WO2022244992A1 - 배터리 모듈 및 이를 포함하는 배터리 팩 - Google Patents
배터리 모듈 및 이를 포함하는 배터리 팩 Download PDFInfo
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- WO2022244992A1 WO2022244992A1 PCT/KR2022/005522 KR2022005522W WO2022244992A1 WO 2022244992 A1 WO2022244992 A1 WO 2022244992A1 KR 2022005522 W KR2022005522 W KR 2022005522W WO 2022244992 A1 WO2022244992 A1 WO 2022244992A1
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- WIPO (PCT)
- Prior art keywords
- battery
- cooling plate
- battery module
- battery cell
- cooling
- Prior art date
Links
- 238000001816 cooling Methods 0.000 claims abstract description 109
- 239000000110 cooling liquid Substances 0.000 claims description 23
- 238000004146 energy storage Methods 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000002826 coolant Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 230000002159 abnormal effect Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 238000007789 sealing Methods 0.000 description 6
- 238000013022 venting Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000013021 overheating Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000652 nickel hydride Inorganic materials 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
- H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
-
- 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
- H01M10/647—Prismatic or flat cells, e.g. pouch cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a battery module and a battery pack including the same.
- Secondary batteries which are highly applicable to each product group and have electrical characteristics such as high energy density, are used not only in portable devices but also in electric vehicles (EVs) or hybrid electric vehicles (HEVs) driven by an electrical driving source. It is universally applied. These secondary batteries have not only the primary advantage of significantly reducing the use of fossil fuels, but also the advantage of not generating any by-products due to the use of energy, so they are attracting attention as a new energy source for eco-friendliness and energy efficiency improvement.
- EVs electric vehicles
- HEVs hybrid electric vehicles
- a battery pack may be configured by connecting a plurality of battery cells in series.
- a battery pack may be configured by connecting a plurality of battery cells in parallel according to a 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 and/or charge/discharge capacity.
- a battery pack is configured by connecting a plurality of battery cells in series and/or parallel
- a battery module including at least one battery cell is first configured, and other components are configured using the at least one battery module.
- a method of configuring a battery pack and/or a battery rack by adding a battery is common.
- the present invention has been devised to solve the above problems, a battery module having a structure capable of effectively suppressing the occurrence of fire even when high-temperature gas or sparks are generated inside due to abnormal heat generation, and a battery pack including the same, It aims to provide automobiles and energy storage systems.
- Another object of the present invention is to provide a battery module having improved cooling performance, a battery pack including the same, an automobile and an energy storage system.
- a battery module for achieving the above object includes a battery cell assembly including a plurality of battery cells; a module housing having an inner space accommodating at least one or more of the battery cell assemblies; and a cooling unit located on one side of the battery cell assembly.
- the cooling unit includes: a second cooling plate spaced apart from the first cooling plate and disposed closer to the battery cell assembly than the first cooling plate to form a first cooling plate and a cooling liquid flow path; Including, at least a portion of the second cooling plate is provided with a pattern portion.
- the module housing may include a side cover and a lower cover, and the cooling unit may cover an upper portion of the battery cell assembly.
- the pattern part may be formed on at least one of both surfaces of the second cooling plate.
- the pattern part may include at least one groove formed to reduce the thickness of the second cooling plate.
- the first cooling plate may include at least one recess concavely formed in a direction toward the second cooling plate.
- the recess may contact the second cooling plate.
- the recess may have a shape extending along a longitudinal direction or a width direction of the battery module.
- the first cooling plate may include a plurality of recesses, and the plurality of recesses may be spaced apart from each other.
- the battery cell may be a pouch type cell having a pair of electrode leads.
- the battery cell may be placed upright on the lower cover such that the pair of electrode leads extend in a direction toward the side cover.
- the second cooling plate may be made of aluminum.
- the present invention provides a battery pack comprising at least one battery module according to the above-described embodiments.
