WO2023080566A1 - 전지 모듈 - Google Patents
전지 모듈 Download PDFInfo
- Publication number
- WO2023080566A1 WO2023080566A1 PCT/KR2022/016734 KR2022016734W WO2023080566A1 WO 2023080566 A1 WO2023080566 A1 WO 2023080566A1 KR 2022016734 W KR2022016734 W KR 2022016734W WO 2023080566 A1 WO2023080566 A1 WO 2023080566A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- insulator
- battery cell
- battery
- electrode leads
- heat insulating
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000012212 insulator Substances 0.000 claims description 58
- 239000002210 silicon-based material Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 17
- 239000002245 particle Substances 0.000 abstract description 15
- 238000004880 explosion Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 230000014509 gene expression Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WABPQHHGFIMREM-NOHWODKXSA-N lead-200 Chemical compound [200Pb] WABPQHHGFIMREM-NOHWODKXSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000008961 swelling Effects 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
- 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
- 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
- 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
- H01M10/65—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
- 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
- H01M50/233—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
- 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
-
- 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
-
- 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
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
-
- 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
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
- H01M50/593—Spacers; Insulating plates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/10—Temperature sensitive devices
-
- 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 more particularly, by disposing a first insulator in the form of an insulating pad between individual battery cells and disposing a second insulator made of a thermally expandable material between individual electrode leads, so that individual battery cells and A battery module capable of effectively reducing the risk of fire and explosion by blocking the movement of heat and high-temperature particles between bus bar plates.
- a battery pack When a battery pack is configured by connecting a plurality of battery cells in series/parallel, a battery module composed of at least one battery cell is configured, and other components are added using the at least one battery module to configure the battery pack. method is generally applied.
- a battery module formed of a U-frame structure capable of improving the quality of parts and increasing space utilization has been developed.
- a battery module having such a U-frame structure is formed of a battery cell stack in which a plurality of battery cells are stacked, a bottom surface and both sides of the battery cell stack, and a lower frame of a U-shaped structure covering the lower surface and both sides of the battery cell stack, It may be configured to include an upper frame covering the upper surface of the battery cell stack.
- the battery cell stack inevitably generates heat when power is supplied, and if heat generation is not effectively controlled, the efficiency of the battery cell stack may rapidly decrease, and in some cases, fire and explosion may occur. There is a risk.
- Korean Patent Publication No. 10-2020-0106378 discloses heat insulation pads 60 disposed in gaps formed between adjacent battery cells 11 as shown in FIG.
- a battery module that prevents particles from moving to an adjacent battery cell 11 is disclosed.
- the heat and high-temperature particles generated in the first battery cell 11 are transferred to the fourth battery cell 11 and the fifth battery cell 11. It can be prevented from moving to another battery cell 11 disposed on the right side of the fourth battery cell 11 by the heat insulation pad 60 disposed between the battery cells 11 .
- the space between the front end or rear end of each battery cell 11 and the bus bar plate 50 is the first battery cell 11 and Through the 24th battery cell 11, it is formed to be an open space that is not blocked.
- the effect of preventing fire and explosion using the insulation pad 60 has a limit that can only be halved. .
- the present invention has been made to solve the problems of the prior art described above, by disposing a first insulation pad in the form of an insulation pad between individual battery cells and disposing a second insulation made of a thermally expandable material between individual electrode leads.
- a first object is to provide a battery module capable of effectively reducing the risk of fire and explosion by blocking the movement of heat and high-temperature particles between individual battery cells and a bus bar plate.
- the second insulator is formed to have a smaller volume than the space formed between the individual battery cells and the bus bar plate in the non-expanded state, so that the space formed between the individual battery cells and the bus bar plate acts as an air passage.
- a second object is to provide a battery module capable of effectively maintaining cooling performance when operating in a normal temperature range by being configured to function.
- a battery module includes a battery cell laminate formed by stacking first battery cells and second battery cells disposed adjacent to each other; a plurality of electrode leads electrically connected to each of the first battery cell and the second battery cell; a first heat insulator disposed between the first battery cell and the second battery cell; and a second heat insulating part disposed between the plurality of electrode leads, wherein the second heat insulating part is made of a material having a higher coefficient of thermal expansion than the first heat insulating part.
