WO2022173182A1 - 전지 모듈 및 이를 포함하는 전지팩 - Google Patents
전지 모듈 및 이를 포함하는 전지팩 Download PDFInfo
- Publication number
- WO2022173182A1 WO2022173182A1 PCT/KR2022/001878 KR2022001878W WO2022173182A1 WO 2022173182 A1 WO2022173182 A1 WO 2022173182A1 KR 2022001878 W KR2022001878 W KR 2022001878W WO 2022173182 A1 WO2022173182 A1 WO 2022173182A1
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- WIPO (PCT)
- Prior art keywords
- battery
- battery module
- compression pad
- module
- battery cell
- Prior art date
Links
- 230000006835 compression Effects 0.000 claims abstract description 54
- 238000007906 compression Methods 0.000 claims abstract description 54
- 230000004888 barrier function Effects 0.000 claims description 36
- 239000000758 substrate Substances 0.000 claims description 22
- 230000008961 swelling Effects 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 6
- 230000007123 defense Effects 0.000 claims description 6
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims description 3
- 235000015497 potassium bicarbonate Nutrition 0.000 claims description 3
- 239000011736 potassium bicarbonate Substances 0.000 claims description 3
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims description 3
- 229940086066 potassium hydrogencarbonate Drugs 0.000 claims description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 3
- 239000004254 Ammonium phosphate Substances 0.000 claims description 2
- 229910000148 ammonium phosphate Inorganic materials 0.000 claims description 2
- 235000019289 ammonium phosphates Nutrition 0.000 claims description 2
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 description 17
- 230000000694 effects Effects 0.000 description 4
- 230000001902 propagating effect Effects 0.000 description 2
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Images
Classifications
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—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
-
- 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
- H01M10/64—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
- 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
-
- 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
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
-
- 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
- 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
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular 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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
-
- 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
-
- 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
- H01M50/293—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 the material
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/383—Flame arresting or ignition-preventing means
-
- 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, and more particularly, to a battery module with enhanced safety and a battery pack including the same.
- secondary batteries are of great interest not only as mobile devices such as mobile phones, digital cameras, notebooks, and wearable devices, but also as energy sources for power devices such as electric bicycles, electric vehicles, and hybrid electric vehicles.
- the battery module in order to protect the battery cell stack from external impact, heat, or vibration, the front and back of the open front and rear may include a module frame for accommodating the battery cell stack in an internal space.
- FIG. 1 is an exploded perspective view of a conventional battery module.
- FIG. 2 is a perspective view illustrating a state in which components constituting the battery module of FIG. 1 are combined.
- FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 .
- the conventional battery module 10 includes a battery cell stack 12 in which a plurality of battery cells 11 are stacked in one direction, and a battery cell stack 12 accommodating the
- the module frame 30 , the end plate 15 covering the front and rear surfaces of the battery cell stack 12 , and the bus bar frame 13 formed between the end plate 15 and the front and rear surfaces of the battery cell stack 12 ) includes
- the module frame 30 includes a lower frame 30 covering the lower and both sides of the battery cell stack 12 and an upper plate 40 covering the upper surface of the battery cell stack 12 .
- a compression pad 20 is positioned between a pair of adjacent battery cells in the battery cell stack 12 .
- the compression pad 20 included in the conventional battery module 10 may be in contact with one surface of the battery cell 11 .
- the battery cell stack 12 may apply stress to the module frame 30 and the upper plate 40 , which may decrease module rigidity.
- the compression pad 20 may absorb a swelling phenomenon.
- the compression pad 20 alone has little effect of reducing the heat propagation time when ignition occurs within the module, and it is difficult to prevent ignition.
- the secondary cell fires due to external heat conduction due to the flame generated in the battery cells 11 as well as heat conduction between the neighboring battery cells 11, and the risk may be very high. .
- An object of the present invention is to provide a battery module and a battery pack including the same for preventing ignition in the module and effectively delaying the speed of heat propagation between battery cells.
- a battery module includes a battery cell stack formed by stacking a plurality of battery cells; a module frame for accommodating the battery cell stack; and a compression pad disposed between the battery cells, wherein the compression pad has a porous structure.
- the porous structure may include a plurality of holes, and a protective substrate may be formed in the plurality of holes.
- the protective substrate may include at least one of a heat absorbing member and a heat insulating member.
- the material forming the defense substrate may flow out of the hole by swelling of the battery cell to form a barrier film.