- the present invention provides a vehicle characterized in that it includes at least one battery pack according to the above-described embodiment.
- the present invention provides an energy storage system comprising at least one battery pack according to the above-described embodiment.
- occurrence of fire in the battery module can be effectively prevented.
- a battery module capable of ensuring safety when an abnormal situation occurs due to overheating of a battery cell
- a battery pack including the battery module, a vehicle, and an energy storage system.
- a battery module having improved cooling performance it is possible to provide a battery pack including the battery module, a vehicle, and an energy storage system.
- the present invention may have various other effects, which will be described in each embodiment, or descriptions of effects that can be easily inferred by those skilled in the art will be omitted.
- FIG. 1 is an exploded perspective view of a battery module according to an embodiment of the present invention.
- FIG. 2 is a perspective view of a battery module according to an embodiment of the present invention.
- FIG. 3 is a diagram showing an exemplary form of a battery cell applied to a battery module according to an embodiment of the present invention.
- FIG. 4 is a cross-sectional view showing a cross section taken along line A-A' in FIG. 2 .
- FIG. 5 is a diagram for explaining a groove according to another embodiment of the present invention.
- FIG. 6 is a diagram for explaining a groove according to another embodiment of the present invention.
- FIG. 7 and 8 are diagrams for explaining a process in which cooling liquid is introduced into an accommodation space of a battery cell assembly as venting occurs in some battery cells.
- FIG. 9 is a diagram for explaining a battery pack according to an embodiment of the present invention.
- FIG. 10 is a diagram for explaining a vehicle according to an embodiment of the present invention.
- FIG. 1 is an exploded perspective view of a battery module according to an embodiment of the present invention
- FIG. 2 is a perspective view of a battery module according to an embodiment of the present invention.
- a battery module 1 includes at least one battery cell assembly 10 , a module housing 20 and a cooling unit 30 .
- the battery cell assembly 10 includes a plurality of battery cells 11 .
- the plurality of battery cells 11 may be secondary batteries.
- the battery cell 11 includes an electrode assembly and a battery case accommodating the electrode assembly.
- the battery cell 11 included in the battery cell assembly 10 may be, for example, a pouch type battery cell 11 .
- this does not limit the type of the battery cell 11, and other types of battery cells, such as cylindrical cells or prismatic cells, may also be employed in the battery cell assembly 10 of the present invention.
- FIG. 3 is a diagram showing an exemplary form of a battery cell applied to a battery module according to an embodiment of the present invention.
- the battery cell 11 includes an electrode assembly (not shown), a pouch case 12 accommodating the electrode assembly, and a pair of electrode leads 13 connected to the electrode assembly and drawn out of the pouch case 12.
- the pouch case 12 includes an accommodating portion 12a accommodating the electrode assembly and a sealing portion 12b formed around the accommodating portion 12a.
- the pair of electrode leads 13 are coupled to electrode tabs (not shown) provided in the electrode assembly and are drawn out of the pouch case 12 through the sealing portion 12b.
- the pair of electrode leads 13 extend along the longitudinal direction of the battery cell 11 (direction parallel to the X-axis).
- the pair of electrode leads 13 may be pulled out in the same direction or opposite directions.
- the battery cell 11 in which the pair of electrode leads 13 are drawn in opposite directions is called a bidirectional cell, and the battery cell 11 in which the pair of electrode leads 13 are drawn in the same direction is called a unidirectional cell. It is said.
- bidirectional cells are shown in the drawing of the present invention, this is exemplary, and it goes without saying that unidirectional cells may be applied to the battery module 1 according to one embodiment of the present invention.
- each battery cell 11 has a pair of electrode leads 13 extending along a direction (parallel to the X-axis) toward the side cover 21 to be described later. It can be placed upright on the lower cover 22 to do. Also, the plurality of battery cells 11 may be stacked along the longitudinal direction (direction parallel to the Y-axis) of the battery module 1 .