- the second insulator may be made of a thermally expandable material whose volume increases when a predetermined critical temperature is reached.
- the thermally expandable material may include expansion paper.
- the first heat insulator may be made of a silicon-based material.
- the battery module may further include a bus bar plate electrically connecting the plurality of electrode leads.
- the second heat insulating part may be provided in the form of a pad having one side fixed to the bus bar plate.
- the second heat insulating part may be disposed in a state of being separated from the first heat insulating part before the expansion starts.
- the other side surface of the second heat insulating part may contact the first heat insulating part.
- the second heat insulator may be disposed in a state of being separated from each of the plurality of electrode leads before the expansion starts.
- both side surfaces of the second insulator may come into contact with the plurality of electrode leads, respectively.
- a space formed between the plurality of electrode leads may be closed.
- a first heat insulating part in the form of an insulating pad is disposed between individual battery cells, and a second heat insulating part made of a thermally expandable material is disposed between individual electrode leads to form a gap between the individual battery cells and the bus bar plate. It has the effect of effectively reducing the risk of fire and explosion by blocking the movement of heat and high-temperature particles.
- the battery module according to the present invention is formed to have a smaller volume than the space formed between the individual battery cells and the bus bar plate in the state in which the second heat insulating part is not expanded to form between the individual battery cells and the bus bar plate.
- FIG. 1 is a schematic cross-sectional view of a battery cell according to the prior art.
- FIG. 2 is an exploded perspective view of a battery module according to an embodiment of the present invention.
- FIG. 3 is a schematic cross-sectional view of the battery module shown in FIG. 2 .
- FIG. 4 is a rear perspective view illustrating a state in which a second heat insulator is disposed on the first bus bar plate shown in FIG. 2;
- FIG. 5 is a partially enlarged view of FIG. 3 showing a state in which the second heat insulating part is not expanded.
- FIG. 6 and 7 are partially enlarged views of FIG. 3 illustrating a process in which the second heat insulator expands upon reaching a critical temperature.
- battery module 100 battery cell laminate 110: battery cell 111: electrode lead 200: frame 210: lower frame 211: bottom frame 212: side frame 220: upper frame 300: end plate 310: first end plate 320: first 2 end plate 400: insulating cover 410: first insulating cover 420: second insulating cover 500: bus bar plate 600: first insulating part 700: second insulating part
- first, second, etc. are used to describe various components, these components are not limited by these terms, of course. These terms are only used to distinguish one component from another component, and unless otherwise stated, the first component may be the second component, of course.
- the arrangement of an arbitrary element on the "upper (or lower)" or “upper (or lower)” of a component means that an arbitrary element is placed in contact with the upper (or lower) surface of the component.
- ком ⁇ онент when a component is described as “connected”, “coupled” or “connected” to another component, the components may be directly connected or connected to each other, but other components may be “interposed” between each component. ", or each component may be “connected”, “coupled” or “connected” through other components.
- FIG. 2 is an exploded perspective view of a battery module 1 according to an embodiment of the present invention.
- the battery module 1 includes a frame 200 composed of a lower frame 210 and an upper frame 220, and accommodated inside the frame 200.
- the battery cell stack 100 a pair of end plates 300 coupled to the open front and rear surfaces of the frame 200, and disposed between the end plate 300 and the frame 200, and the end plate It may include an insulating cover 400 that insulates between the 300 and the frame 200, and a bus bar plate 500 disposed between the insulating cover 400 and the battery cell stack 100.
- the plurality of battery cells 110 may be closely arranged in a stacked state to form the battery cell stack 100 .
- a first heat insulating part 600 in the form of a heat insulating pad may be disposed between adjacent battery cells 110 .
- the first insulator 600 may be disposed with one to several battery cells 110 interposed therebetween.
- FIG. 3 a structure in which the first heat insulator 600 is disposed with four battery cells 110 interposed therebetween is exemplified.
- the frame 200 has a lower portion consisting of a structure surrounding the lower surface and both side surfaces of the battery cell stack 100 to accommodate the battery cell stack 100 therein. It may include a frame 210 and an upper frame 220 disposed on the upper side of the battery cell stack 100 .
- the lower frame 210 may include a bottom frame 220 constituting a bottom surface and a pair of side frames 210 constituting two side walls.
- the bottom frame 220 and the pair of side frames 210 may be integrally formed by press-working a metal plate having a predetermined strength.
