CN108736102A - The elastic silica aerogel component of new-energy automobile lithium-ion-power cell heat conduction - Google Patents
The elastic silica aerogel component of new-energy automobile lithium-ion-power cell heat conduction Download PDFInfo
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- CN108736102A CN108736102A CN201810730470.1A CN201810730470A CN108736102A CN 108736102 A CN108736102 A CN 108736102A CN 201810730470 A CN201810730470 A CN 201810730470A CN 108736102 A CN108736102 A CN 108736102A
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- China
- Prior art keywords
- silica aerogel
- elastic silica
- new
- energy automobile
- battery core
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Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 95
- 239000004965 Silica aerogel Substances 0.000 title claims abstract description 70
- 238000013016 damping Methods 0.000 claims abstract description 19
- 239000003063 flame retardant Substances 0.000 claims abstract description 13
- 239000002904 solvent Substances 0.000 claims description 43
- 238000003756 stirring Methods 0.000 claims description 24
- 239000000499 gel Substances 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 21
- 238000006073 displacement reaction Methods 0.000 claims description 20
- 239000011240 wet gel Substances 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 17
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 12
- 235000012239 silicon dioxide Nutrition 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 9
- 239000000377 silicon dioxide Substances 0.000 claims description 9
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 239000011889 copper foil Substances 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 7
- 229910021389 graphene Inorganic materials 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000005030 aluminium foil Substances 0.000 claims description 6
- 239000008394 flocculating agent Substances 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 5
- 230000032683 aging Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 5
- JBPBWEKERUNUQY-UHFFFAOYSA-N C(CCCCCCCCCCCCCCCCC)Cl(C)(C)C Chemical compound C(CCCCCCCCCCCCCCCCC)Cl(C)(C)C JBPBWEKERUNUQY-UHFFFAOYSA-N 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 3
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical group CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 3
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical group [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 230000000979 retarding effect Effects 0.000 claims description 2
- 230000035939 shock Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 238000001035 drying Methods 0.000 description 10
- 230000035800 maturation Effects 0.000 description 7
- 239000000178 monomer Substances 0.000 description 7
- 238000000352 supercritical drying Methods 0.000 description 6
- 239000001569 carbon dioxide Substances 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 229910002012 Aerosil® Inorganic materials 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 229920002239 polyacrylonitrile Polymers 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- WWSNLNXXISONLQ-UHFFFAOYSA-N C(CCCCCCCCCCCCCCC)Cl(C)(C)C Chemical compound C(CCCCCCCCCCCCCCC)Cl(C)(C)C WWSNLNXXISONLQ-UHFFFAOYSA-N 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229910003978 SiClx Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- IAIWVQXQOWNYOU-FPYGCLRLSA-N nitrofural Chemical compound NC(=O)N\N=C\C1=CC=C([N+]([O-])=O)O1 IAIWVQXQOWNYOU-FPYGCLRLSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000003075 superhydrophobic effect Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- H01M10/60—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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M10/615—Heating or keeping warm
-
- 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
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- 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
- H01M10/65—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
- H01M10/655—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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
-
- 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
-
- 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
Abstract
The invention discloses a kind of elastic silica aerogel components of new-energy automobile lithium-ion-power cell heat conduction, including：Elastic silica aerogel profiled piece, single battery core and thermally conductive sheet, single battery core are externally connected with thermally conductive sheet, and the single battery core for being connected with thermally conductive sheet is set in the cavity of elastic silica aerogel profiled piece, forms the small module of single battery core.By the above-mentioned means, present invention realization forms effective integrated protection to the single battery core in lithium-ion-power cell module；Elastic silica aerogel profiled piece plays the role of vibration damping protecting against shock to single battery core, and have the function of it is fire-retardant, can so that single battery core operating temperature be in new-energy automobile lithium-ion-power cell heat management system control safety temperature within the scope of；Improve reliability and the safety of the power supply of new-energy automobile lithium-ion-power cell, the development important role of power-assisted China new-energy automobile industry.
Description
Technical field
The present invention relates to new-energy automobile fields, more particularly to a kind of new-energy automobile lithium-ion-power cell heat conduction
Elastic silica aerogel component.
