frame 212a and the second frame 212b cover the outer surface of the cylindrical battery as a whole, thereby the secondary battery 100
- the side of the up and down direction of the battery module 200 may be configured to not be exposed to the outside.
- the first frame 212a may be disposed on the left side of the plurality of secondary batteries 100 to accommodate the left portion of the plurality of secondary batteries 100.
- the second frame 212b may be located on the right side of the plurality of secondary batteries 100 to accommodate the right portion of the plurality of secondary batteries 100.
- the insulating property of the secondary battery 100 is improved, and the secondary battery from external physical and chemical elements (100) can be protected.
- the second frame 212b may be configured to be connected to one side in the horizontal direction of the first frame 212a, as shown in FIG. 2.
- the first frame 212a and the second frame 212b may be fixed in a male and female coupling structure.
- the coupling groove 212a1 is formed in the first frame 212a
- the coupling protrusion 212b1 is formed in the second frame 212b, and may be coupled to each other.
- the other module case 210 may include a first frame 212a and a second frame 212b.
- first frame 212a and the second frame 212b are compared with the first frame 212a and the second frame 212b of one module case 210 described above, the first frame 212a ) And the second frame 212b may have the same configuration, except that the positions are reversed.
- the front and rear positions of the other module case 210 are rotated and changed, the same arrangement as the first frame 212a and the second frame 212b of the one module case 210 is performed. Have.
- FIG. 7 is a right side view schematically showing a battery module according to another embodiment of the present invention.
- FIG. 8 is a partial cross-sectional view schematically showing an enlarged portion of a battery module cut along the line A-A' in FIG. 7.
- the module case 210B disclosed in FIG. 7 unlike the module case 210 of FIG. 1, has ribs R1 in each of the hollow H1 into which the secondary battery 100 is inserted. ) May be formed in plural. That is, in the module case 210 of FIG. 1, the hollows arranged in the front-rear direction are alternately formed with ribs R1, but the module case 210B of FIG. 7 is continuous for each hollow H1 in which the secondary battery is accommodated. In this way, the ribs R1 are formed.
- the bus bar 220 may be inserted between one rib R1 and another rib R1 adjacent in the front-rear direction. Specifically, one end and the other end in the front-rear direction of the bus bar 220 may be configured to contact each of the other ribs R1 adjacent to one rib R1 arranged in the front-rear direction. For example, as shown in FIG. 7, the bus bar 220 has a front end contacting the rear end of one rib R1, and the other end of the bus bar 220 adjacent to the other rib R1. ).
- the bus bar 220 is inserted between the ribs R1 formed in one hollow and the other rib adjacent to the rib R1, so that the module case of the busbar 220
- the process of accurately positioning the mounting portion 217 of the 210 may be easy.
- the bus bar 220 may be prevented from flowing in the front-rear direction, thereby welding It can help make the process quick and complete.
- a curved groove G2 introduced in the inner direction of the body may be formed at the end of the rib R1 connected to the outer wall 210c of the module case 210.
- the curved groove G2 of the rib R1 may be formed at an end portion in a direction in which the bus bar 220 is located.
- one end (front end) is inserted into the curved groove (G2) of the rib (R1) and the other end (rear end) is inserted into the curved groove (G2) of the other rib (R1).
- Position can be fixed.
- the bus bar 220 may be interposed between two ribs R1 arranged in the front-rear direction to be mounted on the mounting unit 217. At this time, a curved groove G2 may be formed in each of the two ribs R1. And, the bus bar 220, the front end is inserted into the curved groove (G2) of the rib (R1) and the rear end is inserted into the curved groove (G2) of the other rib (R1) can be fixed in position.
- the bus bar 220 can be fixed so that both ends are inserted into the curved groove G2 of the rib R1 so that the bus bar 220 does not flow. Accordingly, without a separate fixing member for fixing the bus bar 220 to the mounting portion 217, it is possible to manufacture, thereby reducing manufacturing cost and manufacturing time. In addition, in the welding process between the electrode terminals 111 and the bus bars 220 of the plurality of secondary batteries 100, it is possible to prevent the bus bars 220 from flowing, so that the welding process can be performed quickly and reliably. Can.
- FIG. 9 is a perspective view schematically showing a state of a module case which is a part of a battery module according to an embodiment of the present invention.