- the barrier layer may include a first barrier layer formed between the battery cell and the compression pad.
- the barrier film may further include a second barrier film formed between the battery cell stack and the upper plate of the module frame.
- the hole may have an elliptical shape.
- the hole may have an elliptical shape elongated in a direction in which the electrode lead of the battery cell protrudes.
- the heat absorbing member or heat insulating member may include an extinguishing agent comprising at least one of sodium hydrogen carbonate, potassium hydrogen carbonate, and first ammonium phosphate.
- the compression pad may be formed of at least one of urethane, polyurethane, low-density polyether, and polyester.
- a battery pack according to another embodiment of the present invention includes the battery module described above.
- a compression pad having a porous structure interposed between a pair of adjacent battery cells may be formed, and a protective substrate may be formed inside the porous structure of the compression pad.
- the protective substrate may be released from the inside of the porous structure to the outside by the pressure applied to the battery cell when the battery cell is ignited to form a barrier film. Therefore, it is possible to delay the speed of heat propagation between neighboring battery cells.
- FIG. 1 is an exploded perspective view of a conventional battery module.
- FIG. 2 is a perspective view illustrating a state in which components constituting the battery module of FIG. 1 are combined.
- FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 .
- FIG. 4 is a plan view of a battery module according to an embodiment of the present invention.
- FIG. 5 is a plan view illustrating a compression pad included in the battery module of FIG. 4 .
- FIG. 6 is a view illustrating a state before and after the compression pad of FIG. 5 is subjected to external pressure.
- FIG. 7 is a view illustrating that the compression pad according to the present embodiment forms a barrier film by receiving the external pressure of FIG. 6 .
- FIG. 8 is an enlarged view of part B of FIG. 7 .
- FIG. 9 is an enlarged view of part B of FIG. 7 .
- a part of a layer, film, region, plate, etc. when a part of a layer, film, region, plate, etc. is said to be “on” or “on” another part, it includes not only cases where it is “directly on” another part, but also cases where there is another part in between. . Conversely, when we say that a part is “just above” another part, we mean that there is no other part in the middle.
- the reference portion means to be located above or below the reference portion, and to necessarily mean to be located “on” or “on” in the direction opposite to gravity not.
- planar view it means when the target part is viewed from above, and when it is referred to as “cross-section”, it means when the cross-section obtained by cutting the target part vertically is viewed from the side.
- the compression pad 20 described with reference to FIGS. 1 to 3 may have a uniform cross-section and may have a constant thickness.
- the compression pad 20 may serve to prevent cell swelling, and may delay heat propagation to some extent when the cell is ignited. In preparation for this, the compression pad according to an embodiment of the present invention will be described later in detail.
- FIG. 4 is a plan view of a battery module according to an embodiment of the present invention, and is a view of the battery module according to an embodiment of the present invention as viewed from above.
- 5 is a view illustrating a cross-section of a compression pad included in the battery module of FIG. 4 .
- the battery module according to this embodiment is a battery cell stack 120 formed by stacking a plurality of battery cells 110, a module frame for accommodating the battery cell stack 120 ( 130), and a compression pad 150 disposed between neighboring battery cells 110 among the plurality of battery cells 110 .
- the battery module according to the present embodiment shown in FIG. 4 may be a view of the battery module of FIG. 2 from above. Therefore, the direction from the top to the bottom of FIG. 4 may be the x-axis direction of FIG. 2 , and although not shown in FIG. 4 , the battery module according to this embodiment is an upper plate (not shown) covering the battery module of FIG. ) may be further included.
- the compression pad 150 has a porous structure, and the porous structure according to the present embodiment includes a plurality of holes 140 .
- a protective substrate 160 may be formed inside the plurality of holes 140 .
- the protective substrate 160 may include at least one of a heat absorbing member and a heat insulating member.
- the compression pad 150 is not only formed between the battery cells 110 positioned inside the battery cell stack 120 , but also the outermost battery cell and the outermost battery included in the battery cell stack 120 . It may be located between a cell and an adjacent battery cell.
- a compression pad 150 is formed between the outermost battery cell adjacent to the module frame 130 and the battery cell adjacent to the outermost battery cell and between the battery cells 110 positioned inside the battery cell stack 120 . By doing so, it is possible to prevent the flame generated in the battery cell 110 from propagating to the neighboring battery cell 110 or from being transmitted to the outside of the module. It can also delay heat propagation within the module.