- the pouch-type battery cell 11 is vented from the side when abnormal heat generation occurs and the internal pressure increases accordingly. That is, the battery cell 11 is formed in the width direction (Z-axis) of the battery cell 11 rather than the sealing portion 12b formed in the direction (parallel to the X-axis) in which the electrode lead 13 is drawn when the internal pressure increases. direction parallel to) The sealing portion 12b formed on both sides is first broken.
- the cooling unit 30 when venting of the battery cell 11 occurs, the cooling unit 30 is quickly broken, and as a result, the cooling liquid directly contacts the battery cell assembly 10 to prevent fire in advance or to quickly stop a fire that has already occurred. be able to evolve
- cooling unit 30 which can be quickly broken according to the venting of the battery cell 11, will be described later in detail.
- the battery cell assembly 10 may further include a bus bar frame assembly (not shown) for electrically connecting the plurality of battery cells 11 to each other.
- the bus bar frame assembly includes a bus bar frame and at least one bus bar.
- the bus bar frame is coupled to one side and the other side in the longitudinal direction of a cell stack in which a plurality of battery cells 11 are stacked, respectively.
- the bus bar frame may be made of, for example, an electrical insulating material such as a resin material.
- the bus bar frame may have a hole and/or a slit through which the electrode lead 13 is drawn out.
- the bus bar may be made of an electrically conductive material, for example, a metal material such as copper or nickel.
- the bus bar is coupled with the electrode leads 13 adjacent to each other drawn out through the bus bar frame.
- the bus bar is fixed on the bus bar frame.
- the module housing 20 may include a side cover 21 and a lower cover 22 .
- the side cover 21 is placed upright on the lower cover 22 and covers the side of the battery module. Accordingly, an empty space is formed inside the module housing 20 to accommodate at least one or more battery cell assemblies 10 .
- the module housing 20 may be configured such that at least one side is open.
- the cooling unit 30 may be positioned in the open portion.
- the module housing 20 includes a side cover 21 and a lower cover 22, and the cooling unit 30 covers the top of the battery cell assembly 10. positioned to do
- the lower cover 22 of the module housing 20 may be replaced with a cooling unit 30 .
- the module housing 20 includes only the side covers 21, and the cooling units 30 may be disposed on both sides of the battery cell assembly 10 in a height direction (a direction parallel to the Z axis).
- the cooling unit 30 is spaced apart from the first cooling plate 31 so that the first cooling plate 31 and the coolant flow path are formed, and the battery cell assembly 10 is closer than the first cooling plate 31. and a second cooling plate 32 disposed closely thereto.
- the first cooling plate 31 and the second cooling plate 32 are spaced apart from each other, and a passage through which a cooling liquid flows is formed between them.
- the first cooling plate 31 and the second cooling plate 32 may be made of, for example, a metal material such as aluminum. However, the materials of the first cooling plate 31 and the second cooling plate 32 are not limited thereto, and may be made of a resin material.
- the first cooling plate 31 and the second cooling plate 32 spaced apart from each other may be coupled to each other, for example, by brazing the rims of each plate to each other. However, other bonding methods other than brazing bonding are also possible.
- the battery module 1 of the present invention includes a plurality of battery cells included in the battery module 1 ( 11) can be cooled indirectly.
- the cooling unit 30 since the cooling unit 30 has a structure that covers the upper surface (a surface parallel to the X-Y plane) of the battery cell assembly 10, a plurality of batteries accommodated inside the module housing 20. Indirect cooling of the cell 11 is possible.
- At least one recess 310 may be provided on the first cooling plate 31 .
- the first cooling plate 31 includes a first inlet 311 and a first outlet 312 .
- the recess 310 may be concavely formed in a direction toward the second cooling plate 32 .
- the recess 310 has a concave shape when viewed from an outer surface of the first cooling plate 31 and a convex shape when viewed from an inner surface of the first cooling plate 31 .