- FIG. 10 is a left perspective view schematically showing a state of a module case which is a part of a battery module according to an embodiment of the present invention.
- the module case 210 may be provided with a bumper portion 240 to absorb external shock applied to the battery module 200.
- the bumper portion 240 may be formed on the outer wall 210c of the module case 210.
- the bumper part 240 may be formed on each of the front outer wall 210c1 and the rear outer wall 210c2 of the module case 210.
- the module case 210 is provided with a bumper portion 240 configured to absorb external shock applied to the battery module 200, thereby providing an external shock to the battery module 200.
- the bumper unit 240 may absorb the shock, thereby protecting the built-in secondary battery 100. Accordingly, stability of the battery module 200 may be increased.
- the bumper part 240 may be formed to protrude in an outward direction from the outer surface of the outer wall 210c. More specifically, the bumper portion 240 may have an extended portion 242 and a plate-shaped portion 244. Here, the extended portion 242 may be in the form of protruding and extending outward from the outer wall 210c of the module case 210.
- the extended portion 242 may be configured to space the plate-shaped portion 244 apart from the outer wall 210c of the module case 210 by a predetermined distance.
- the bumper part 240 secures a separation distance from the outer wall 210c of the module case 210, so that external shock applied to the battery module 200 is not directly transmitted to the built-in secondary battery 100.
- the bumper part 240 and the outer wall 210c preferentially collide with each other, thereby causing the bumper part 240 to absorb more external shock.
- the plate-shaped portion 244 may have a shape that extends from an end portion in the extending direction of the extended portion 242 in a direction corresponding to the outer wall 210c of the module case 210.
- the plate-shaped portion 244 may be formed with a linear rib (R2) on the outer surface of the plate.
- the linear ribs R2 are grids in which linear ribs R2 extending in the left-right direction (X direction) and the vertical direction (Z direction) intersect each other. It can take the form.
- the plate-shaped portion 244 may have a curved surface such that the center of the body protrudes convexly in the outer direction on the outer surface. Furthermore, the plate-shaped portion 244 may have a plate shape in which the center of the body is convexly curved in an outward direction. For example, as shown in FIG. 9, the plate-shaped portion 244 may also be a plate-shaped convexly curved body.
- the bumper portion 240 is provided with an extended portion 242 to secure a separation distance and a plate-shaped portion 244 formed with a linear rib R2, thereby providing the bumper portion 240 A can effectively absorb external shock applied to the battery module 200. Accordingly, the secondary battery 100 embedded in the battery module 200 is protected from external shocks, thereby effectively preventing fire or explosion.
- FIG. 11 is an exploded perspective view schematically showing a state in which some components of a battery module according to an embodiment of the present invention are separated.
- the bus bar 220a mounted in one module case 210 is connected to the bus bar 220b mounted in the other module case 210 to expand the portion ( 223).
- the extension portion 223 may be formed to be bent and extended in a vertical direction from the body portion 222 of the bus bar 220.
- a coupling hole H4 for fastening a bolt may be formed in the extension 223.
- the expansion unit 223 may be coupled to the connection bus bar 220 to electrically connect a plurality of secondary batteries 100 mounted in each of the two module cases 210.
- each of the two bus bars 220a and 220b provided in the two module cases 210 may further include an extension 223 unlike other bus bars 220.
- the extension portion 223 may be in a form bent in a left or right direction from the body portion 222 of the bus bar 220.
- three coupling holes H4 for fastening bolts may be formed in the extension 223.
- the extension portion 223 of the bus bar 220 may be located between the plate-shaped portion 244 of the bumper portion 240 and the outer wall 210c of the module case 210.
- the expansion portion 223 of the bus bar 220 may be located between the plate-shaped portion 244 of the bumper portion 240 and the outer wall 210c of the module case 210.
- the expansion portions 223 of the two bus bars 220 include a plate-shaped portion 244 of the bumper portion 240 and a front outer wall 210c1 of the module case 210. ).
- the bumper part 240 of the module case 210 covers one part of the bus bar 220 that is easily exposed in the front-rear direction, thereby contacting or colliding with an external conductive material. It can prevent and maintain electrical insulation from the outside. Accordingly, when an external shock occurs, a secondary accident due to electric leakage of the battery module 200 can be prevented.
- an auxiliary bumper part 246 may be further formed in the module case 210.