Background technology
The main power source of new-energy automobile derives from electrokinetic cell system, and which determine the drivings of new-energy automobile
Energy, security performance and service life.Especially pure electric automobile, all power all derive from its battery system.Electrokinetic cell system
Generally mainly by battery modules, battery management system BMS, heat management system and some electrically and mechanically system etc. is constituted.It is dynamic
Power battery modules are made of several to hundreds of single battery cores via in parallel and series connection.Vehicle in different driving conditions and
Under environment, single battery core will produce certain heat while exporting electric energy, own temperature made to become due to its own resistance.
High-temperature work environment and fierce collision is destroy lithium ion battery, cause cells burst, explosion it is maximum two big
Arch-criminal, and electrokinetic cell system generates a large amount of heat accumulation in narrow Battery case in the course of work, if heat cannot
Enough quickly to shed in time, the service life of battery modules and performance can be greatly affected, or even thermal runaway occur, caused hot
It fries, the thermal runaway mechanism of upper and monomer grades so more the focusing on of domestic new energy resource power battery system thermal management is radiated
And properties study.It protects concern less effectively insulating, fire-retardant, vibration damping and thermal runaway between battery core, but works as certain battery
When monomer triggers thermal runaway, quantity of heat production abruptly increase, heat dissipation capacity is much smaller than quantity of heat production, and heat transmits to battery around, can cause rapidly
The extensive thermal runaway of periphery battery, the thermal runaway rank that formation is then traveled to entire battery system by the triggering of monomer thermal runaway are drawn
The security risk risen.It is therefore desirable to increase heat-insulated vibration damping profiled piece between core of lithium ion cell monomer, slow down thermal runaway
Spread speed takes further fire protection to race against time.
Invention content
The invention mainly solves the technical problem of providing a kind of bullets of new-energy automobile lithium-ion-power cell heat conduction
Property aerosil component, the operating temperature for capableing of single battery core are in new-energy automobile lithium-ion-power cell heat pipe
Within the scope of the temperature of the safety of reason system control.
In order to solve the above technical problems, one aspect of the present invention is：There is provided a kind of new-energy automobile lithium from
The elastic silica aerogel component of sub- power battery heat conduction, including：Elastic silica aerogel profiled piece, monomer electricity
Chi Xin and thermally conductive sheet, single battery core are externally connected with thermally conductive sheet, and the single battery core for being connected with thermally conductive sheet is set to elastic titanium dioxide
In the cavity of silica aerogel profiled piece, the small module of single battery core is formed.
In a preferred embodiment of the present invention, the small module of multigroup single battery core carries out the assembled big module of formation.
In a preferred embodiment of the present invention, the exit of the thermally conductive sheet in each small module of single battery core is closely attached to bullet
Between the bottom and the heat exchanger of new-energy automobile heat management system of property aerosil part or it is embedded in new energy
In the heat exchanger of source automotive thermal tube reason system.
In a preferred embodiment of the present invention, the single battery core is rectangle or cylindrical single battery core.
In a preferred embodiment of the present invention, thermally conductive sheet is graphene thermally conductive sheet, carbon thermally conductive sheet, copper foil thermally conductive sheet and aluminium
It is one or more in foil thermally conductive sheet.
In a preferred embodiment of the present invention, the manufacturing method of elastic silica aerogel profiled piece：It is first depending on
The configuration design of the heat-insulated vibration damping profiled piece of single battery core goes out mold, next silicon dioxide gel filling liquid is designed
Wet gel is formed after ageing in mold, solvent displacement at least twice is carried out with the smaller solvent of surface tension coefficient, displaces wet
It after moisture content in gel, is dried, demoulding obtains elastic silica aerogel profiled piece.
In a preferred embodiment of the present invention, the preparation method of silicon dioxide gel liquid includes being added to flocculating agent
Solvent in uniform stirring, methyltrimethoxysilane and silicon source is then added, stirs evenly, the gel accelerating agent of addition, then
It is secondary to stir evenly, obtain silicon dioxide gel liquid.
In a preferred embodiment of the present invention, silicon source includes dimethyldimethoxysil,ne, ethyl orthosilicate, silicic acid second
It is one or more in ester and silicic acid；Gel accelerating agent is 1,2- propylene oxide, and flocculating agent is hexadecyltrimethylammonium chloride
Or octadecyltrimethylammonium chloride；Solvent is dilute hydrochloric acid solution.