- the protective substrate 160 positioned inside the hole 140 is subjected to pressure, and the compression pad 150 is crushed to cause the protective substrate ( The material forming the 160 may flow out of the hole 140 and come out.
- the barrier film 200 may be formed between the battery cell 110 and the compression pad 150 .
- the protective substrate 160 positioned inside the hole 140 is subjected to pressure, the compression pad 150 is crushed, and the hole 140 has an elliptical shape.
- the elliptical shape may be an elliptical shape in which an electrode lead (not shown) of the battery cell 110 is elongated in a protruding direction.
- the hole 140 may have an oval shape in various directions depending on the direction of the external pressure applied to the hole 140 by the swelling of the battery cell 110 , but is not limited thereto.
- the compression pad 150 having a porous structure may be selected from materials having an inherently porous structure, such as urethane, polyurethane, low-density polyether, and polyester.
- the porous structure may be formed by scanning a laser when the compression pad 150 is formed, or the hole 140 may be formed together when the compression pad 150 is formed, but is not limited thereto.
- the compression pad 150 selected from the material or the porous structure of the compression pad 150 formed through the above method may include a plurality of holes 140 , and the protective substrate 160 may be interposed inside the holes 140 . .
- at least one hole 140 may be formed on the compression pad 150 , and as the number of holes 140 increases, the number of intervening defense substrates 160 may increase.
- the hole 140 on the compression pad 150 may be preferably formed at a level capable of maintaining the function of the compression pad 150 for absorbing cell swelling, but is not limited thereto.
- FIG. 6 is a view showing a state before and after the compression pad receives external pressure.
- FIG. 7 is a view illustrating that the compression pad according to the embodiment forms a barrier film by receiving the external pressure of FIG. 6 .
- 8 and 9 are enlarged views of part B of FIG. 7 .
- the protective substrate 160 interposed in the hole 140 of the compression pad 150 flows out from the hole 140 of the compression pad 150 as an external pressure is applied to the barrier film. (200) can be formed. This is because, as described above, the shape of the hole 140 of the compression pad 150 is changed by external pressure, and as the protective substrate 160 interposed in the hole 140 is pushed out from the compression pad 150 , the barrier A film 200 is formed.
- the barrier film 200 is a first barrier film 200a formed between the battery cell 110 and the compression pad 150 , between the battery cell stack 120 and the module frame 130 , in particular, the battery cell.
- a second barrier layer 200b formed between the stacked body 120 and the upper plate (not shown) of the module frame 130 may be included.
- the second barrier layer may further include a third barrier layer 200c formed between the compression pad 150 and the module frame 130 , in particular, the upper plate of the module frame 130 .
- the first barrier film 200a may cover part or all of the space between the battery cell 110 and the compression pad 150
- the second barrier film 200b is formed between the battery cell stack 120 and the module frame ( 130), in particular, may cover part or all of the space between the upper plates of the module frame 130
- the third barrier layer 200c is formed between the compression pad 150 and the module frame 130 .
- Part or all of the space between the module frame 130 in particular, the space between the compression pad 150 and the upper plate of the module frame 130 may be covered. Accordingly, the degree of flow of the protective substrate 160 from the hole 140 is controlled according to the applied pressure, whereby the degree of formation of the barrier layer may be controlled.
- the first barrier film 200a , the second barrier film 200b , and the third barrier film 200c cover a part or the whole of the space to prevent ignition due to a temperature increase in the module.
- the protective substrate 160 flows out from the hole 140 of the compression pad 150 and forms a barrier film 200 between the compression pad 150 and the battery cell 110 adjacent thereto.
- the protective substrate 160 forming the barrier film 200 may include a heat absorbing member or a heat insulating member.
- the heat absorbing member or the heat insulating member may be an extinguishing agent, and more specifically, the extinguishing agent may be a liquid extinguishing agent or a powder extinguishing agent.
- the extinguishing agent may include at least one of sodium hydrogen carbonate, potassium hydrogen carbonate, and primary ammonium phosphate, but is not limited thereto.
- one or more battery modules according to an embodiment of the present invention may be packaged in a pack case to form a battery pack.
- the above-described battery module and battery pack including the same may be applied to various devices.
- a device may be applied to transportation means such as an electric bicycle, an electric vehicle, and a hybrid vehicle, but the present invention is not limited thereto and is applicable to various devices that can use a battery module and a battery pack including the same, and this It belongs to the scope of the invention.