- the auxiliary bumper portion 246 may be further formed between the bumper portion 240 and the outer wall 210c of the module case 210. That is, the auxiliary bumper part 246 may be located in a spaced apart space between the bumper part 240 and the module case 210 outer wall 210c.
- the auxiliary bumper portion 246 may have a plate-shaped portion 244 on which a linear rib R3 protruding in the inner direction is formed.
- eight auxiliary bumper portions 246 located inside the four bumper portions 240 may be formed on the front outer wall 210c of the module case 210.
- the auxiliary bumper portion 246 by further forming the auxiliary bumper portion 246 in the spaced apart between the bumper portion 240 and the module case 210 outer wall 210c, the bumper portion 240 ) And the auxiliary bumper part 246 can more effectively absorb external impact applied to the battery module 200. Accordingly, the secondary battery 100 embedded in the battery module 200 is protected from external shocks, thereby effectively preventing fire or explosion.
- a battery pack (not shown) may include at least one battery module 200. Further, the battery pack may further include various devices (not shown) for controlling charging and discharging of the battery module 200, for example, a battery management system (BMS), a current sensor, and a fuse.
- BMS battery management system
- an electronic device includes at least one battery module 200 described above.
- the electronic device may further include a device housing (not shown) provided with a storage space for accommodating the battery module 200 and a display unit that allows a user to check a state of charge of the battery module 200.
- the battery pack according to an embodiment of the present invention may be included in an automobile such as an electric vehicle or a hybrid vehicle. That is, a vehicle according to an embodiment of the present invention may be equipped with a battery pack including at least one battery module according to an embodiment of the present invention described above in a vehicle body.
- battery module 100 can-type secondary battery
- 111, 111a, 111b electrode terminal, positive terminal, negative terminal
- 212a, 212b first frame, second frame
- busbar connecting busbar, external busbar
- the present invention relates to a battery module including a plurality of can-type secondary cells. Further, the present invention can be used in a battery pack including such a battery module and an industry related to automobiles including the same.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Aviation & Aerospace Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims (11)
- 수평 방향으로 눕혀진 형태로 배열된 복수의 캔형 이차 전지;상기 복수의 캔형 이차 전지 사이를 전기적으로 연결하도록 적어도 일부분이 전기 전도성 재질로 구성된 버스바;상기 복수의 캔형 이차 전지를 삽입 수용하도록 내부에 빈 공간이 형성되고, 상기 내부의 빈 공간을 둘러싸도록 형성된 외벽 및 상기 외벽으로부터 외측 방향으로 돌출되어 형성된 적어도 둘 이상의 리브를 구비하고, 상기 캔형 이차 전지의 눕혀진 방향으로 적층되도록 구성된 적어도 둘 이상의 모듈 케이스; 및상기 둘 이상의 모듈 케이스 사이에 개재되어 상기 모듈 케이스의 적층 방향에 수직한 방향으로 세워진 형태로 구성된 내부 플레이트를 포함하는 것을 특징으로 하는 배터리 모듈.
- 제1항에 있어서,상기 내부 플레이트는 상기 리브의 돌출된 말단부에 접촉하도록 위치된 것을 특징으로 하는 배터리 모듈.
- 제2항에 있어서,상기 내부 플레이트의 외면에는, 상기 리브의 말단부가 삽입 고정되도록 내부 방향으로 내입된 고정홈이 형성된 것을 특징으로 하는 배터리 모듈.
- 제2항에 있어서,상기 내부 플레이트는 수평 방향으로 돌출되도록 절곡되어 형성된 요철 구조를 가지고,상기 요철 구조는 상기 둘 이상의 리브 사이에 삽입된 것을 특징으로 하는 배터리 모듈.
- 제1항에 있어서,상기 버스바는 하나의 리브와 인접한 다른 리브 사이에 삽입된 것을 특징으로 하는 배터리 모듈.
- 제5항에 있어서,상기 모듈 케이스의 외벽과 연결된 상기 리브의 단부에는 내부 방향으로 내입된 만곡홈이 형성되고,상기 버스바는, 일단부가 상기 리브의 만곡홈에 삽입되고 타단부가 다른 리브의 만곡홈에 삽입되어 위치 고정된 것을 특징으로 하는 배터리 모듈.