In a preferred embodiment of the present invention, it is also added while gel accelerating agent is added in sol liquid fire-retardant
Agent is aged in mold with sol liquid and forms wet gel, carries out solvent at least twice and replaces, being made after dry has fire-retardant work(
The elastic silica aerogel profiled piece of energy.
In a preferred embodiment of the present invention, short glass fiber or oxidization fiber staple fiber are added in sol liquid, with
Ageing forms wet gel in sol liquid mold, carries out solvent at least twice and replaces, strengthened elastic two are made after dry
Silica aerogel profiled piece.
The beneficial effects of the invention are as follows：Present invention realization is formed with the single battery core in lithium-ion-power cell module
The integrated protection of effect；Elastic silica aerogel profiled piece plays the role of vibration damping protecting against shock to single battery core, and has
There is fire-retardant function, personnel and property loss caused by avoiding single battery core thermal runaway from expanding；When single battery core was in
Battery core heat is quickly exported to heat management system radiating and cooling, at single battery core by high-efficiency heat conduction material when high temperature
In too low temperature（Subzero）When the heat lift battery core temperature of heat management system is quickly introduced by high-efficiency heat conduction material,
So that the operating temperature of single battery core is in the temperature of the safety of new-energy automobile lithium-ion-power cell heat management system control
It spends in range；Improve reliability and the safety of the power supply of new-energy automobile lithium-ion-power cell, power-assisted China new energy vapour
The development important role of vehicle industry.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, wherein：
Fig. 1 is that the elastic silica aerogel component one of new-energy automobile lithium-ion-power cell heat conduction of the present invention is preferably real
Apply the structural schematic diagram of example；
Fig. 2 is bowing for the elastic silica aerogel component of new-energy automobile lithium-ion-power cell heat conduction shown in FIG. 1
View；
Fig. 3 is after the elastic silica aerogel component of the heat conduction of new-energy automobile lithium-ion-power cell shown in Fig. 1 assembles
Structural schematic diagram；
Fig. 4 is bowing for the elastic silica aerogel component of new-energy automobile lithium-ion-power cell heat conduction shown in Fig. 3
View；
Fig. 5 is that the elastic silica aerogel component of new-energy automobile lithium-ion-power cell heat conduction of the present invention is another preferably
The structural schematic diagram of embodiment；
Fig. 6 is bowing for the elastic silica aerogel component of new-energy automobile lithium-ion-power cell heat conduction shown in fig. 5
View；
Fig. 7 is after the elastic silica aerogel component of the heat conduction of new-energy automobile lithium-ion-power cell shown in Fig. 5 assembles
Structural schematic diagram；
Fig. 8 is bowing for the elastic silica aerogel component of new-energy automobile lithium-ion-power cell heat conduction shown in Fig. 7
View.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
All other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
The embodiment of the present invention includes：
A kind of elastic silica aerogel component of new-energy automobile lithium-ion-power cell heat conduction, including：Elastic dioxy
SiClx aeroge profiled piece 1, single battery core 2 and thermally conductive sheet 3, thermally conductive sheet 3 is graphene thermally conductive sheet, carbon thermally conductive sheet, copper foil are led
It is one or more in backing and aluminium foil thermally conductive sheet.
With heat-conducting glue, organically bonding fits together single battery core 2 with thermally conductive sheet 3, realizes to lithium-ion-power cell
Single battery core 2 in module forms effective integrated protection.
The single battery core 2 for being connected with thermally conductive sheet is set in the cavity of elastic silica aerogel profiled piece 1, is formed single
2 small module of body battery.2 small module of multigroup single battery core carries out the assembled big module of formation.
Elastic silica aerogel profiled piece 1 plays the role of vibration damping protecting against shock to single battery core 2, and with resistance
The function of combustion, personnel and property loss caused by avoiding 2 thermal runaway of single battery core from expanding.
2 small module of multigroup single battery core carries out the assembled big module of formation.When assembled in 2 small module of each single battery core
The exit of thermally conductive sheet is closely attached to the bottom of elastic silica aerogel part and the heat of new-energy automobile heat management system is handed over
Between parallel operation or it is embedded in the heat exchanger of new-energy automobile heat management system.