- the recess 310 may come into contact with the second cooling plate 32 and may be firmly coupled to the second cooling plate 32 by, for example, welding.
- the recess 310 may have a shape extending along the longitudinal direction (direction parallel to the Y axis) or the width direction (direction parallel to the X axis) of the battery module 1 .
- a plurality of recesses 310 may be provided on the first cooling plate 31 , and the plurality of recesses 310 may be spaced apart from each other.
- the recesses 310 may have a shape elongated along the width direction (direction parallel to the X axis) of the battery module 1, and may be spaced apart from each other and disposed side by side in a row. have.
- the recess 310 is formed in the width direction of the battery module 1 (parallel to the X axis). direction) to function as a barrier rib that partially partitions the cooling liquid flow path. Accordingly, the recess 310 may play a role of guiding the cooling liquid introduced into the cooling unit 30 to smoothly flow throughout the cooling unit 30 . Accordingly, cooling efficiency of the battery module 1 may be increased.
- the recess 310 may have a shape extending along the longitudinal direction (direction parallel to the Y-axis) of the battery module 1 .
- the recess 310 may have a shape extending along a direction forming a predetermined angle with the X-axis and the Y-axis.
- the first inlet 311 functions as a passage through which cooling liquid flows into the cooling unit 30 .
- the first outlet 312 functions as a passage through which cooling liquid is discharged from the cooling unit 30 .
- the first inlet part 311 and the first outlet part 312 may be formed around a part of the periphery of the first cooling plate 31 .
- the first inlet 311 and the first outlet 312 may be formed in the same direction as shown in FIG. 1 .
- the first inlet 311 and the first outlet 312 may be formed on opposite sides of each other.
- the second cooling plate 32 includes a pattern portion 320 .
- the second cooling plate 32 includes a second inlet 321 and a second outlet 322 .
- the pattern part 320 includes at least one groove G formed to reduce the thickness of the second cooling plate 32 .
- the pattern part 320 may be formed on at least one of both surfaces of the second cooling plate 32 . This will be described in more detail with reference to FIG. 4 .
- FIG. 4 is a cross-sectional view showing a cross section taken along line AA' in FIG. 2 showing a battery module according to an embodiment of the present invention.
- a pattern portion 320 is formed on a portion of the surface facing the battery cell 11 among both surfaces of the second cooling plate 32 .
- the pattern part 320 may include at least one groove G formed to reduce the thickness of the second cooling plate 32 .
- the pattern portion 320 shown in FIG. 4 includes six grooves G. When the plurality of grooves G are formed, the plurality of grooves G are spaced apart from each other along the longitudinal direction of the battery module 1 (direction parallel to the Y-axis).
- the second cooling plate 32 responds to the venting of the battery cell 11. It may break rapidly due to contact with ejected hot gases and/or sparks.
- the cross section of the groove G may have a substantially triangular shape (see FIG. 4), a substantially rectangular shape (see FIG. 5), and a substantially semicircular shape (see FIG. 6). have.
- the shape of the groove G is not necessarily limited thereto, and any shape is possible as long as it can partially reduce the thickness of the second cooling plate 32 .
- the pattern portion 320 may be formed on the first of both sides of the second cooling plate 32 . It may be formed on the side facing the cooling plate 31, or may be formed on both sides.
- the grooves G may have a shape extending along the longitudinal direction (direction parallel to the X axis) of the battery cell 11 .
- each battery cell 11 is disposed upright with the X-axis direction being the longitudinal direction, and the groove G also has a shape extending along the X-axis direction. Therefore, when the pattern portion 320 is broken, the cooling liquid is supplied along the extension direction of the sealing portion 12b on one or both sides of the battery cell 11 in the width direction (parallel to the Z-axis), causing a fire. can be effectively prevented or quickly extinguish a fire that has already occurred.