- 제1항에 있어서,상기 모듈 케이스는, 상기 배터리 모듈에 가해진 외부 충격을 흡수하도록 상기 외벽의 외측면으로부터 외측 방향으로 돌출 형성되고 상기 외벽과 소정 거리로 이격된 이격 공간을 가진 범퍼부를 구비한 것을 특징으로 하는 배터리 모듈.
- 제7항에 있어서,상기 범퍼부는,상기 모듈 케이스의 외벽으로부터 돌출 연장된 연장 부위; 및상기 연장 부위의 연장 방향의 단부로부터 상기 모듈 케이스의 외벽과 대응되는 방향으로 절곡 연장되며 선형의 리브가 형성된 판형 부위를 가진 것을 특징으로 하는 배터리 모듈.
- 제8항에 있어서,상기 버스바의 적어도 일부위는 상기 범퍼부의 판형 부위와 상기 모듈 케이스의 외벽 사이에 위치된 것을 특징으로 하는 배터리 모듈.
- 제1항 내지 제9항 중 어느 한 항에 따른 배터리 모듈을 적어도 하나 이상 포함하는 것을 특징으로 하는 배터리 팩.
- 제10항에 따른 배터리 팩을 적어도 하나 이상 포함하는 것을 특징으로 하는 자동차.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES19908676T ES3040635T3 (en) | 2019-01-10 | 2019-12-12 | Battery module including internal plate |
| EP19908676.0A EP3770992B1 (en) | 2019-01-10 | 2019-12-12 | Battery module including internal plate |
| JP2020547349A JP7101794B2 (ja) | 2019-01-10 | 2019-12-12 | 内部プレートを含むバッテリーモジュール |
| US16/982,989 US12266777B2 (en) | 2019-01-10 | 2019-12-12 | Battery module including internal plate |
| CN201980020687.6A CN111937180B (zh) | 2019-01-10 | 2019-12-12 | 包括内部板的电池模块、包括该电池模块的电池组及车辆 |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020190003389A KR102352296B1 (ko) | 2019-01-10 | 2019-01-10 | 내부 플레이트를 포함한 배터리 모듈 |
| KR10-2019-0003389 | 2019-01-10 |
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| WO2020145530A1 true WO2020145530A1 (ko) | 2020-07-16 |
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| US (1) | US12266777B2 (ko) |
| EP (1) | EP3770992B1 (ko) |
| JP (1) | JP7101794B2 (ko) |
| KR (1) | KR102352296B1 (ko) |
| CN (1) | CN111937180B (ko) |
| ES (1) | ES3040635T3 (ko) |
| WO (1) | WO2020145530A1 (ko) |
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| JP2023544400A (ja) * | 2020-10-01 | 2023-10-23 | ビ-エイイ-・システムズ・コントロールズ・インコーポレイテッド | リチウムイオン電池パックにおける熱暴走伝播の軽減 |
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| KR102302450B1 (ko) * | 2021-05-18 | 2021-09-16 | 김도형 | 배터리팩 |
| US20240250366A1 (en) * | 2022-01-24 | 2024-07-25 | Lg Energy Solution, Ltd. | Battery module with improved impact resistance and safety and battery pack including the same |
| KR20240153151A (ko) * | 2023-04-14 | 2024-10-22 | 삼성에스디아이 주식회사 | 이차전지 모듈 |
| KR20240153153A (ko) * | 2023-04-14 | 2024-10-22 | 삼성에스디아이 주식회사 | 이차전지 모듈 |
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- 2019-12-12 CN CN201980020687.6A patent/CN111937180B/zh active Active
- 2019-12-12 WO PCT/KR2019/017600 patent/WO2020145530A1/ko not_active Ceased
- 2019-12-12 US US16/982,989 patent/US12266777B2/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| KR102352296B1 (ko) | 2022-01-14 |
| EP3770992B1 (en) | 2025-08-20 |
| US12266777B2 (en) | 2025-04-01 |
| EP3770992A1 (en) | 2021-01-27 |
| US20210021007A1 (en) | 2021-01-21 |
| JP7101794B2 (ja) | 2022-07-15 |
| JP2021516852A (ja) | 2021-07-08 |
| CN111937180A (zh) | 2020-11-13 |
| CN111937180B (zh) | 2024-01-02 |
| KR20200086957A (ko) | 2020-07-20 |
| EP3770992A4 (en) | 2021-08-25 |
| ES3040635T3 (en) | 2025-11-03 |
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