When single battery core 2 is in excessively high temperature（Such as>35℃）When by high-efficiency heat conduction material quickly export battery core heat
Heat management system radiating and cooling is measured, when single battery core 2 is in too low temperature（Subzero）When pass through high-efficiency heat conduction material
Material quickly introduces the heat lift battery core temperature of heat management system so that the operating temperature of single battery core 2 is in new energy vapour
Within the scope of the temperature of the safety of vehicle lithium-ion-power cell heat management system control（-5℃~45℃）；The novelty new-energy automobile
The elastic silica aerogel component and manufacturing method of lithium-ion-power cell heat conduction, improve new-energy automobile lithium ion
The battery-powered reliability of power electric and safety, the development important role of power-assisted China new-energy automobile industry.
Wherein, single battery core 2 is rectangle or cylindrical single battery core.As shown in Figs 1-4, single battery core is length
Rectangular, as viewed in figures 5-8, single battery core 2 is cylinder.
The manufacturing method of elastic silica aerogel profiled piece 1：It is first depending on 2 heat-insulated vibration damping profiled piece of single battery core
Configuration design go out mold, next silicon dioxide gel filling liquid forms wet gel after being aged in designed mold,
Solvent displacement at least twice is carried out with the smaller solvent of surface tension coefficient（Alcohol or isopropanol etc.）, displace in wet gel
Moisture content after, using dry in dry in the low temperature drying in baking oven or microwave equipment or overcritical device, demoulding obtains bullet
Property aerosil profiled piece.
Ageing is that colloidal sol pours into mold, the low temperature maturation gel in the baking oven of 30 ~ 65 degrees Celsius of temperature.
Solvent displacement is to take out mold every 12 hours, the solvent being precipitated with alcohol displacement wet gel.
Drying includes constant pressure and dry, microwave drying or supercritical drying, constant pressure and dry, microwave drying temperature be 35 ~ 65
Degree Celsius, the drying time of supercritical drying is 3 ~ 9 hours, 45 ~ 90 degrees Celsius of temperature, postcritical carbon dioxide or alcohol
Pressure be 6MPa ~ 35MPa, the gas flow of postcritical carbon dioxide or alcohol is 150 ~ 180L/h.
The preparation method of silicon dioxide gel liquid includes that the flocculating agent of 100 ~ 120ml is added to the molten of 800 ~ 1000ml
Then uniform stirring in agent is added the silicon source of the methyltrimethoxysilane and 90 ~ 120ml of 160 ~ 180ml, stirs evenly, add
The gel accelerating agent for entering 150 ~ 170ml is again stirring for uniformly, obtaining silicon dioxide gel liquid.Uniform stirring solution turns
Speed is 50 ~ 300 turns/min.
Silicon source includes one or more in dimethyldimethoxysil,ne, ethyl orthosilicate, silester and silicic acid；It is solidifying
Promoter for rubber is 1,2- propylene oxide, and flocculating agent is hexadecyltrimethylammonium chloride or octadecyltrimethylammonium chloride；It is molten
Agent is dilute hydrochloric acid solution, a concentration of 1.5 × 10-5mol/ml-3 × 10-5mol/ml.
It is also added fire retardant while gel accelerating agent is added in sol liquid, preferably environment friendly halogen-free fireproof agent, with
Sol liquid is aged in mold and forms wet gel, carries out solvent at least twice and replaces, is made with flame retarding function after dry
Elastic silica aerogel profiled piece 1.
Environment friendly halogen-free fireproof agent is to integrate the gentle phosphorus nitrogen system's expanding fire retardant for being derived from one of carbon source, acid source or as melamine
And its compound of phosphorus, the dosage of phosphorus nitrogen system expanding fire retardant is account for colloidal sol quality 8% ~ 20%, the change of melamine and its phosphorus
The dosage for closing object is account for colloidal sol quality 8% ~ 15%.
Ageing in short glass fiber or oxidization fiber staple fiber, with sol liquid mold is added in sol liquid and forms wet coagulate
Glue carries out solvent at least twice and replaces, strengthened elastic silica aerogel profiled piece 1 is made after dry.