- the upper frame 220 serves to cover the upper surface of the battery cell stack 100 and, like the lower frame 210, may be formed of a metal plate having a predetermined strength.
- the upper frame 220 may be assembled to the lower frame in a manner coupled to upper ends of the pair of side frames 210 .
- Bottom surfaces of both ends of the upper frame 220 and upper ends of the side frames 210 may be coupled through laser welding (L).
- the plurality of battery cells 110 may be pouch-type battery cells, and bidirectional battery cells in which positive and negative electrode leads constituting the electrode lead 111 protrude in opposite directions may be used.
- the plurality of battery cells 110 are electrically connected to the electrode leads 111 using the bus bar plate 500 so that they are connected in series or parallel according to the desired output and capacity of the battery module 1. It can be done.
- the battery cell stack 100 may further include a cartridge, a buffer member, or a cooling means for accommodating the battery cells 110 .
- the front and rear surfaces of the frame 200 are open, and the electrode leads 111 of the battery cell stack 100 may be exposed to the outside through the open front and rear surfaces.
- a pair of insulating covers 400, a pair of end plates 300, and a pair of bus bar plates 500 disposed to face the electrode leads 111 are provided on the open front and rear surfaces of the frame 200. can be placed.
- the end plate 300 may be mounted on the frame 200 together with the battery cell stack 100 in a state connected to the battery cell stack 100 and the bus bar plate 500 .
- the battery cell laminate 100 and the bus bar plate 500 may be first mounted on the frame 200, and the end plate 300 may be coupled in a state in which the upper frame 220 is coupled to the frame 200. there is.
- the end plate 300 may be manufactured through a casting method using a metal material, preferably iron or alloy material, so that predetermined strength and rigidity can be maintained.
- the insulating cover 400 is disposed between the end plate 300 and the bus bar plate 500, and serves to physically separate and insulate at least the end plate 300 and the bus bar plate 500, and to insulate the front side. It may be configured to include a first insulating cover 420 disposed on and a second insulating cover 420 disposed on the rear side.
- the insulating cover 400 may be manufactured by injection molding a plastic material having low electrical conductivity and maintaining a predetermined rigidity.
- the battery module 1 includes a first heat insulating part 600 in the form of a heat insulating pad or a heat insulating sheet disposed between each of the battery cells 110. can include more.
- the first insulator 600 serves to prevent heat, flame, or high-temperature particles generated in one battery cell 110 from being transferred to an adjacent battery cell 110 .
- the first insulator 600 is formed by processing a silicon material having excellent thermal insulation performance and electrical insulation in the form of a pad or sheet, and is interposed between the battery cells 111. can be placed.
- the first heat insulating part 600 may be formed to have a predetermined elasticity. Through this, when the volume of the battery cell 110 is expanded or cooled and contracted due to heat or a swelling phenomenon, the first insulator 600 can be effectively expanded or contracted in response.
- the first heat insulating part 600 is disposed to entirely cover one side of the battery cell 110, but is preferably disposed so as not to exceed the front and rear ends of the battery cell 110 as shown. When the first heat insulating part 600 is disposed beyond the front and rear ends of the battery cell 110, it is difficult to secure a space for connecting the plurality of electrode leads 111 to the bus bar plate 500. am.
- each battery cell 110 and the bus bar plate 500 may be formed between the front end of each battery cell 110 and the bus bar plate 500 and between the rear end and the bus bar plate 500.
- These open spaces can function as cooling channels through which air can flow.
- the first insulator 600 may be continuously disposed between all of the battery cells 111 or intermittently disposed between some of the battery cells 111 .
- FIG. 3 a configuration in which a total of five first heat insulators 600 are intermittently arranged is shown.
- the present invention is not limited thereto, but will be described based on an embodiment in which a total of five first heat insulators 600 are intermittently disposed, as shown by way of example.
- the open space formed between the front end of each battery cell 110 and the bus bar plate 500 and between the rear end and the bus bar plate 500 is not blocked or blocked by the first heat insulating part 600. Because of this, heat, flames and high-temperature particles can spread through the open space.
- the battery module 1 is a plurality of batteries disposed between adjacent electrode leads 111. 2 may further include an insulator 700 .