- the plurality of grooves G and the sealing parts 12b of each of the plurality of battery cells 11 may be arranged to correspond to each other on a one-to-one basis.
- FIG. 7 is a view for explaining a case where gas and/or sparks are ejected due to the venting of some battery cells 11 of FIG. 4, and FIG. 10) is a diagram for explaining the process of inflow.
- abnormal heat is generated in a specific battery cell 11 among a plurality of battery cells 11 , and high-temperature gas and/or sparks may be ejected.
- the spark includes high-temperature metal particles and/or high-temperature pieces of electrode active material ejected to the outside when the battery cell 11 is vented.
- a pattern portion 320 is formed on a surface facing the battery cell 11 among both surfaces of the second cooling plate 32 , and the pattern portion 320 is formed on the battery cell 11 It includes a plurality of grooves (G) having a form extending along the longitudinal direction (direction parallel to the X-axis) of.
- the second cooling plate 32 may have a minimum thickness in at least one part of the region where the groove G is formed. Meanwhile, high-temperature gas and/or sparks ejected according to the venting of the battery cell 11 may contact the groove G, and at this time, the second cooling plate 32 of the groove G may At the point where the thickness is minimized, the second cooling plate 32 may be partially melted and/or fractured to form an opening H.
- the cooling liquid flowing between the first cooling plate 31 and the second cooling plate 32 may flow into the battery module 1 through the opening H. Accordingly, the cooling liquid can directly contact the battery cell 11 to quickly cool the battery cell 11, and minimize thermal transfer to the surrounding battery cells 11, thereby preventing thermal runaway and resulting large scale. of fire can be prevented.
- the second inlet 321 functions as a passage through which cooling liquid flows into the cooling unit 30 .
- the second outlet 322 functions as a passage through which cooling liquid is discharged from the cooling unit 30 .
- the second inlet 321 and the second outlet 322 may be formed on a part of the periphery of the second cooling plate 32 .
- the second inlet 321 and the second outlet 322 may be formed in the same direction as shown in FIG. 1 .
- the second inlet 321 and the second outlet 322 may be formed on opposite sides of each other.
- the second inlet 321 must be formed at a position corresponding to the first inlet 311 and the second outlet 322 must be formed at a position corresponding to the first outlet 312, so that the cooling liquid flows in and out. It can function as a passageway. This is because the first inlet 311 and the second inlet 321 are combined to form a cooling liquid inlet, and the first outlet 312 and the second outlet 322 are combined to form a cooling liquid outlet. Because.
- the first inlet 311 formed on the first cooling plate 31 and the second inlet 321 formed on the second cooling plate 32 are mutually coupled to form a cooling liquid inlet
- the first outlet 312 formed on the first cooling plate 31 and the second outlet 322 formed on the second cooling plate 32 are mutually coupled to form a cooling liquid outlet
- the present invention is not limited thereto. That is, the cooling liquid inlet and the cooling liquid outlet may be any one as long as they have a structure allowing cooling liquid to flow in and out.
- a structure in which an opening is formed in at least a part of the cooling unit 30 or a structure in which a pipe is formed may be exemplified.
- FIG. 9 is a diagram for explaining a battery pack 2 according to an embodiment of the present invention.
- a battery pack 2 according to the present invention may include a plurality of battery modules 1 according to the present invention described above.
- the battery pack 2 according to the present invention in addition to the battery module 1, other various components, such as a BMS, a pack case, a relay, a current sensor, etc. ) may further include components of
- FIG. 10 is a diagram for explaining the automobile 3 according to one embodiment of the present invention.
- a vehicle 3 according to the present invention may include one or more battery modules 1 according to the present invention.
- the vehicle 3 may include a plurality of battery modules 1 according to the present invention in a form electrically connected to each other.
- a plurality of battery modules 1 according to the present invention may constitute one battery pack 2, and the vehicle 3 may include at least one such battery pack 2.
- one or more battery modules 1 according to the present invention may be included in the energy storage system.