Embodiment 1：The manufacturing method of elastic silica aerogel profiled piece 1：By the cetyl trimethyl chlorine of 100ml
To change ammonium and is added to uniform stirring in the salt sour solvent of a concentration of 1.5 × 10-5mol/ml of 800ml, speed of agitator is 50 turns/min,
Then the dimethyldimethoxysil,ne of the methyltrimethoxysilane and 90ml of 160ml is added, is stirred into colloidal sol, stirs
Rotating speed is 50 turns/min, and 1, the 2- propylene oxide of 150ml is added, and is again stirring for uniformly at colloidal sol, and speed of agitator is 50 turns/min,
Colloidal sol pours into mold, the low temperature maturation gel in the baking oven of 30 degrees Celsius of temperature, then carries out solvent displacement twice, solvent displacement
It is to take out mold every 12 hours, the solvent being precipitated with alcohol displacement wet gel obtains blocky wet solidifying after solvent is sufficiently displaced from
Glue, and the heat-insulated elasticity two of non-pressure process manufacture vibration damping is made in low temperature drying to xerogel, 35 degrees Celsius of oven temperature in baking oven
Silica aerogel profiled piece 1.
Embodiment 2：The manufacturing method of elastic silica aerogel profiled piece 1：By the octadecyl trimethyl chlorine of 110ml
Change ammonium and be added to uniform stirring in the salt sour solvent of a concentration of 2 × 10-5mol/ml of 900ml, speed of agitator is 180 turns/min, so
The ethyl orthosilicate of the methyltrimethoxysilane and 110ml of 170ml is added afterwards, is stirred into colloidal sol, speed of agitator 175
Turn/min, 1, the 2- propylene oxide of 160ml is added, is again stirring for uniformly at colloidal sol, speed of agitator is 170 turns/min, and colloidal sol falls
Enter in mold, the low temperature maturation gel in the baking oven of 45 degrees Celsius of temperature, then carry out solvent displacement three times, solvent displacement be every
Taking out mold within 12 hours, the solvent being precipitated with alcohol displacement wet gel obtains blocky wet gel after solvent is sufficiently displaced from, and
Low temperature drying to xerogel, 48 degrees Celsius of oven temperature is made micro-wave drying legal system and makes vibration damping in microwave oven or drying tunnel
Heat-insulated elastic silica aerogel profiled piece 1.
Embodiment 3：The manufacturing method of elastic silica aerogel profiled piece 1：By the octadecyl trimethyl chlorine of 120ml
To change ammonium and is added to uniform stirring in the salt sour solvent of a concentration of 3 × 10-5mol/ml of 1000ml, speed of agitator is 300 turns/min,
Then the silester of the methyltrimethoxysilane and 120ml of 180ml is added, is stirred into colloidal sol, speed of agitator 300
Turn/min, 1, the 2- propylene oxide of 170ml is added, is again stirring for uniformly at colloidal sol, speed of agitator is 300 turns/min, and colloidal sol falls
Enter in mold, the low temperature maturation gel in the baking oven of 65 degrees Celsius of temperature, then carry out six solvents displacements, solvent displacement be every
Taking out mold within 12 hours, the solvent being precipitated with alcohol displacement wet gel obtains blocky wet gel after solvent is sufficiently displaced from, and
Supercritical drying is carried out in supercritical drying device equipment 9 hours, 90 degrees Celsius of postcritical temperature, postcritical pressure dioxy
The gas flow 180L/h of the pressure 35MPa of change carbon or alcohol, postcritical carbon dioxide or alcohol is made super and faces to xerogel
The heat-insulated elastic silica aerogel profiled piece 1 of the vibration damping of boundary seasoning manufacture.
Embodiment 4：The manufacturing method of elastic silica aerogel profiled piece 1：By the octadecyl trimethyl chlorine of 118ml
Change ammonium and be added to uniform stirring in the salt sour solvent of a concentration of 3 × 10-5mol/ml of 850ml, speed of agitator is 280 turns/min, so
The dimethyldimethoxysil,ne of the methyltrimethoxysilane and 108ml of 165ml is added afterwards, is stirred into colloidal sol, stirs
Rotating speed is 280 turns/min, appropriate oxidization fiber staple fiber is added, preferably polyacrylonitrile (PAN) base oxidization fiber continues to stir, and adds
1, the 2- propylene oxide of 165ml is again stirring for uniformly at colloidal sol, and speed of agitator is 250 turns/min, and colloidal sol pours into mold,
Low temperature maturation gel in the baking oven that 60 degrees Celsius of temperature, then solvent displacement three times is carried out, solvent displacement was taken out every 12 hours
Mold, the solvent being precipitated with alcohol displacement wet gel, obtains blocky wet gel, and low in baking oven after solvent is sufficiently displaced from
Temperature is dry to xerogel, and it is different that the heat-insulated elastic silica aerogel of strengthened vibration damping is made in 63 degrees Celsius of oven temperature
Type part 1.