- the second insulator 700 may be disposed between the electrode leads 111 in the form of a pad or a sheet similar to the first insulator 600, but has a greater coefficient of thermal expansion than the first insulator 600. It can be made of material.
- the second insulator 700 may be made of a thermally expandable material whose volume expands when a predetermined critical temperature is reached, and may be made of, for example, an expanding paper material.
- Expansion paper is a material characterized by a rapid increase in volume when a critical temperature of about 100 to 200 ° C is reached.
- the volume is maintained in the initial state (unexpanded state), but when the battery cell 110 is overheated and reaches a critical temperature, the expansion paper expands As shown in FIG. 6, the open space between the aforementioned battery cell 110 and the bus bar plate 500 is blocked.
- the second heat insulating part 700 may be disposed with one end fixed to the bus bar plate 500 .
- the plurality of second insulators 700 provided in the form of pads are the rear surface 511 of the first bus bar plate 510 disposed in the front or the front surface of the second bus bar plate 520 disposed in the rear. It may be configured to be fixed to each.
- the second insulator 700 is separated from the first insulator 600 at a predetermined interval and is separated from the first insulator 600. It can be arranged so as to be arranged side by side on.
- the second heat insulating part 700 may be intermittently disposed between the electrode leads 111, like the first heat insulating part 600, and the second heat insulating part 700 is the first heat insulating part ( 600) may be aligned and arranged on an extension line in the front-back direction (F-R direction).
- the second insulation unit 700 directly contacts the front and rear ends of the first insulation unit 600, so that the open space can be effectively blocked.
- the entire second insulation part 700 may be disposed in a state of being separated from the electrode leads 111, and when the predetermined critical temperature is reached and the expansion starts, the second insulation part 700 Both sides of 700 may be configured to contact the electrode leads 111 .
- the open space formed between the electrode leads 111 and between the battery cell 110 and the bus bar plate 500 may be at least partially blocked by the expanded second heat insulator 700 .
- the other end 701 of the second insulator 700 is separated from the first insulator 600 in the front-back direction (F-R direction) while operating in the normal temperature range. is maintained
- the front-and-back distance G1 between the other end 701 of the second insulator 700 and the first insulator 600 is longer than the width W2 of the second insulator 700 in the front-and-back direction. It is preferably set to less than or equal to. Through this, the function as a cooling channel for the open space between the battery cell 110 and the second bus bar plate can be maintained at an appropriate level.
- the width W1 of the second insulator 700 in the left-right direction may be smaller than the distance between the pair of adjacent electrode leads 111 in the operating state in the normal temperature range. Through this, interference of the second insulator 700 with respect to electrode leads in a normal temperature range can be minimized.
- the expansion may proceed simultaneously in the front-back direction (F-R direction) and the left-right direction (Le-Ri direction).
- the other end 702 of the second insulator 700 gradually advances toward the first insulator 600, and the other end 701 of the second insulator 700 and the first insulator 600 ) can be progressively reduced.
- both sides of the second insulator 700 advance toward the pair of electrode leads 111 facing each other, and the distance between the second insulator and the pair of electrode leads may gradually decrease.
- the other end 702 of the second insulator 700 extends to the first insulator 600, and both side surfaces of the second insulator 700 extends to the pair of electrode leads 111.
- the open space formed between the battery cell 110 and the bus bar plate 500 and between the pair of electrode leads 111 is the second insulator 700 ), and the path P through which heat, flame and high-temperature particles can move can be blocked.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims (10)
- 서로 인접하여 배치되는 제1 전지셀 및 제2 전지셀이 적층되어 형성되는 전지셀 적층체;상기 제1 전지셀 및 상기 제2 전지셀에 각각 전기적으로 연결되는 복수의 전극 리드;상기 제1 전지셀 및 상기 제2 전지셀 사이에 배치되는 제1 단열부; 및상기 복수의 전극리드 사이에 배치되는 제2 단열부;를 포함하고,상기 제2 단열부는 상기 제1 단열부보다 더 큰 열팽창률을 갖는 소재로 구성되는 것을 특징으로 하는 전지 모듈.
- 제1 항에서,상기 제2 단열부는, 소정의 임계 온도에 도달하게 되면 체적이 늘어나는 열팽창 소재로 구성되는 전지 모듈.