- the energy storage system may include a plurality of battery modules 1 according to the present invention in a form electrically connected to each other in order to have a large energy capacity.
- a plurality of battery modules 1 according to the present invention may constitute one battery pack 2, and the energy storage system may include a plurality of such battery packs 2.
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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)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
Claims (14)
- 복수 개의 배터리 셀들을 포함하는 배터리 셀 어셈블리;적어도 하나 이상의 상기 배터리 셀 어셈블리를 수용하는 내부 공간을 갖는 모듈 하우징; 및상기 배터리 셀 어셈블리의 일 측에 위치하는 냉각 유닛;을 포함하고,상기 냉각 유닛은, 제 1 냉각 플레이트 및 냉각액 유로가 형성되도록 상기 제 1 냉각 플레이트와 이격되며 상기 제 1 냉각 플레이트보다 상기 배터리 셀 어셈블리와 더 가깝게 배치되는 제 2 냉각 플레이트;를 포함하고,상기 제 2 냉각 플레이트의 적어도 일 부분에는 패턴부가 구비되어 있는 것을 특징으로 하는 배터리 모듈.
- 제 1 항에 있어서,상기 모듈 하우징은, 측부 커버 및 하부 커버를 포함하고,상기 냉각 유닛은, 상기 배터리 셀 어셈블리의 상부를 커버하는 것을 특징으로 하는 배터리 모듈.
- 제 1 항에 있어서,상기 패턴부는, 상기 제 2 냉각 플레이트의 양 면 중 적어도 일 면에 형성되는 것을 특징으로 하는 배터리 모듈.
- 제 1 항에 있어서,상기 패턴부는, 상기 제 2 냉각 플레이트의 두께를 감소시키도록 형성된 적어도 하나의 홈을 포함하는 것을 특징으로 하는 배터리 모듈.
- 제 1 항에 있어서,상기 제 1 냉각 플레이트는, 상기 제 2 냉각 플레이트를 향하는 방향으로 오목하게 형성된 리세스(recess)를 적어도 하나 이상 구비하는 것을 특징으로 하는 배터리 모듈.
- 제 5 항에 있어서,상기 리세스는, 상기 제 2 냉각 플레이트와 접하는 것을 특징으로 하는 배터리 모듈.
- 제 5 항에 있어서,상기 리세스는, 상기 배터리 모듈의 길이 방향 또는 폭 방향을 따라 연장된 형태를 갖는 것을 특징으로 하는 배터리 모듈.
- 제 7 항에 있어서,상기 제 1 냉각 플레이트는 상기 리세스를 복수 개 구비하고,복수 개의 상기 리세스는 상호 이격되는 것을 특징으로 하는 배터리 모듈.
- 제 2 항에 있어서,상기 배터리 셀은,한 쌍의 전극 리드를 구비하는 파우치형 셀인 것을 특징으로 하는 배터리 모듈.
- 제 9 항에 있어서,상기 배터리 셀은,상기 한 쌍의 전극 리드가 상기 측부 커버를 향하는 방향을 따라 연장되도록 상기 하부 커버 상에 기립 배치되는 것을 특징으로 하는 배터리 모듈.
- 제 1 항에 있어서,상기 제 2 냉각 플레이트는, 알루미늄으로 이루어진 것을 특징으로 하는 배터리 모듈.
- 제 1 항 내지 제 11 항 중 어느 한 항에 기재된 배터리 모듈을 포함하는 배터리 팩.
- 제 12 항에 기재된 배터리 팩을 포함하는 자동차.