Polyacrylonitrile (PAN) base oxidization fiber is by carbon containing organic fiber precursor under air dielectric, by tens to several
The preoxidation process of percentage clock, and oxidization fiber is obtained, good flame retardation effect.
Embodiment 5：The manufacturing method of elastic silica aerogel profiled piece 1：By the cetyl trimethyl chlorine of 115ml
Change ammonium and be added to uniform stirring in the salt sour solvent of a concentration of 3 × 10-5mol/ml of 950ml, speed of agitator is 250 turns/min, so
The ethyl orthosilicate of the methyltrimethoxysilane and 110ml of 175ml is added afterwards, is stirred into colloidal sol, speed of agitator 220
Turn/min, appropriate short glass fiber is added and continues to stir, adds 1, the 2- propylene oxide and phosphorus nitrogen system expandable flame retardant of 160ml
Agent is again stirring for uniformly at colloidal sol, and speed of agitator is 220 turns/min, and colloidal sol pours into mold, in 60 degrees Celsius of baking oven of temperature
Interior low temperature maturation gel, then solvent displacement three times is carried out, solvent displacement is to take out mold every 12 hours, wet solidifying with alcohol displacement
The solvent that glue is precipitated, obtains blocky wet gel after solvent is sufficiently displaced from, and super face is carried out in supercritical drying device equipment
Boundary is dried 8 hours, 87 degrees Celsius of postcritical temperature, the pressure 30MPa of postcritical pressure carbon dioxide or alcohol, overcritical
Carbon dioxide or alcohol gas flow 180L/h to xerogel, strengthened fire retardant elastic aerosil is made
Profiled piece 1.
Short glass fiber as strengthen elastic silica aerogel supporting material in application, maximum feature is tension
Intensity is big, heat-resist, and temperature does not influence intensity up at 300 DEG C.There is excellent electrical insulating property, is advanced electrical isolation material
Material, is also used for heat-insulating material and fire-proof shield material.
In embodiment 1-5, elastic silica aerogel profiled piece 11 is a kind of micro-nano permeability elastomer vibration damping two
Silica aerogel new varieties material is the most light solid material of current engineer application, can make new-energy automobile light weight
Change more energy efficient.The various profiled piece thermal coefficients of high resiliency aerosil being made from it are 0.015 ~ 0.04 W/ (m
K), even lower, and with super-hydrophobic, use temperature range is wide（-80~350℃）, it is long lifespan, resistance to compression, nontoxic.It is protected with tradition
Warm heat-barrier material is compared, and under same heat insulation, aerogel material thickness only has the 1/2-1/5 of conventional vacuum heat-barrier material.Base
In the demand of aeroge These characteristics and power battery thermal insulation board, airsetting film is considered as that can be applied to new-energy automobile at present
And the most thin most efficient heat preserving and insulating material of power battery.
Following table is elastic silica aerogel profiled piece 1 and the heat-insulated foam performance comparisons of IXPE：
| Performance indicator | The elastic silica aerogel profiled piece 1 of Jiangsu Pan Asia Wei Tou Science and Technology Co., Ltd. | PU, XPE, IXPE foam class |
| Density (Kg/m3) | 80~150 | 200（5 times of foaming） |
| Thermal coefficient (W/mk) | 0.017~0.024（Supercritical drying）, 0.024 ~ 0.04（Non-pressure process or micro-wave drying method） | 0.095~0.3 |
| Temperature in use (DEG C) | -80~350℃ | -40~120℃ |
| Water absorption rate room temperature is for 24 hours (%) | It is hydrophobic | <0.5 |
| Environment-protecting and non-poisonous property | ROHS standards | ROHS standards |
| 120 DEG C of high temperature deformation, for 24 hours (%) | Nothing | Shrink 10% |
| Compression rebound rate（Index related with vibration damping） | 92% | 0~15% |
| General thickness（mm） | 0.5/1/2/3/4/5/6/7/8/9/10 | 0.5/1/3/10 |
As shown above, the damping behavior of elastic silica aerogel profiled piece 1 meets the lithium ion of national new-energy automobile
Power battery standard criterion, damping behavior are much better than PU, XPE, IXPE foam class；
The density of elastic silica aerogel profiled piece 1 is low more than foam, and it is energy saving to be conducive to new-energy automobile lightweight, bullet
Property vibration damping be conducive to protect electrical core of power battery and module to be impacted from vehicle pitching, the power supply for improving power battery is reliable
Property.
New-energy automobile lithium-ion-power cell elastic silica aerogel profiled piece 1, with single battery core 2,
Graphene thermally conductive sheet or carbon thermally conductive sheet or copper foil thermally conductive sheet or aluminium foil thermally conductive sheet etc. organically fit together, and realize to lithium ion
Single battery core 2 in power battery module forms effective integrated protection；Elastic silica aerogel profiled piece 1 is to monomer
Battery 2 plays the role of vibration damping protecting against shock, and have the function of it is fire-retardant, avoid 2 thermal runaway of single battery core expansion cause
Personnel and property loss；Single battery core 2 and graphene thermally conductive sheet or carbon thermally conductive sheet or copper foil thermally conductive sheet or aluminium foil thermally conductive sheet
It is organic it is closely connected fit together, when single battery core 2 is in excessively high temperature（Such as>35℃）When it is quick by high-efficiency heat conduction material
Battery core heat is exported to heat management system radiating and cooling, when single battery core 2 is in too low temperature（Subzero）When pass through
High-efficiency heat conduction material quickly introduces the heat lift battery core temperature of heat management system so that at the operating temperature of single battery core 2
Within the scope of the temperature of the safety of new-energy automobile lithium-ion-power cell heat management system control（-5℃~45℃）；The novelty
The elastic silica aerogel component and manufacturing method of new-energy automobile lithium-ion-power cell heat conduction, improve new energy
The reliability of automobile lithium-ion-power cell power supply and safety, the development of power-assisted China new-energy automobile industry have important work
With.
The assembly process of the elastic silica aerogel component of new-energy automobile lithium-ion-power cell heat conduction includes：
The preparations such as single battery core 2, graphene thermally conductive sheet, carbon thermally conductive sheet, copper foil thermally conductive sheet, aluminium foil thermally conductive sheet or fire-retardant heat-conducting glue,
Graphene thermally conductive sheet or carbon thermally conductive sheet or copper foil thermally conductive sheet or aluminium foil thermally conductive sheet with the heat conduction gluing knot group of single battery core 2
This engaging member is packed into the cavity of elastic silica aerogel profiled piece 1 by dress, the small module of single battery core is formed, monomer
The small module of battery core is once assembled into big module, and the small module of the last one single battery core is closed with elastic silica aerogel plate
Heat-insulated side is needed, forms the big module power supply unit of new-energy automobile lithium-ion-power cell as shown in Fig. 3,4,7,8.
By forming new-energy automobile lithium-ion-power cell group, new-energy automobile lithium after several big module power supply unit assemblings
The exit of the thermally conductive sheet of ion battery group can be closely attached to bottom and the new energy of elastic silica aerogel part
Between the heat exchanger of automotive thermal tube reason system or it is embedded in the heat exchanger of new-energy automobile heat management system, thermally conductive sheet
3 adjust the temperature of lithium-ion-power cell single battery core 2 and are allowed to performance and effectively play to play, and improve power supply reliability
With personnel, the safety of property, the competitiveness of China's new-energy automobile is improved.
Elastic silica aerogel profiled piece 1 and Heat Conduction Material are in new-energy automobile field, except applied to power battery
Outside heat-insulated vibration damping between battery core, apply also for heat-insulation shockproof of the module between shell, battery case external insulating layer and
High temperature insulating layer.With the maturation of 1 technique of elastic silica aerogel profiled piece and production-scale expansion, price is inevitable
It can decline, there is cost performance competitive advantage, the application and market penetration rate in new-energy automobile power battery also will be with
The industry of new-energy automobile increases and increases sharply.The product power-assisted is promoted the power supply safety of China's new-energy automobile, reliability and
Global competitiveness.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (10)
1. a kind of elastic silica aerogel component of new-energy automobile lithium-ion-power cell heat conduction, which is characterized in that
Including：Elastic silica aerogel profiled piece, single battery core and thermally conductive sheet, single battery core are externally connected with thermally conductive sheet, even
The single battery core for being connected to thermally conductive sheet is set in the cavity of elastic silica aerogel profiled piece, forms the small mould of single battery core
Group.
2. the elastic silica aerogel portion of new-energy automobile lithium-ion-power cell heat conduction according to claim 1
Part, which is characterized in that multigroup small module of single battery core carries out the assembled big module of formation.
3. the elastic silica aerogel portion of new-energy automobile lithium-ion-power cell heat conduction according to claim 1
Part, which is characterized in that the exit of the thermally conductive sheet in each small module of single battery core is closely attached to elastic silica aerogel zero
Between the bottom and the heat exchanger of new-energy automobile heat management system of part or it is embedded in new-energy automobile heat management system
In heat exchanger.
4. the elastic silica aerogel portion of new-energy automobile lithium-ion-power cell heat conduction according to claim 1
Part, which is characterized in that the single battery core is rectangle or cylindrical single battery core.
5. the elastic silica aerogel portion of new-energy automobile lithium-ion-power cell heat conduction according to claim 1
Part, which is characterized in that thermally conductive sheet be graphene thermally conductive sheet, carbon thermally conductive sheet, copper foil thermally conductive sheet and one kind in aluminium foil thermally conductive sheet or
It is a variety of.
6. the elastic silica aerogel portion of new-energy automobile lithium-ion-power cell heat conduction according to claim 1
Part, which is characterized in that the manufacturing method of elastic silica aerogel profiled piece：It is different to be first depending on the heat-insulated vibration damping of single battery core
The configuration design of type part goes out mold, next silicon dioxide gel filling liquid forms wet solidifying after being aged in designed mold
Glue carries out solvent displacement at least twice with the smaller solvent of surface tension coefficient, after displacing the moisture content in wet gel, is done
Dry, demoulding obtains elastic silica aerogel profiled piece.
7. the elastic silica aerogel portion of new-energy automobile lithium-ion-power cell heat conduction according to claim 6
Part, which is characterized in that the preparation method of silicon dioxide gel liquid includes uniform stirring in the solvent for being added to flocculating agent, so
Methyltrimethoxysilane and silicon source are added afterwards, stirs evenly, the gel accelerating agent of addition, is again stirring for uniformly, obtaining two
Silica sol liquid.
8. the elastic silica aerogel portion of new-energy automobile lithium-ion-power cell heat conduction according to claim 7
Part, which is characterized in that silicon source include one kind in dimethyldimethoxysil,ne, ethyl orthosilicate, silester and silicic acid or
It is a variety of；Gel accelerating agent is 1,2- propylene oxide, and flocculating agent is hexadecyltrimethylammonium chloride or octadecyl trimethyl chlorine
Change ammonium；Solvent is dilute hydrochloric acid solution.
9. the elastic silica aerogel portion of new-energy automobile lithium-ion-power cell heat conduction according to claim 6
Part, which is characterized in that fire retardant is also added while gel accelerating agent is added in sol liquid, with sol liquid in mold
Ageing forms wet gel, carries out solvent at least twice and replaces, the elastic silica airsetting with flame retarding function is made after dry
Glue profiled piece.
10. the elastic silica aerogel of new-energy automobile lithium-ion-power cell heat conduction according to claim 6
Component, which is characterized in that be added in short glass fiber or oxidization fiber staple fiber, with sol liquid mold and be aged in sol liquid
Wet gel is formed, solvent at least twice is carried out and replaces, strengthened elastic silica aerogel profiled piece is made after dry.
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| CN109941153A (en) * | 2019-04-19 | 2019-06-28 | 衢州职业技术学院 | A kind of highly-safe electric car coupling heat management system |
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| EP3651234A1 (en) * | 2018-11-07 | 2020-05-13 | The Boeing Company | Multifunctional battery packaging and insulation |
| WO2020186495A1 (en) | 2019-03-21 | 2020-09-24 | Hefei Guoxuan High-Tech Power Energy Co., Ltd. | Multilayer composite materials with anisotropic thermal conductivity for high safety pack design |
| CN111934049A (en) * | 2020-07-13 | 2020-11-13 | 上海瓴荣材料科技有限公司 | Laminate polymer battery module structure that car was used |
| EP4354592A1 (en) * | 2022-10-13 | 2024-04-17 | BAE SYSTEMS plc | A barrier for separating cells of a battery |
| WO2024079440A1 (en) * | 2022-10-13 | 2024-04-18 | Bae Systems Plc | A barrier for separating cells of a battery |
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