- 제2 항에서,상기 제2 단열부는, 상기 열팽창 소재는 팽창 페이퍼를 포함하는 전지 모듈.
- 제1 항 또는 제3 항에서,상기 제1 단열부는, 실리콘 계열의 소재로 구성되는 전지 모듈.
- 제2 항에서,상기 복수의 전극 리드를 전기적으로 연결하는 버스바 플레이트를 더 포함하고,상기 제2 단열부는, 일측면이 상기 버스바 플레이트에 고정되는 패드 형태로 구비되는 전지 모듈.
- 제5 항에서,상기 제2 단열부는, 팽창이 개시되기 전에 상기 제1 단열부와 분리된 상태로 배치되는 전지 모듈.
- 제6 항에서,상기 소정의 임계 온도에 도달하여 팽창이 개시되면 상기 제2 단열부의 타측면은 상기 제1 단열부와 접촉하게 되는 전지 모듈.
- 제5 항 내지 제7 항 중 어느 한 항에서,상기 제2 단열부는, 팽창이 개시되기 전에 상기 복수의 전극 리드로부터 각각 분리된 상태로 배치되는 전지 모듈.
- 제8 항에서,상기 소정의 임계 온도에 도달하여 팽창이 개시되면 상기 제2 단열부의 양측면은 각각 상기 복수의 전극 리드와 접촉하게 되는 전지 모듈.
- 제6 항에서,상기 제2 단열부의 팽창이 완료되면, 상기 복수의 전극 리드 사이에 형성되는 공간은 폐색되는 전지 모듈.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22890297.9A EP4415112A1 (en) | 2021-11-04 | 2022-10-28 | Battery module |
CN202280073129.8A CN118202505A (zh) | 2021-11-04 | 2022-10-28 | 电池模块 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020210150268A KR20230064784A (ko) | 2021-11-04 | 2021-11-04 | 전지 모듈 |
KR10-2021-0150268 | 2021-11-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023080566A1 true WO2023080566A1 (ko) | 2023-05-11 |
Family
ID=86241424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2022/016734 WO2023080566A1 (ko) | 2021-11-04 | 2022-10-28 | 전지 모듈 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP4415112A1 (ko) |
KR (1) | KR20230064784A (ko) |
CN (1) | CN118202505A (ko) |
WO (1) | WO2023080566A1 (ko) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013246920A (ja) * | 2012-05-24 | 2013-12-09 | Tigers Polymer Corp | 電池冷却構造 |
KR20200106378A (ko) | 2019-03-04 | 2020-09-14 | 주식회사 엘지화학 | 스웰링 흡수 및 열 차단 기능을 갖는 패드 복합체를 구비하는 배터리 모듈, 이를 포함하는 배터리 팩 및 자동차 |
KR20200107213A (ko) * | 2019-03-06 | 2020-09-16 | 주식회사 엘지화학 | 화염의 외부 노출을 방지할 수 있는 구조를 갖는 ess 모듈 및 이를 포함하는 배터리 팩 |
KR20210011642A (ko) * | 2019-07-23 | 2021-02-02 | 에스케이이노베이션 주식회사 | 배터리 모듈 |
KR20210042480A (ko) * | 2019-10-10 | 2021-04-20 | 주식회사 엘지화학 | 단열부재를 포함하는 전지모듈 및 이를 포함하는 전지팩 |
KR102280326B1 (ko) * | 2021-06-08 | 2021-07-22 | 덕양산업 주식회사 | 열폭주 지연 구조 및 가스 배출 구조를 갖는 배터리 모듈 |
KR20210150268A (ko) | 2020-06-03 | 2021-12-10 | 현대중공업 주식회사 | 선박 이중연료엔진의 가스공급펌프 |
-
2021
- 2021-11-04 KR KR1020210150268A patent/KR20230064784A/ko active Search and Examination
-
2022
- 2022-10-28 WO PCT/KR2022/016734 patent/WO2023080566A1/ko active Application Filing
- 2022-10-28 CN CN202280073129.8A patent/CN118202505A/zh active Pending
- 2022-10-28 EP EP22890297.9A patent/EP4415112A1/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013246920A (ja) * | 2012-05-24 | 2013-12-09 | Tigers Polymer Corp | 電池冷却構造 |