- 제 12 항에 기재된 배터리 팩을 포함하는 에너지 저장 시스템.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US18/288,749 US20240213576A1 (en) | 2021-05-20 | 2022-04-18 | Battery module and battery pack comprising the same |
EP22804847.6A EP4250437A1 (en) | 2021-05-20 | 2022-04-18 | Battery module and battery pack comprising same |
CN202280009643.5A CN116711131A (zh) | 2021-05-20 | 2022-04-18 | 电池模块及含该电池模块的电池组 |
JP2023539909A JP2024502419A (ja) | 2021-05-20 | 2022-04-18 | バッテリーモジュール、及びそれを含むバッテリーパック |
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KR10-2021-0065126 | 2021-05-20 | ||
KR1020210065126A KR20220157263A (ko) | 2021-05-20 | 2021-05-20 | 배터리 모듈 및 이를 포함하는 배터리 팩 |
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WO2022244992A1 true WO2022244992A1 (ko) | 2022-11-24 |
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US (1) | US20240213576A1 (ko) |
EP (1) | EP4250437A1 (ko) |
JP (1) | JP2024502419A (ko) |
KR (1) | KR20220157263A (ko) |
CN (1) | CN116711131A (ko) |
WO (1) | WO2022244992A1 (ko) |
Citations (6)
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KR20170057465A (ko) * | 2014-10-31 | 2017-05-24 | 비와이디 컴퍼니 리미티드 | 히트싱크 및 파워 배터리 시스템 |
CN107093781A (zh) * | 2016-02-18 | 2017-08-25 | 宁德时代新能源科技股份有限公司 | 电池模组 |
JP2019129149A (ja) * | 2018-01-19 | 2019-08-01 | ハンオン システムズ | バッテリーセルを冷却させるための冷却システム及びバッテリーモジュール組立体 |
KR20200055215A (ko) * | 2018-11-12 | 2020-05-21 | 현대자동차주식회사 | 배터리 모듈 |
KR20200098839A (ko) * | 2019-02-13 | 2020-08-21 | 주식회사 세광정밀 | 볼트결합형 수냉식 배터리팩 냉각장치 |
KR20210065126A (ko) | 2018-09-24 | 2021-06-03 | 바스프 에스이 | 3d 인쇄에 사용하기 위한 uv 경화성 조성물 |
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2021
- 2021-05-20 KR KR1020210065126A patent/KR20220157263A/ko active Search and Examination
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2022
- 2022-04-18 US US18/288,749 patent/US20240213576A1/en active Pending
- 2022-04-18 EP EP22804847.6A patent/EP4250437A1/en active Pending
- 2022-04-18 CN CN202280009643.5A patent/CN116711131A/zh active Pending
- 2022-04-18 JP JP2023539909A patent/JP2024502419A/ja active Pending
- 2022-04-18 WO PCT/KR2022/005522 patent/WO2022244992A1/ko active Application Filing
Patent Citations (6)
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KR20170057465A (ko) * | 2014-10-31 | 2017-05-24 | 비와이디 컴퍼니 리미티드 | 히트싱크 및 파워 배터리 시스템 |
CN107093781A (zh) * | 2016-02-18 | 2017-08-25 | 宁德时代新能源科技股份有限公司 | 电池模组 |
JP2019129149A (ja) * | 2018-01-19 | 2019-08-01 | ハンオン システムズ | バッテリーセルを冷却させるための冷却システム及びバッテリーモジュール組立体 |
KR20210065126A (ko) | 2018-09-24 | 2021-06-03 | 바스프 에스이 | 3d 인쇄에 사용하기 위한 uv 경화성 조성물 |
KR20200055215A (ko) * | 2018-11-12 | 2020-05-21 | 현대자동차주식회사 | 배터리 모듈 |
KR20200098839A (ko) * | 2019-02-13 | 2020-08-21 | 주식회사 세광정밀 | 볼트결합형 수냉식 배터리팩 냉각장치 |
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US20240213576A1 (en) | 2024-06-27 |
JP2024502419A (ja) | 2024-01-19 |
CN116711131A (zh) | 2023-09-05 |
EP4250437A1 (en) | 2023-09-27 |
KR20220157263A (ko) | 2022-11-29 |
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