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims (11)
- 복수의 전지셀이 적층되어 형성된 전지셀 적층체;상기 전지셀 적층체를 수용하는 모듈 프레임; 및상기 전지셀들 사이에 배치되어 있는 압축 패드를 포함하고,상기 압축 패드는 다공성 구조를 갖는 전지 모듈.
- 제1항에서,상기 다공성 구조는 복수의 홀을 포함하고,상기 복수의 홀에는 방어 기재가 형성되어 있는 전지 모듈.
- 제2항에서,상기 방어 기재는 흡열 부재 및 단열 부재 중 적어도 하나를 포함하는 전지 모듈.
- 제3항에서,상기 전지셀의 스웰링에 의해 상기 방어 기재를 형성하는 소재가 상기 홀 외부로 유동하여 배리어막을 형성하는 전지 모듈.
- 제4항에서,상기 배리어막은 상기 전지셀과 상기 압축 패드 사이에 형성되는 제1 배리어막을 포함하는 전지 모듈.
- 제5항에서,상기 배리어막은 상기 전지셀 적층체와 상기 모듈 프레임의 상부 플레이트 사이에 형성되는 제2 배리어막을 더 포함하는 전지 모듈.
- 제6항에서,상기 홀은 타원 형상을 갖는 전지 모듈.
- 제7항에서,상기 홀은 상기 전지셀의 전극 리드가 돌출된 방향으로 길게 형성된 타원 형상을 갖는 전지 모듈.
- 제3항에서,상기 흡열 부재 또는 단열 부재는 탄산수소나트륨, 탄산수소칼륨 및 제1 인산암모늄 중 적어도 하나를 포함하는 소화약제를 포함하는 전지 모듈.
- 제1항에서,상기 압축 패드는 우레탄, 폴리우레탄, 저밀도 폴리에테르 및 폴리에스테르 중 적어도 하나의 소재로 형성되는 전지 모듈.
- 제1항에 따른 전지 모듈을 포함하는 전지 팩.
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EP22752942.7A EP4181288A1 (en) | 2021-02-09 | 2022-02-08 | Battery module and battery pack comprising same |
US18/022,715 US20240039056A1 (en) | 2021-02-09 | 2022-02-08 | Battery module and battery pack including the same |
CN202280005908.4A CN116235353A (zh) | 2021-02-09 | 2022-02-08 | 电池模块及包括该电池模块的电池组 |
JP2023505431A JP2023535773A (ja) | 2021-02-09 | 2022-02-08 | 電池モジュールおよびこれを含む電池パック |
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Citations (5)
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KR101272524B1 (ko) * | 2011-09-20 | 2013-06-11 | 현대자동차주식회사 | 배터리 셀용 방열판 및 이를 갖는 배터리 모듈 |
JP2015162285A (ja) * | 2014-02-26 | 2015-09-07 | 日産自動車株式会社 | 電池モジュール |
KR20170135476A (ko) * | 2016-05-31 | 2017-12-08 | 주식회사 엘지화학 | 배터리 모듈, 이러한 배터리 모듈을 포함하는 배터리 팩 및 이러한 배터리 팩을 포함하는 자동차 |
JP2019021384A (ja) * | 2017-07-11 | 2019-02-07 | 日産自動車株式会社 | 電池 |
WO2020203684A1 (ja) * | 2019-03-29 | 2020-10-08 | 三井化学株式会社 | リチウムイオン電池スタック |
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KR101272524B1 (ko) * | 2011-09-20 | 2013-06-11 | 현대자동차주식회사 | 배터리 셀용 방열판 및 이를 갖는 배터리 모듈 |
JP2015162285A (ja) * | 2014-02-26 | 2015-09-07 | 日産自動車株式会社 | 電池モジュール |
KR20170135476A (ko) * | 2016-05-31 | 2017-12-08 | 주식회사 엘지화학 | 배터리 모듈, 이러한 배터리 모듈을 포함하는 배터리 팩 및 이러한 배터리 팩을 포함하는 자동차 |
JP2019021384A (ja) * | 2017-07-11 | 2019-02-07 | 日産自動車株式会社 | 電池 |
WO2020203684A1 (ja) * | 2019-03-29 | 2020-10-08 | 三井化学株式会社 | リチウムイオン電池スタック |
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EP4181288A1 (en) | 2023-05-17 |
CN116235353A (zh) | 2023-06-06 |
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