KR20200106378A (ko) | 2019-03-04 | 2020-09-14 | 주식회사 엘지화학 | 스웰링 흡수 및 열 차단 기능을 갖는 패드 복합체를 구비하는 배터리 모듈, 이를 포함하는 배터리 팩 및 자동차 |
KR20200107213A (ko) * | 2019-03-06 | 2020-09-16 | 주식회사 엘지화학 | 화염의 외부 노출을 방지할 수 있는 구조를 갖는 ess 모듈 및 이를 포함하는 배터리 팩 |
KR20210011642A (ko) * | 2019-07-23 | 2021-02-02 | 에스케이이노베이션 주식회사 | 배터리 모듈 |
KR20210042480A (ko) * | 2019-10-10 | 2021-04-20 | 주식회사 엘지화학 | 단열부재를 포함하는 전지모듈 및 이를 포함하는 전지팩 |
KR20210150268A (ko) | 2020-06-03 | 2021-12-10 | 현대중공업 주식회사 | 선박 이중연료엔진의 가스공급펌프 |
KR102280326B1 (ko) * | 2021-06-08 | 2021-07-22 | 덕양산업 주식회사 | 열폭주 지연 구조 및 가스 배출 구조를 갖는 배터리 모듈 |
Also Published As
Publication number | Publication date |
---|---|
CN118202505A (zh) | 2024-06-14 |
EP4415112A1 (en) | 2024-08-14 |
KR20230064784A (ko) | 2023-05-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2021002626A1 (ko) | 배터리 모듈, 이를 포함하는 배터리 랙 및 전력 저장 장치 | |
WO2012091459A2 (ko) | 배터리 모듈 수납장치, 배터리 모듈 온도조절 장치 및 이들을 포함하는 전력 저장 시스템 | |
WO2021107336A1 (ko) | 배터리 모듈, 배터리 팩, 및 자동차 | |
WO2021145706A1 (ko) | 방염 시트를 구비한 배터리 모듈, 이를 포함하는 배터리 랙, 및 전력 저장 시스템 | |
WO2021071138A1 (ko) | 단열부재를 포함하는 전지모듈 및 이를 포함하는 전지팩 | |
WO2010114311A2 (ko) | 안전성이 향상된 전지모듈 | |
WO2013111960A1 (ko) | 안전성이 향상된 전지모듈 및 이를 포함하는 전지팩 | |
WO2019235724A1 (ko) | 개선된 냉각 구조를 갖는 배터리 모듈 | |
WO2019117449A1 (ko) | 배터리 팩 | |
WO2022265360A1 (ko) | 배터리 모듈, 그것을 포함하는 배터리 팩, 및 자동차 | |
WO2019245128A1 (ko) | 배터리 모듈, 이러한 배터리 모듈을 포함하는 배터리 팩 및 이러한 배터리 팩을 포함하는 자동차 | |
WO2022250287A1 (ko) | 전지 모듈 및 이를 포함하는 전지팩 | |
WO2022108281A1 (ko) | 배터리 모듈, 그것을 포함하는 배터리 팩, 및 자동차 | |
WO2021071057A1 (ko) | 전지 모듈 및 이를 포함하는 전지 팩 | |
WO2021096023A1 (ko) | 전지 모듈 및 이를 포함하는 전지 팩 | |
WO2023080566A1 (ko) | 전지 모듈 | |
WO2022158792A1 (ko) | 전지 모듈 및 이를 포함하는 전지 팩 | |
WO2013032145A2 (en) | Battery | |
WO2021025293A1 (ko) | 히팅 부재를 포함하는 전지팩 | |
WO2023022514A1 (ko) | 전지 모듈 및 이를 포함하는 전지 팩 | |
WO2024112047A1 (ko) | 난연 커버가 부착되는 전지 모듈 | |
WO2022231152A1 (ko) | 전지 팩 및 이를 포함하는 디바이스 | |
WO2024043711A1 (ko) | 배터리 모듈 | |
WO2023096193A1 (ko) | 전지 모듈 | |
WO2022169210A1 (ko) | 전지셀들의 온도 균일성이 향상된 전지모듈 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22890297 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202280073129.8 Country of ref document: CN |
|
ENP | Entry into the national phase |
Ref document number: 2024526709 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2022890297 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2022890297 Country of ref document: EP Effective date: 20240510 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |