CN118610650B - Heat-resistant protection structure, battery module and electric equipment - Google Patents
Heat-resistant protection structure, battery module and electric equipment Download PDFInfo
- Publication number
- CN118610650B CN118610650B CN202411081578.4A CN202411081578A CN118610650B CN 118610650 B CN118610650 B CN 118610650B CN 202411081578 A CN202411081578 A CN 202411081578A CN 118610650 B CN118610650 B CN 118610650B
- Authority
- CN
- China
- Prior art keywords
- heat
- area
- resistant protective
- protective structure
- heat absorbing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000001681 protective effect Effects 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims description 70
- 238000010521 absorption reaction Methods 0.000 claims description 64
- 239000012782 phase change material Substances 0.000 claims description 32
- 230000007704 transition Effects 0.000 claims description 26
- 230000000903 blocking effect Effects 0.000 claims description 25
- 230000005855 radiation Effects 0.000 claims description 22
- 230000008859 change Effects 0.000 claims description 18
- 230000004913 activation Effects 0.000 claims description 13
- 239000012071 phase Substances 0.000 claims description 13
- 239000004964 aerogel Substances 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 12
- 238000005338 heat storage Methods 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 10
- 239000011232 storage material Substances 0.000 claims description 10
- 230000007423 decrease Effects 0.000 claims description 7
- 239000012074 organic phase Substances 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- MFEVGQHCNVXMER-UHFFFAOYSA-L 1,3,2$l^{2}-dioxaplumbetan-4-one Chemical compound [Pb+2].[O-]C([O-])=O MFEVGQHCNVXMER-UHFFFAOYSA-L 0.000 claims description 3
- 229910000905 alloy phase Inorganic materials 0.000 claims description 3
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 claims description 3
- 229910001863 barium hydroxide Inorganic materials 0.000 claims description 3
- ZJRXSAYFZMGQFP-UHFFFAOYSA-N barium peroxide Chemical compound [Ba+2].[O-][O-] ZJRXSAYFZMGQFP-UHFFFAOYSA-N 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- UUCCCPNEFXQJEL-UHFFFAOYSA-L strontium dihydroxide Chemical compound [OH-].[OH-].[Sr+2] UUCCCPNEFXQJEL-UHFFFAOYSA-L 0.000 claims description 3
- 229910001866 strontium hydroxide Inorganic materials 0.000 claims description 3
- 229910000003 Lead carbonate Inorganic materials 0.000 claims description 2
- 239000000920 calcium hydroxide Substances 0.000 claims description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 2
- 239000000347 magnesium hydroxide Substances 0.000 claims description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 2
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 claims description 2
- WWILHZQYNPQALT-UHFFFAOYSA-N 2-methyl-2-morpholin-4-ylpropanal Chemical compound O=CC(C)(C)N1CCOCC1 WWILHZQYNPQALT-UHFFFAOYSA-N 0.000 claims 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims 1
- 229910017052 cobalt Inorganic materials 0.000 claims 1
- 239000010941 cobalt Substances 0.000 claims 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims 1
- 229910012375 magnesium hydride Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 26
- 239000010410 layer Substances 0.000 description 147
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 20
- 238000009413 insulation Methods 0.000 description 17
- 239000011734 sodium Substances 0.000 description 16
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 14
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 12
- 230000007480 spreading Effects 0.000 description 12
- 238000009826 distribution Methods 0.000 description 11
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 10
- 238000004088 simulation Methods 0.000 description 10
- 239000011780 sodium chloride Substances 0.000 description 10
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 8
- 239000011358 absorbing material Substances 0.000 description 8
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 description 8
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 8
- 230000002829 reductive effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 229910013553 LiNO Inorganic materials 0.000 description 6
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- -1 magnesium dihydride Chemical compound 0.000 description 6
- 229910000027 potassium carbonate Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000002401 inhibitory effect Effects 0.000 description 5
- 239000012774 insulation material Substances 0.000 description 5
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 5
- 229910052808 lithium carbonate Inorganic materials 0.000 description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 description 5
- 239000004317 sodium nitrate Substances 0.000 description 5
- 235000010344 sodium nitrate Nutrition 0.000 description 5
- UBEWDCMIDFGDOO-UHFFFAOYSA-N cobalt(2+);cobalt(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Co+2].[Co+3].[Co+3] UBEWDCMIDFGDOO-UHFFFAOYSA-N 0.000 description 4
- 239000001103 potassium chloride Substances 0.000 description 4
- 235000011164 potassium chloride Nutrition 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 229940001593 sodium carbonate Drugs 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 229910001629 magnesium chloride Inorganic materials 0.000 description 3
- 239000004323 potassium nitrate Substances 0.000 description 3
- 235000010333 potassium nitrate Nutrition 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 2
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 description 2
- ALYNCZNDIQEVRV-UHFFFAOYSA-N 4-aminobenzoic acid Chemical compound NC1=CC=C(C(O)=O)C=C1 ALYNCZNDIQEVRV-UHFFFAOYSA-N 0.000 description 2
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 2
- KXDAEFPNCMNJSK-UHFFFAOYSA-N Benzamide Chemical compound NC(=O)C1=CC=CC=C1 KXDAEFPNCMNJSK-UHFFFAOYSA-N 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 description 2
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- 239000005909 Kieselgur Substances 0.000 description 2
- FZERHIULMFGESH-UHFFFAOYSA-N N-phenylacetamide Chemical compound CC(=O)NC1=CC=CC=C1 FZERHIULMFGESH-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 229910020489 SiO3 Inorganic materials 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- DGLRDKLJZLEJCY-UHFFFAOYSA-L disodium hydrogenphosphate dodecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].OP([O-])([O-])=O DGLRDKLJZLEJCY-UHFFFAOYSA-L 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- IAQLJCYTGRMXMA-UHFFFAOYSA-M lithium;acetate;dihydrate Chemical compound [Li+].O.O.CC([O-])=O IAQLJCYTGRMXMA-UHFFFAOYSA-M 0.000 description 2
- 229960002337 magnesium chloride Drugs 0.000 description 2
- MFUVDXOKPBAHMC-UHFFFAOYSA-N magnesium;dinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MFUVDXOKPBAHMC-UHFFFAOYSA-N 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- CPJSUEIXXCENMM-UHFFFAOYSA-N phenacetin Chemical compound CCOC1=CC=C(NC(C)=O)C=C1 CPJSUEIXXCENMM-UHFFFAOYSA-N 0.000 description 2
- 239000011698 potassium fluoride Substances 0.000 description 2
- UOHMMEJUHBCKEE-UHFFFAOYSA-N prehnitene Chemical compound CC1=CC=C(C)C(C)=C1C UOHMMEJUHBCKEE-UHFFFAOYSA-N 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- DSSYKIVIOFKYAU-XCBNKYQSSA-N (R)-camphor Chemical compound C1C[C@@]2(C)C(=O)C[C@@H]1C2(C)C DSSYKIVIOFKYAU-XCBNKYQSSA-N 0.000 description 1
- XIOUDVJTOYVRTB-UHFFFAOYSA-N 1-(1-adamantyl)-3-aminothiourea Chemical compound C1C(C2)CC3CC2CC1(NC(=S)NN)C3 XIOUDVJTOYVRTB-UHFFFAOYSA-N 0.000 description 1
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- UGHIQYNKFXEQPU-UHFFFAOYSA-N 2,3-dichloro-1,4-dimethylbenzene Chemical group CC1=CC=C(C)C(Cl)=C1Cl UGHIQYNKFXEQPU-UHFFFAOYSA-N 0.000 description 1
- RMBFBMJGBANMMK-UHFFFAOYSA-N 2,4-dinitrotoluene Chemical compound CC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O RMBFBMJGBANMMK-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- BDKLKNJTMLIAFE-UHFFFAOYSA-N 2-(3-fluorophenyl)-1,3-oxazole-4-carbaldehyde Chemical compound FC1=CC=CC(C=2OC=C(C=O)N=2)=C1 BDKLKNJTMLIAFE-UHFFFAOYSA-N 0.000 description 1
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- WLJVXDMOQOGPHL-PPJXEINESA-N 2-phenylacetic acid Chemical compound O[14C](=O)CC1=CC=CC=C1 WLJVXDMOQOGPHL-PPJXEINESA-N 0.000 description 1
- PJAIMBYNTXNOCN-UHFFFAOYSA-N 3,6-dibromo-1h-indole Chemical compound BrC1=CC=C2C(Br)=CNC2=C1 PJAIMBYNTXNOCN-UHFFFAOYSA-N 0.000 description 1
- XNDZQQSKSQTQQD-UHFFFAOYSA-N 3-methylcyclohex-2-en-1-ol Chemical compound CC1=CC(O)CCC1 XNDZQQSKSQTQQD-UHFFFAOYSA-N 0.000 description 1
- GZFGOTFRPZRKDS-UHFFFAOYSA-N 4-bromophenol Chemical compound OC1=CC=C(Br)C=C1 GZFGOTFRPZRKDS-UHFFFAOYSA-N 0.000 description 1
- ZHJGWYRLJUCMRT-UHFFFAOYSA-N 5-[6-[(4-methylpiperazin-1-yl)methyl]benzimidazol-1-yl]-3-[1-[2-(trifluoromethyl)phenyl]ethoxy]thiophene-2-carboxamide Chemical compound C=1C=CC=C(C(F)(F)F)C=1C(C)OC(=C(S1)C(N)=O)C=C1N(C1=C2)C=NC1=CC=C2CN1CCN(C)CC1 ZHJGWYRLJUCMRT-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 239000004966 Carbon aerogel Substances 0.000 description 1
- 241000723346 Cinnamomum camphora Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 239000004386 Erythritol Substances 0.000 description 1
- UNXHWFMMPAWVPI-UHFFFAOYSA-N Erythritol Natural products OCC(O)C(O)CO UNXHWFMMPAWVPI-UHFFFAOYSA-N 0.000 description 1
- 229910002554 Fe(NO3)3·9H2O Inorganic materials 0.000 description 1
- 229910002566 KAl(SO4)2·12H2O Inorganic materials 0.000 description 1
- 229910013184 LiBO Inorganic materials 0.000 description 1
- 239000007832 Na2SO4 Substances 0.000 description 1
- TZCPCECDEPJTTK-UHFFFAOYSA-N O.O.O.O.O.O.O.O.B([O-])([O-])[O-].[Li+].[Li+].[Li+] Chemical compound O.O.O.O.O.O.O.O.B([O-])([O-])[O-].[Li+].[Li+].[Li+] TZCPCECDEPJTTK-UHFFFAOYSA-N 0.000 description 1
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- JNQZTWYHYCXETC-UHFFFAOYSA-M O.O.O.O.O.O.O.O.O.O.[Cl-].[NH4+].S(=O)(=O)([O-])O.[Na+] Chemical compound O.O.O.O.O.O.O.O.O.O.[Cl-].[NH4+].S(=O)(=O)([O-])O.[Na+] JNQZTWYHYCXETC-UHFFFAOYSA-M 0.000 description 1
- DCPHOBFUKBICSV-UHFFFAOYSA-L O.O.O.O.O.O.O.O.O.O.[Cl-].[Na+].S(=O)(=O)([O-])O.[Na+] Chemical compound O.O.O.O.O.O.O.O.O.O.[Cl-].[Na+].S(=O)(=O)([O-])O.[Na+] DCPHOBFUKBICSV-UHFFFAOYSA-L 0.000 description 1
- SXKDXXATOVHQTC-UHFFFAOYSA-K O.O.O.O.O.O.S(=O)(=O)([O-])[O-].[Al+3].[NH4+].S(=O)(=O)([O-])[O-] Chemical compound O.O.O.O.O.O.S(=O)(=O)([O-])[O-].[Al+3].[NH4+].S(=O)(=O)([O-])[O-] SXKDXXATOVHQTC-UHFFFAOYSA-K 0.000 description 1
- QIVRSYKSPQMIFN-UHFFFAOYSA-L O.O.O.O.O.O.[Cl-].[Ca+2].O.O.O.O.O.O.[Cl-] Chemical compound O.O.O.O.O.O.[Cl-].[Ca+2].O.O.O.O.O.O.[Cl-] QIVRSYKSPQMIFN-UHFFFAOYSA-L 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- XYQRXRFVKUPBQN-UHFFFAOYSA-L Sodium carbonate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]C([O-])=O XYQRXRFVKUPBQN-UHFFFAOYSA-L 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- 229960001413 acetanilide Drugs 0.000 description 1
- HTKFORQRBXIQHD-UHFFFAOYSA-N allylthiourea Chemical compound NC(=S)NCC=C HTKFORQRBXIQHD-UHFFFAOYSA-N 0.000 description 1
- 229960001748 allylthiourea Drugs 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- ZJOKNSFTHAWVKK-UHFFFAOYSA-K aluminum octadecanoate sulfate Chemical compound C(CCCCCCCCCCCCCCCCC)(=O)[O-].[Al+3].S(=O)(=O)([O-])[O-] ZJOKNSFTHAWVKK-UHFFFAOYSA-K 0.000 description 1
- ZEMWIYASLJTEHQ-UHFFFAOYSA-J aluminum;sodium;disulfate;dodecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.[Na+].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZEMWIYASLJTEHQ-UHFFFAOYSA-J 0.000 description 1
- 229960004050 aminobenzoic acid Drugs 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- DMLAVOWQYNRWNQ-UHFFFAOYSA-N azobenzene Chemical compound C1=CC=CC=C1N=NC1=CC=CC=C1 DMLAVOWQYNRWNQ-UHFFFAOYSA-N 0.000 description 1
- ZUDYPQRUOYEARG-UHFFFAOYSA-L barium(2+);dihydroxide;octahydrate Chemical compound O.O.O.O.O.O.O.O.[OH-].[OH-].[Ba+2] ZUDYPQRUOYEARG-UHFFFAOYSA-L 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- ZVSKZLHKADLHSD-UHFFFAOYSA-N benzanilide Chemical compound C=1C=CC=CC=1C(=O)NC1=CC=CC=C1 ZVSKZLHKADLHSD-UHFFFAOYSA-N 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 229960004365 benzoic acid Drugs 0.000 description 1
- QOYRNHQSZSCVOW-UHFFFAOYSA-N cadmium nitrate tetrahydrate Chemical compound O.O.O.O.[Cd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O QOYRNHQSZSCVOW-UHFFFAOYSA-N 0.000 description 1
- OCDWFIWQOCOXKZ-UHFFFAOYSA-N cadmium(2+) dinitrate hydrate Chemical compound O.[Cd++].[O-][N+]([O-])=O.[O-][N+]([O-])=O OCDWFIWQOCOXKZ-UHFFFAOYSA-N 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- QHFQAJHNDKBRBO-UHFFFAOYSA-L calcium chloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].[Cl-].[Ca+2] QHFQAJHNDKBRBO-UHFFFAOYSA-L 0.000 description 1
- QSHXZNJVLUEIHK-UHFFFAOYSA-L calcium;dibromide;hexahydrate Chemical compound O.O.O.O.O.O.[Ca+2].[Br-].[Br-] QSHXZNJVLUEIHK-UHFFFAOYSA-L 0.000 description 1
- ZNLVAQJGGDVQAU-UHFFFAOYSA-L calcium;dichloride;tetrahydrate Chemical compound O.O.O.O.[Cl-].[Cl-].[Ca+2] ZNLVAQJGGDVQAU-UHFFFAOYSA-L 0.000 description 1
- GVHRTAKEBFEMFD-UHFFFAOYSA-L calcium;diiodide;hexahydrate Chemical compound O.O.O.O.O.O.[Ca+2].[I-].[I-] GVHRTAKEBFEMFD-UHFFFAOYSA-L 0.000 description 1
- BQOJVQYLMGADDA-UHFFFAOYSA-N calcium;dinitrate;trihydrate Chemical compound O.O.O.[Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O BQOJVQYLMGADDA-UHFFFAOYSA-N 0.000 description 1
- 229960000846 camphor Drugs 0.000 description 1
- 229930008380 camphor Natural products 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- QGUAJWGNOXCYJF-UHFFFAOYSA-N cobalt dinitrate hexahydrate Chemical compound O.O.O.O.O.O.[Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O QGUAJWGNOXCYJF-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- OQRBCLLVAUWAKU-UHFFFAOYSA-L copper;sulfate;heptahydrate Chemical compound O.O.O.O.O.O.O.[Cu+2].[O-]S([O-])(=O)=O OQRBCLLVAUWAKU-UHFFFAOYSA-L 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- LDCRTTXIJACKKU-ONEGZZNKSA-N dimethyl fumarate Chemical compound COC(=O)\C=C\C(=O)OC LDCRTTXIJACKKU-ONEGZZNKSA-N 0.000 description 1
- 229960004419 dimethyl fumarate Drugs 0.000 description 1
- PYLIXCKOHOHGKQ-UHFFFAOYSA-L disodium;hydrogen phosphate;heptahydrate Chemical compound O.O.O.O.O.O.O.[Na+].[Na+].OP([O-])([O-])=O PYLIXCKOHOHGKQ-UHFFFAOYSA-L 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- UNXHWFMMPAWVPI-ZXZARUISSA-N erythritol Chemical compound OC[C@H](O)[C@H](O)CO UNXHWFMMPAWVPI-ZXZARUISSA-N 0.000 description 1
- 235000019414 erythritol Nutrition 0.000 description 1
- 229940009714 erythritol Drugs 0.000 description 1
- 229940044631 ferric chloride hexahydrate Drugs 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- NQXWGWZJXJUMQB-UHFFFAOYSA-K iron trichloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].Cl[Fe+]Cl NQXWGWZJXJUMQB-UHFFFAOYSA-K 0.000 description 1
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 description 1
- SUOTZEJYYPISIE-UHFFFAOYSA-N iron(2+);dinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O SUOTZEJYYPISIE-UHFFFAOYSA-N 0.000 description 1
- IJIVUROORPGPBF-UHFFFAOYSA-K iron(3+);trichloride;dihydrate Chemical compound O.O.[Cl-].[Cl-].[Cl-].[Fe+3] IJIVUROORPGPBF-UHFFFAOYSA-K 0.000 description 1
- SZQUEWJRBJDHSM-UHFFFAOYSA-N iron(3+);trinitrate;nonahydrate Chemical compound O.O.O.O.O.O.O.O.O.[Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O SZQUEWJRBJDHSM-UHFFFAOYSA-N 0.000 description 1
- GPIOUBQPSBZPFR-UHFFFAOYSA-M lithium;bromide;dihydrate Chemical compound [Li+].O.O.[Br-] GPIOUBQPSBZPFR-UHFFFAOYSA-M 0.000 description 1
- RTTBDBAJMWPBTI-UHFFFAOYSA-M lithium;chlorate;trihydrate Chemical compound [Li+].O.O.O.[O-]Cl(=O)=O RTTBDBAJMWPBTI-UHFFFAOYSA-M 0.000 description 1
- VXJIMUZIBHBWBV-UHFFFAOYSA-M lithium;chloride;hydrate Chemical compound [Li+].O.[Cl-] VXJIMUZIBHBWBV-UHFFFAOYSA-M 0.000 description 1
- OWWQZFTUDXFBRS-UHFFFAOYSA-N lithium;nitrate;dihydrate Chemical compound [Li+].O.O.[O-][N+]([O-])=O OWWQZFTUDXFBRS-UHFFFAOYSA-N 0.000 description 1
- IEMMJPTUSSWOND-UHFFFAOYSA-N lithium;nitrate;trihydrate Chemical compound [Li+].O.O.O.[O-][N+]([O-])=O IEMMJPTUSSWOND-UHFFFAOYSA-N 0.000 description 1
- 229940110859 magnesium chloride / sodium chloride Drugs 0.000 description 1
- 229940050906 magnesium chloride hexahydrate Drugs 0.000 description 1
- DHRRIBDTHFBPNG-UHFFFAOYSA-L magnesium dichloride hexahydrate Chemical compound O.O.O.O.O.O.[Mg+2].[Cl-].[Cl-] DHRRIBDTHFBPNG-UHFFFAOYSA-L 0.000 description 1
- SEGOJYCSWLUCKJ-UHFFFAOYSA-N magnesium dinitrate tetrahydrate Chemical compound O.O.O.O.[Mg++].[O-][N+]([O-])=O.[O-][N+]([O-])=O SEGOJYCSWLUCKJ-UHFFFAOYSA-N 0.000 description 1
- WRUGWIBCXHJTDG-UHFFFAOYSA-L magnesium sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Mg+2].[O-]S([O-])(=O)=O WRUGWIBCXHJTDG-UHFFFAOYSA-L 0.000 description 1
- 229940061634 magnesium sulfate heptahydrate Drugs 0.000 description 1
- XEEYVTMVFJEEEY-UHFFFAOYSA-L magnesium;dichloride;tetrahydrate Chemical compound O.O.O.O.[Mg+2].[Cl-].[Cl-] XEEYVTMVFJEEEY-UHFFFAOYSA-L 0.000 description 1
- CKYYFGUIKHUOKJ-UHFFFAOYSA-L magnesium;diiodide;octahydrate Chemical compound O.O.O.O.O.O.O.O.[Mg+2].[I-].[I-] CKYYFGUIKHUOKJ-UHFFFAOYSA-L 0.000 description 1
- YMKHJSXMVZVZNU-UHFFFAOYSA-N manganese(2+);dinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YMKHJSXMVZVZNU-UHFFFAOYSA-N 0.000 description 1
- ALIMWUQMDCBYFM-UHFFFAOYSA-N manganese(2+);dinitrate;tetrahydrate Chemical compound O.O.O.O.[Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ALIMWUQMDCBYFM-UHFFFAOYSA-N 0.000 description 1
- CNFDGXZLMLFIJV-UHFFFAOYSA-L manganese(II) chloride tetrahydrate Chemical compound O.O.O.O.[Cl-].[Cl-].[Mn+2] CNFDGXZLMLFIJV-UHFFFAOYSA-L 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- CZNGTXVOZOWWKM-UHFFFAOYSA-N methyl 4-bromobenzoate Chemical compound COC(=O)C1=CC=C(Br)C=C1 CZNGTXVOZOWWKM-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- JGOAZQAXRONCCI-SDNWHVSQSA-N n-[(e)-benzylideneamino]aniline Chemical compound C=1C=CC=CC=1N\N=C\C1=CC=CC=C1 JGOAZQAXRONCCI-SDNWHVSQSA-N 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- AOPCKOPZYFFEDA-UHFFFAOYSA-N nickel(2+);dinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O AOPCKOPZYFFEDA-UHFFFAOYSA-N 0.000 description 1
- AIBQNUOBCRIENU-UHFFFAOYSA-N nickel;dihydrate Chemical compound O.O.[Ni] AIBQNUOBCRIENU-UHFFFAOYSA-N 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229960003893 phenacetin Drugs 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- GNHOJBNSNUXZQA-UHFFFAOYSA-J potassium aluminium sulfate dodecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.[Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GNHOJBNSNUXZQA-UHFFFAOYSA-J 0.000 description 1
- VQKDLPNVPRIGCA-UHFFFAOYSA-M potassium;dihydrogen phosphate;heptahydrate Chemical compound O.O.O.O.O.O.O.[K+].OP(O)([O-])=O VQKDLPNVPRIGCA-UHFFFAOYSA-M 0.000 description 1
- SMEVHQSUBAMQRI-UHFFFAOYSA-M potassium;dihydrogen phosphate;trihydrate Chemical compound O.O.O.[K+].OP(O)([O-])=O SMEVHQSUBAMQRI-UHFFFAOYSA-M 0.000 description 1
- ZDFIYJXWUJGATP-UHFFFAOYSA-M potassium;fluoride;tetrahydrate Chemical compound O.O.O.O.[F-].[K+] ZDFIYJXWUJGATP-UHFFFAOYSA-M 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 229940087562 sodium acetate trihydrate Drugs 0.000 description 1
- 229940018038 sodium carbonate decahydrate Drugs 0.000 description 1
- PMWQVOWOPWZTEG-UHFFFAOYSA-N sodium nitrate hexahydrate Chemical compound O.O.O.O.O.O.[N+](=O)([O-])[O-].[Na+] PMWQVOWOPWZTEG-UHFFFAOYSA-N 0.000 description 1
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 description 1
- PODWXQQNRWNDGD-UHFFFAOYSA-L sodium thiosulfate pentahydrate Chemical compound O.O.O.O.O.[Na+].[Na+].[O-]S([S-])(=O)=O PODWXQQNRWNDGD-UHFFFAOYSA-L 0.000 description 1
- JBJWASZNUJCEKT-UHFFFAOYSA-M sodium;hydroxide;hydrate Chemical compound O.[OH-].[Na+] JBJWASZNUJCEKT-UHFFFAOYSA-M 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical class C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 1
- UJPWWRPNIRRCPJ-UHFFFAOYSA-L strontium;dihydroxide;octahydrate Chemical compound O.O.O.O.O.O.O.O.[OH-].[OH-].[Sr+2] UJPWWRPNIRRCPJ-UHFFFAOYSA-L 0.000 description 1
- 229940014800 succinic anhydride Drugs 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- FEONEKOZSGPOFN-UHFFFAOYSA-K tribromoiron Chemical compound Br[Fe](Br)Br FEONEKOZSGPOFN-UHFFFAOYSA-K 0.000 description 1
- CBNBGETWKBUTEL-UHFFFAOYSA-K tripotassium;phosphate;heptahydrate Chemical compound O.O.O.O.O.O.O.[K+].[K+].[K+].[O-]P([O-])([O-])=O CBNBGETWKBUTEL-UHFFFAOYSA-K 0.000 description 1
- ASTWEMOBIXQPPV-UHFFFAOYSA-K trisodium;phosphate;dodecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[Na+].[O-]P([O-])([O-])=O ASTWEMOBIXQPPV-UHFFFAOYSA-K 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- PTSZYEWEQITNAC-UHFFFAOYSA-N zinc dinitrate dihydrate Chemical compound O.O.[Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O PTSZYEWEQITNAC-UHFFFAOYSA-N 0.000 description 1
- SFYBRCJPMDQKHA-UHFFFAOYSA-N zinc;dinitrate;tetrahydrate Chemical compound O.O.O.O.[Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O SFYBRCJPMDQKHA-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H01M10/61—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
- H01M10/65—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
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
本发明涉及电池技术领域，尤其涉及一种阻热保护结构、电池模组以及用电设备。所述阻热保护结构包括吸热层；所述吸热层包括中间区域和围绕所述中间区域设置的边缘区域，所述中间区域的吸热性能大于所述边缘区域的吸热性能，吸热层的吸热性能非均匀分布的，中间区域的吸热性能更强，使得中间区域能够吸收更多的热量；在中间区域受热较高时，可以更好的发挥其吸热功效，且避免该中间区域被快速消耗掉，提高抑制热蔓延的效果，确保与阻热保护结构连接的电池能够持续处于均匀和较低的温度状态，有效提高设有电池的电池模组的稳定性和安全性。
The present invention relates to the field of battery technology, and in particular to a heat-resistant protective structure, a battery module, and an electrical device. The heat-resistant protective structure includes a heat-absorbing layer; the heat-absorbing layer includes a middle area and an edge area arranged around the middle area, the heat-absorbing performance of the middle area is greater than that of the edge area, the heat-absorbing performance of the heat-absorbing layer is unevenly distributed, and the heat-absorbing performance of the middle area is stronger, so that the middle area can absorb more heat; when the middle area is heated, its heat-absorbing effect can be better exerted, and the middle area can be prevented from being quickly consumed, thereby improving the effect of suppressing heat spread, ensuring that the battery connected to the heat-resistant protective structure can continue to be in a uniform and low temperature state, and effectively improving the stability and safety of the battery module provided with the battery.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a heat-resistant protection structure, a battery module and electric equipment.
Background
The battery module comprises a heat-resistant protection piece and batteries, and the heat-resistant protection piece is arranged between two adjacent batteries. When the battery module is out of control, the heat-resistant protection piece is used for isolating heat transfer between batteries so as to ensure the stability and the safety of the battery module. However, the current heat blocking protection member has poor effect of ensuring the stability and safety of the battery module.
Disclosure of Invention
The embodiment of the invention provides a heat-resistant protection structure, a battery module and electric equipment, and aims to solve the technical problem that a heat-resistant protection piece in the prior art is poor in effect of guaranteeing stability and safety of the battery module.
In a first aspect, an embodiment of the present invention provides a thermal protection structure, where the thermal protection structure includes a heat absorption layer, where the heat absorption layer includes a middle area and an edge area disposed around the middle area, and the heat absorption performance of the middle area is greater than that of the edge area.
Optionally, the heat-resistant protection structure further comprises a heat insulation layer, and the heat absorption layer is embedded in the heat insulation layer.
Optionally, the heat-blocking protection structure includes a plurality of heat absorbing members, and a plurality of heat absorbing members are respectively embedded in the heat insulating layer to form the heat absorbing layer, the heat absorbing member located in the middle area is a first heat absorbing member, the heat absorbing member located in the edge area is a second heat absorbing member, and the heat absorbing performance of the first heat absorbing member is greater than that of the second heat absorbing member.
Optionally, the width of the first heat absorbing member is greater than the width of the second heat absorbing member from the middle region to the edge region.
Optionally, in the case that the first heat absorbing member and the second heat absorbing member are made of the same material, the thickness of the first heat absorbing member is greater than the thickness of the second heat absorbing member along the thickness direction of the heat insulating layer of the heat-resistant protection structure.
Optionally, the heat absorbing members are in a ring structure, and the plurality of heat absorbing members are sleeved in sequence from the middle area to the edge area and are arranged at intervals.
Optionally, the radial widths of the plurality of heat absorbing members decrease sequentially from the middle region to the edge region.
Optionally, the heat absorbing member includes at least two sub heat absorbing members, and at least two sub heat absorbing members are sequentially arranged at intervals and enclose to form the annular structure.
Optionally, the annular structure is at least one of a circular ring shape, an elliptical ring shape, a diamond annular structure and a rectangular annular structure.
Optionally, the activation energy of the material of the first heat absorbing member is lower than the activation energy of the material of the second heat absorbing member, and/or the absolute value of the phase change enthalpy of the material of the first heat absorbing member is higher than the absolute value of the phase change enthalpy of the material of the second heat absorbing member.
Optionally, the heat absorbing layer is further provided with a transition area, the transition area is arranged between the middle area and the edge area, and the heat absorbing performance of the middle area, the transition area and the edge area is gradually decreased.
Optionally, one side of the heat-resistant protection structure along the thickness direction is a heat-absorbing surface, the heat-absorbing surface is provided with two opposite long sides and two short sides, the length of the long side is b, the length of the short side is a, and under the condition that 1<b/a <4, the center of the heat-absorbing surface is taken as a round point, so that the heat-resistant protection structure is a heat-absorbing surfaceThe heat absorption surface is provided with a heat absorption surface, a middle area is formed on the heat absorption surface and corresponds to the round area, a short half axis is 0.33a, a long half axis is (3 Xb/a-1)/6 Xa, a first elliptic area is formed on the heat absorption surface, the middle point of a connecting line of two focuses of the first elliptic area coincides with the center of the heat absorption surface, a transition area corresponds to an area of the first elliptic area except the round area, and the areas of the heat absorption layer except the middle area and the transition area are edge areas.
Optionally, one surface of the heat-resistant protection structure along the thickness direction is a heat-absorbing surface, the heat-absorbing surface is provided with two long sides and two short sides which are opposite, the length of the long sides is b, the length of the short sides is a, under the condition that b/a is less than or equal to 4 and less than 50, a second elliptical area is formed on the heat-absorbing surface by using a short half shaft of 0.5a and a long half shaft of 0.2b, the middle point of a connecting line of two focuses of the second elliptical area coincides with the center of the heat-absorbing surface, the middle area corresponds to the second elliptical area, a third elliptical area is formed on the heat-absorbing surface by using a short half shaft of 0.75a and a long half shaft of 0.25b, the middle point of a connecting line of two focuses of the third elliptical area coincides with the center of the heat-absorbing surface, the transition area corresponds to the third elliptical area except the second elliptical area, and the middle area and the area except the transition area are the edge areas in the heat-absorbing layer.
Optionally, the heat absorption layer is provided with one layer, and/or the heat absorption layer is provided with at least two layers, and the at least two layers of heat absorption layers are stacked at intervals along the thickness direction of the heat insulation layer of the heat-resistant protection structure.
Optionally, the thickness of the heat absorbing layer is 0.01mm-1.5mm along the thickness direction of the heat insulating layer of the heat-resistant protection structure, and/or the thickness of the heat insulating layer is 1mm-10mm, and/or the heat insulating layer is made of aerogel materials.
Optionally, the heat absorbing member is made of at least one of a phase change material and a chemical heat storage material.
Optionally, the phase change material includes, but is not limited to, at least one of a hydrated salt phase change material, an organic phase change material, a molten salt phase change material, a metal phase change material, an alloy phase change material.
Optionally, the chemical heat storage material includes, but is not limited to, at least one of nickel hydroxide, magnesium dihydride, cobaltosic oxide, lead carbonate, ammonium bisulfate, calcium hydroxide, strontium hydroxide, calcium carbonate, barium peroxide, barium hydroxide.
Optionally, a radiation blocking layer is arranged on the surface of at least one side of the heat insulation layer along the thickness direction of the heat insulation layer of the heat-resistant protection structure.
Optionally, the thickness of the radiation blocking layer is 0.1mm-1mm, and/or the radiation blocking layer is made of at least one of radiation blocking materials and reflective heat insulating materials.
In a second aspect, an embodiment of the present invention provides a battery module, where the battery module includes a plurality of batteries and a heat-resistant protection structure as described above, and the heat-resistant protection structure is disposed between two adjacent batteries.
In a third aspect, an embodiment of the present invention further provides an electric device, where the electric device includes an apparatus main body and a battery module as described above, and the apparatus main body is electrically connected with the battery module.
Aiming at the prior art, the invention has the following advantages:
According to the heat-resistant protection structure, the heat absorption layer comprises the middle area and the edge area surrounding the middle area, the heat absorption performance of the middle area is larger than that of the edge area, the heat absorption performance of the heat absorption layer is unevenly distributed, the heat absorption performance of the middle area is stronger, so that the middle area can absorb more heat, when the middle area is heated higher, the heat absorption effect of the middle area can be better exerted, the middle area is prevented from being rapidly consumed, the effect of inhibiting heat spreading is improved, the battery connected with the heat-resistant protection structure is ensured to be in a uniform and lower temperature state continuously, and the stability and the safety of the battery module with the battery are effectively improved.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present invention more readily apparent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly described below.
Fig. 1 is a schematic structural diagram of a front view of a heat-resistant protection structure according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a cross-sectional view of a heat-resistant protection structure along a thickness direction thereof according to an embodiment of the present invention;
FIG. 3 is a schematic view of a heat-resistant protective structure according to an embodiment of the present invention, wherein the heat-resistant protective structure is a partially cross-sectional view perpendicular to the thickness direction thereof;
FIG. 4 is a schematic diagram illustrating the distribution of the middle region, the transition region, and the edge region of the thermal protection structure according to the embodiment of the present invention;
FIG. 5 is a schematic diagram II of a cross-sectional view of a heat-resistant protection structure along a thickness direction thereof according to an embodiment of the present invention;
Fig. 6 is an experimental schematic diagram of a heat-resistant protection structure according to an embodiment of the present invention;
FIG. 7 is a center temperature comparison plot of a simulation study;
FIG. 8 is a graph of average temperature versus simulation study;
FIG. 9 is a graph showing the temperature distribution of the non-heated surface of the heat-resistant protection structure of the simulation study;
fig. 10 is a graph of center temperature versus average temperature for a simulation study.
10-Heat absorbing piece, 12-heat absorbing layer, 13-middle area, 14-transition area, 15-heat insulating layer, 16-radiation blocking layer and 18-edge area;
an a-heat source, a b-heat-resistant protection structure, a c-heat insulation layer and a d-heat absorption layer.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The embodiment of the application discloses a heat-resistant protection structure, which is a safety component, and is arranged between two adjacent batteries in a battery module and used for isolating heat transfer and heat absorption between the batteries, delaying the heat spreading of the batteries and avoiding the heat spreading of other batteries so as to improve the stability and the safety of the battery module.
Referring to fig. 1 to 4, the heat blocking protection structure includes a heat sink layer 12, and the heat sink layer 12 includes a middle region 13 and an edge region 18 disposed around the middle region 13, the heat absorbing performance of the middle region 13 being greater than that of the edge region 18.
The heat sink 12 serves to absorb and disperse heat, retard the heat spreading of the cell itself and prevent other cells from being heat spread, thereby reducing the risk of heat spreading.
In the embodiment of the application, the heat absorbing layer 12 comprises the middle area 13 and the edge area 18 surrounding the middle area 13, the heat absorbing performance of the middle area 13 is larger than that of the edge area 18, the heat absorbing performance of the heat absorbing layer 12 is unevenly distributed, the heat absorbing performance of the middle area 13 is stronger, so that the middle area 13 can absorb more heat, when the middle area 13 is heated higher, the heat absorbing effect of the middle area 13 can be better exerted, the middle area 13 is prevented from being quickly consumed, the effect of inhibiting heat spreading is improved, the battery connected with the heat-resistant protection structure is ensured to be in a uniform and lower temperature state continuously, and the stability and the safety of the battery module provided with the battery are effectively improved.
The inventor finds that obvious non-uniformity exists in temperature distribution on a radiating surface where the battery is in contact with the heat-resistant protection structure, the heat accumulation in the middle of the radiating surface is the greatest, the temperature is the highest, and the temperature is reduced as the heat is radiated faster closer to the edge of the radiating surface. The temperature distribution of the radiating surface of the battery is uneven, so that the temperature on the heat-resistant protection structure is also obviously uneven, the temperature of the area contacted with the middle part of the radiating surface is highest, and the temperature of the area contacted with the edge of the radiating surface is relatively low.
When the heat absorption layers in the heat-resistant protection structure are uniformly distributed, the consumption of the area of the heat absorption layer corresponding to the middle part of the radiating surface is larger than that of the area corresponding to the edge of the radiating surface, so that the heat absorption layer corresponding to the middle part of the radiating surface is rapidly consumed, and the heat absorption layer corresponding to the edge of the radiating surface is still sufficient. After the heat absorption layer in the middle of the corresponding radiating surface is rapidly consumed, the battery is caused to generate local thermal runaway when the temperature in the middle is too high, and then the battery is spread to the whole battery, so that the thermal spread is generated. If the thickness of the heat absorbing layer is increased, not only is the material at the edge of the corresponding heat dissipating surface wasted, but also the cost is increased and the application range of the material is reduced.
In the heat-resistant protection structure according to the embodiment of the application, the heat-absorbing layer 12 includes the middle region 13 and the edge region 18 surrounding the middle region 13, and the heat-absorbing performance of the middle region 13 is greater than that of the edge region 18, so that the temperature in the middle of the heat-dissipating surface can be reduced in a targeted manner to prevent heat from spreading, and the waste of materials at the edges of the corresponding heat-dissipating surface is avoided. In addition, the heat absorption layer 12 is embedded in the heat insulation layer 15, and forms an integral structural member with the heat insulation layer 15, so that the material of the heat absorption layer 12 is effectively prevented from being lost or deviating from the original position in the use process, and the use effect of the heat-resistant protection structure is effectively prevented. Therefore, the heat-resistant protection structure provided by the embodiment of the application has the advantages of good heat spreading inhibition effect and cost saving.
Optionally, the heat-resistant protection structure further comprises a heat insulation layer 15, the heat absorption layer 12 is embedded in the heat insulation layer 15, an integrated structural member is formed with the heat insulation layer 15, the heat insulation layer 15 can play a better sealing effect for the heat absorption material of the heat absorption layer 12, and loss of the heat absorption material in the heat absorption layer 12 in the installation process is avoided.
Optionally, the heat-blocking protection structure includes a plurality of heat absorbing members 10, where the plurality of heat absorbing members 10 are respectively embedded in the heat insulating layer 15 to form the heat absorbing layer 12, the heat absorbing member 10 located in the middle area 13 is a first heat absorbing member, the heat absorbing member 10 located in the edge area 18 is a second heat absorbing member, and the heat absorbing performance of the first heat absorbing member is greater than that of the second heat absorbing member.
In the embodiment of the application, the heat absorbing members 10 are respectively embedded in the heat insulating layer 15, so that the heat insulating layer 15 can have a better sealing effect on the heat absorbing members 10, the heat absorbing materials in the heat absorbing members 10 are prevented from losing in the installation process, the heat absorbing members 10 are prevented from deviating from the original positions to influence the using effect, the heat insulating layer 15 can have a good supporting effect and partitioning effect on the heat absorbing members 10, the adjacent heat absorbing members 10 are prevented from being influenced mutually, for example, the adjacent heat absorbing members 10 are prevented from being influenced mutually when being made of different materials, the adjacent heat absorbing members 10 are prevented from being interfered mutually or even reacted mutually, the diversity of the heat absorbing materials of the whole heat absorbing layer 12 is increased, the application range of the heat-resistant protection structure is enlarged, and meanwhile, the cost is reduced to a certain extent.
The heat absorbing member 10 located in the middle area 13 is a first heat absorbing member, the heat absorbing member 10 located in the edge area 18 is a second heat absorbing member, and the heat absorbing performance of the first heat absorbing member is larger than that of the second heat absorbing member, so that non-uniform heat absorption of the heat absorbing layer 12 is realized, the heat absorbing performance of the middle area 13 corresponding to more heat accumulation is large, the heat absorbing effect of the heat absorbing member is better exerted, and the effect of inhibiting heat spreading is improved.
Optionally, the width of the first heat absorbing member is greater than the width of the second heat absorbing member from the middle region 13 to the edge region 18. At this time, the first heat absorbing member has a larger heat absorbing area from the middle region 13 to the edge region 18 than the second heat absorbing member, so that the heat absorbing performance of the first heat absorbing member is larger than that of the second heat absorbing member.
Alternatively, in the case where the first heat absorbing member and the second heat absorbing member are made of the same material, the thickness of the first heat absorbing member is greater than the thickness of the second heat absorbing member in the thickness direction of the heat insulating layer 15. At this time, from the middle region 13 to the edge region 18, the volume of the first heat absorbing member is larger than that of the second heat absorbing member, so that the heat absorbing performance of the first heat absorbing member is larger than that of the second heat absorbing member.
Alternatively, referring to fig. 3, the heat absorbing member 10 has a ring-like structure, and a plurality of heat absorbing members 10 are sequentially sleeved and spaced from each other from the middle region 13 to the edge region 18.
In the above structure of the embodiment of the present application, two adjacent heat absorbing members 10 are arranged at intervals, and the two adjacent heat absorbing members 10 do not affect each other, i.e. the heat absorbing effect is not affected, so that the heat absorbing effect of the heat absorbing members 10 is ensured. And the heat absorbing members 10 are arranged in a way of outwards diffusing from the middle area 13 to the edge area 18, so that the heat absorbing performance of the middle area 13 can be larger than that of the edge area 18.
In the embodiment of the present application, the number and width distribution of the heat absorbing members 10 from the middle region 13 to the edge region 18 need to satisfy the heat absorbing distribution rule of the middle region 13 and the edge region 18, that is, satisfy the heat absorbing performance of the middle region 13 being greater than that of the edge region 18.
Alternatively, referring to fig. 3, the radial widths of the plurality of heat absorbing members 10 decrease in sequence from the middle region 13 toward the edge region 18. That is, the heat absorbing areas of the heat absorbing layers decrease in order from the middle region 13 to the edge region 18, so that the heat absorbing performance of the plurality of heat absorbing members 10 decreases in order.
Optionally, the heat absorbing member 10 includes at least two sub heat absorbing members, and the at least two sub heat absorbing members are sequentially spaced apart and enclosed to form a ring structure. In the above structure of the embodiment of the present application, the mutual influence between the adjacent two sub heat absorbing members can be avoided, thereby ensuring the heat absorbing effect of the heat absorbing member 10.
It will be appreciated that the specific shape of the annular structure may be set according to the requirement of use, and the embodiment of the present application is not limited thereto, for example, the annular structure is at least one of a circular ring shape, an elliptical ring shape, a diamond-shaped annular structure, and a rectangular annular structure.
Optionally, the activation energy of the material of the first heat absorbing member is lower than the activation energy of the material of the second heat absorbing member.
The activation energy of the material refers to the energy required to move the crystal atoms away from the equilibrium position to another new equilibrium or non-equilibrium position, the activation energy of the material of the first heat absorbing member is lower than the activation energy of the material of the second heat absorbing member, and the heat absorbing properties of the first heat absorbing member are greater than those of the second heat absorbing member.
Optionally, the absolute value of the phase change enthalpy of the material of the first heat absorbing member is higher than the absolute value of the phase change enthalpy of the material of the second heat absorbing member.
The phase change enthalpy of a material refers to the heat absorbed or released by a substance during a phase change under isothermal and isobaric conditions without performing non-volumetric work, and represents the thermal effect that occurs during the transition of a certain amount of the substance from one phase to another at a certain temperature. The absolute value of the phase change enthalpy value of the material of the first heat absorbing member is higher than that of the material of the second heat absorbing member, and the heat absorbing performance of the first heat absorbing member is higher than that of the second heat absorbing member.
In the embodiment of the application, when the activation energy of the material of the first heat absorbing member is lower than the activation energy of the material of the second heat absorbing member, and the absolute value of the phase change enthalpy value of the material of the first heat absorbing member is higher than that of the material of the second heat absorbing member, the heat absorbing performance of the first heat absorbing member is larger than that of the second heat absorbing member.
Optionally, referring to fig. 4, the heat absorbing layer 12 is further provided with a transition area 14, the transition area 14 is disposed between the middle area 13 and the edge area 18, and the heat absorbing performance of the middle area 13, the transition area 14 and the edge area 18 decreases in sequence, so that the heat absorbing layer 12 can absorb heat more effectively according to the heat distribution characteristics of the battery, and the heat spreading inhibiting effect is prevented from being influenced by the rapid consumption of the heat absorbing layer 12 with higher heat.
Alternatively, in one embodiment, referring to FIG. 4, one side of the heat insulating layer 15 along the thickness direction is a heat absorbing surface, the heat absorbing surface has two opposite long sides and two short sides, the length of the long side is b, the length of the short side is a, in the case 1<b/a <4, the center of the heat absorbing surface is a dot, so thatA circular area is formed on the heat absorbing surface, the middle area 13 corresponds to the circular area, a short half axis is 0.33a, a long half axis is (3 Xb/a-1)/6 Xa, a first elliptical area is formed on the heat absorbing surface, the middle point of a connecting line of two focuses of the first elliptical area coincides with the center of the heat absorbing surface, the transition area 14 corresponds to an area except the circular area of the first elliptical area, and the area except the middle area 13 and the transition area 14 in the heat absorbing layer 12 is an edge area 18.
Optionally, in another embodiment, one side of the heat insulating layer 15 along the thickness direction is a heat absorbing surface, the heat absorbing surface has two opposite long sides and two short sides, the length of the long side is b, the length of the short side is a, and in the case that 4.ltoreq.b/a <50, a second elliptical area is formed on the heat absorbing surface with a minor axis of 0.5a and a major axis of 0.2b, a midpoint of a connecting line of two focuses of the second elliptical area coincides with the center of the heat absorbing surface, the middle area 13 corresponds to the second elliptical area, a third elliptical area is formed on the heat absorbing surface with a minor axis of 0.75a and a major axis of 0.25b, a midpoint of a connecting line of two focuses of the third elliptical area coincides with the center of the heat absorbing surface, the transition area 14 corresponds to an area except the second elliptical area, and the area except the middle area 13 and the transition area 14 in the heat absorbing layer 12 is an edge area 18.
The inventor finds that in practical application, the temperature on the heat absorbing surface of the heat insulating layer 15 has obvious non-uniformity, the temperature in the middle of the heat absorbing surface is highest, and the temperature at the edge is lower. Through the above mode, the heat absorbing surface is partitioned, and the partition corresponds to the heat absorbing layer 12, so that reasonable distribution of the middle region 13, the transition region 14 and the edge region 18 on the heat absorbing layer 12 can be realized, and the heat absorbing layer 12 can absorb heat more effectively according to the heat distribution characteristics of the battery.
Alternatively, in one embodiment, referring to fig. 2, the heat absorbing layer 12 is provided as a layer, and the heat absorbing layer 12 is disposed in the middle of the heat absorbing layer 12.
Alternatively, in another embodiment, the heat absorbing layer 12 is provided in at least two layers, and at least two heat absorbing layers 12 are stacked at intervals along the thickness direction of the heat insulating layer 15. For example, referring to fig. 5, the heat absorbing layer 12 is formed of three layers, and the three heat absorbing layers 12 are stacked at intervals in the thickness direction of the heat insulating layer 15.
In the embodiment of the application, the heat-resistant protection structure can set the number of layers of the heat absorption layer 12 according to the use requirement, so that the heat-resistant protection structure is more flexible in design of heat absorption performance and more flexible in selection of materials in the heat absorption layer. In addition, when the heat insulation layer 15 is provided with at least two heat absorption layers 12, the heat absorption layers 12 are mutually isolated and not affected, and the heat absorption layers 12 for blocking heat can be designed according to temperature gradient in the tangential direction of heat transfer, so that the effects of absorbing heat and reducing temperature can be better achieved.
Alternatively, the thickness of the heat sink layer 12 is 0.01mm to 1.5mm in the thickness direction of the heat insulating layer 15. It will be appreciated that the thickness of the heat sink layer 12 is not particularly limited in this embodiment, for example, the thickness of the heat sink layer 12 is 0.01mm,0.02mm,0.05mm,0.08mm,0.1mm,0.2mm,0.3mm,0.4mm,0.5mm,0.6mm,0.7mm,0.755mm,0.8mm,0.9mm,1.0mm,1.1mm,1.2mm,1.3mm,1.4mm,1.5mm.
Alternatively, the thickness of the insulating layer 15 is 1mm to 10mm in the thickness direction of the insulating layer 15. It will be appreciated that the thickness of the heat sink layer 12 is not particularly limited in this embodiment, and, for example, the thickness of the insulating layer 15 was 1mm,1.5mm,2mm,2.5mm,3mm,3.5mm,4mm,4.5mm,5mm,5.5mm,6mm,6.5mm,7mm,7.5mm,8mm,8.5mm,9mm,9.5mm,10mm.
Optionally, the insulating layer 15 is made of aerogel material. Because the aerogel material has extremely low heat conductivity and excellent heat insulation performance, and the aerogel material also has low heat conductivity, low density, high strength and stability, and flame retardance, the aerogel material is suitable for being selected in a heat-resistant protection structure.
The aerogel material according to the embodiments of the present application is not particularly limited, and may be selected according to the use requirements, for example, the aerogel material includes at least one of an inorganic aerogel, an organic aerogel, a carbon aerogel, a natural aerogel, and a carbide aerogel.
Optionally, the material of the heat absorbing member 10 is not specifically limited in this embodiment of the present application, and may be selected according to the requirement of use, for example, the heat absorbing member 10 is made of at least one of a phase change material and a chemical heat storage material. Because different materials have different phase transition temperatures, the embodiment of the application can realize the uniformity under different temperature gradients on the same plane by utilizing the heat absorption characteristics of the materials, and can reduce the material consumption to a certain extent and the thickness and the cost of the heat absorption layer. And by arranging different types of heat absorbing materials and different masses of heat absorbing materials at positions of different temperature gradient ranges on the same plane, the heat absorbing characteristics and volumes of each material are utilized to realize the non-uniform distribution of heat absorbing performance.
Optionally, the phase change material comprises at least one of a hydrated salt phase change material, an organic phase change material, a molten salt phase change material, a metal phase change material, and an alloy phase change material.
Further, the phase change material includes an organic phase change material and an inorganic phase change material, and the heat absorbing member 10 may be made of at least one of an organic phase change material, an inorganic phase change material, and a chemical heat storage material.
Optionally, the organic phase change material is not particularly limited in the embodiment of the application, and for example, the organic phase change material comprises glycolic acid, p-bromophenol, azobenzene, acrylic acid, 2, 4-dinitrotoluene, phenylacetic acid, allylthiourea, D-3 camphor ball, benzylamine, tetramethyl benzene, acetamide, methyl p-bromobenzoate, 1-naphthol, glutaric acid, dichloro-p-xylene, methyl fumarate, benzene-o-diphenol, quinone, acetanilide, erythritol, succinic anhydride, benzoic acid, stilbene compounds, benzamide, phenacetin, p-amine toluene, benzaldehyde phenylhydrazone, salicylic acid, benzanilide, D-mannitol, hydroquinone, p-aminobenzoic acid and the like.
Optionally, the phase change material with a hydrated salt is not particularly limited in the embodiment of the present application, and the phase change material with a hydrated salt includes lithium chlorate trihydrate (LiClO 3·3H2 O), sodium sulfate ammonium chloride decahydrate (NH 4Cl·Na2SO4·10H2 O), potassium dihydrogen phosphate hexahydrate (K 2HPO4·6H2 O), and, Sodium sulfate sodium chloride decahydrate (NaCl Na 2SO4·10H2 O), potassium fluoride tetrahydrate (KF 4H 2 O), potassium dihydrogen phosphate tetrahydrate (K 2HPO4·4H2 O), ferric bromide hexahydrate (FeBr 3·6H2 O), Manganese nitrate hexahydrate (Mn (NO 3)2·6H2 O), lithium borate octahydrate (LiBO 2·8H2 O), calcium chloride hexahydrate (CaCl 2·6H2 O), calcium chloride dodecahydrate (CaCl 2·12H2 O), lithium nitrate trihydrate (LiNO 3·3H2 O), lithium nitrate dihydrate (LiNO 3·2H2 O), sodium sulfate decahydrate (Na 2SO4·10H2 O), sodium carbonate decahydrate (Na 2CO3·10H2 O), Potassium iron sulfate dodecahydrate (KFe (SO 4)2·12H2 O), calcium bromide hexahydrate (CaBr 2·6H2 O), lithium bromide dihydrate (LiBr 2H 2 O), disodium hydrogen phosphate dodecahydrate (Na 2HPO4·12H2 O), Zinc nitrate hexahydrate (Zn (NO 3)2·6H2 O), manganese nitrate tetrahydrate (Mn (NO 3)2·4H2 O), ferric chloride hexahydrate (FeCl 3·6H2 O), calcium chloride tetrahydrate (CaCl 2·4H2 O), Copper sulphate heptahydrate (CuSO 4·7H2 O), potassium fluoride dihydrate (KF.2H2H 2 O), magnesium iodide octahydrate (MgI 2·8H2 O), calcium iodide hexahydrate (CaI 2·6H2 O), Calcium nitrate tetrahydrate (Ca (NO 3)2·4H2 O), zinc nitrate tetrahydrate (Zn (NO 3)2·4H2 O), tripotassium phosphate heptahydrate (K 3PO4·7H2 O), monopotassium phosphate heptahydrate (K 2HPO4·7H2 O), Ferric nitrate nonahydrate (Fe (NO 3)3·9H2 O), magnesium nitrate tetrahydrate (Mg (NO 3)2·4H2 O), sodium silicate pentahydrate (Na 2SiO3·5H2 O), sodium silicate tetrahydrate (Na 2SiO3·4H2 O), Disodium hydrogen phosphate heptahydrate (Na 2HPO4·7H2 O), sodium thiosulfate pentahydrate (Na 2S2O3·5H2 O), potassium dihydrogen phosphate trihydrate (K 2HPO4·3H2 O), magnesium sulfate heptahydrate (MgSO 4·7H2 O), Calcium nitrate trihydrate (Ca (NO 3)2·3H2 O), sodium nitrate hexahydrate (Na (NO 3)2·6H2 O), zinc nitrate dihydrate (Zn (NO 3)2·2H2 O), ferric chloride dihydrate (FeCl 3·2H2 O), Cobalt nitrate hexahydrate (Co (NO 3)2·6H2 O), nickel nitrate hexahydrate (Ni (NO 3)2·6H2 O), manganese chloride tetrahydrate (MnCl 2·4H2 O), sodium acetate trihydrate (CH 3COONa·3H2 O), Lithium acetate dihydrate (LiC 2H3O2·2H2 O), magnesium chloride tetrahydrate (MgCl2.4H2O), sodium hydroxide hydrate (NaOH.H2O), cadmium nitrate tetrahydrate (Cd (NO 3)2·4H2 O), cadmium nitrate monohydrate (Cd (NO 3)2·H2 O), and the like, Ferrous nitrate hexahydrate (Fe (NO 3)2·6H2 O), sodium aluminum sulfate dodecahydrate (NaAl (SO 4)2·12H2 O), sodium aluminum sulfate decahydrate (NaAl (SO 4)2·10H2 O), ferrous sulfate heptahydrate (FeSO 4·7H2 O), Trisodium phosphate dodecahydrate (Na 3PO4·12H2 O), lithium acetate dihydrate (LiCH 3COO·2H2 O), disodium phosphate dodecahydrate (Na 2P2O7·10H2 O), aluminum nitrate nonahydrate (Al (NO 3)2·9H2 O), Barium hydroxide octahydrate (Ba (OH) 2·8H2 O), aluminum sulfate octadecanoate (Al 2(SO4)3·18H2 O), strontium hydroxide octahydrate (Sr (OH) 2·8H2 O), magnesium nitrate hexahydrate (Mg (NO 3)2·6H2 O), Potassium aluminum sulfate dodecahydrate (KAl (SO 4)2·12H2 O), ammonium aluminum sulfate hexahydrate ((NH 4)Al(SO4)·6H2 O), lithium chloride hydrate (licl·h 2 O), magnesium chloride hexahydrate (MgCl 2·6H2 O), and the like, and the above phase change materials are mixed in any ratio or a single phase change material.
Optionally, the embodiment of the present application does not specifically limit the molten salt phase-change material, and the molten salt phase-change material includes lithium nitrate/potassium chloride (LiNO 3/KCl), lithium nitrate/sodium nitrate (LiNO 3/NaNO3), potassium nitrate/sodium nitrate (KNO 3/NaNO3), Lithium nitrate/sodium chloride (LiNO 3/NaCl), sodium nitrate/potassium nitrate (NaNO 3/KNO3), lithium nitrate/diatomite (LiNO/diatomite), sodium nitrate/copper oxide (NaNO 3/CuO), Sodium nitrate/epoxy resin (NaNO 3/EP), potassium nitrate/diatomite (KNO 3/diatomite), lithium carbonate/sodium carbonate/potassium carbonate (Li 2CO3/Na2CO3/K2CO3), sodium chloride/calcium chloride/magnesium chloride (NaCl/CaCl 2/MgCl2), Magnesium chloride/sodium chloride (MgCl 2/NaCl), magnesium chloride/potassium chloride (MgCl 2/KCl), lithium carbonate/potassium carbonate (Li 2CO3/K2CO3), lithium carbonate/potassium carbonate (LiCO 3/K2CO3), Sodium carbonate/lithium carbonate (Na 2CO3/Li2CO3), sodium chloride/sodium carbonate (NaCl/Na 2CO3), sodium carbonate/sodium chloride (Na 2CO3/NaCl), sodium sulfate/diatomaceous earth (Na 2SO4/diatomaceous earth), sodium sulfate/silicon carbide ceramic foam (Na 2SO4/SiC ceramic foam), etc., and the above phase change materials are mixed in any ratio or a single phase change material.
Optionally, the chemical heat storage material according to the embodiment of the present application is not specifically limited, and the chemical heat storage material includes at least one of nickel hydroxide (Ni (OH) 2), magnesium hydroxide (Mg (OH) 2), magnesium dihydride (MgH 2), cobaltosic oxide (Co 3O4), lead carbonate (PbCO 3), ammonium bisulfate (NH 4HSO4), calcium hydroxide (Ca (OH) 2), strontium hydroxide (Sr (OH) 2), calcium carbonate (CaCO 3), barium peroxide (BaO 2), and barium hydroxide (Ba (OH) 2).
Optionally, a radiation blocking layer 16 is provided on at least one side surface of the insulating layer 15 in the thickness direction of the insulating layer 15. The radiation blocking layer 16 may be used to block the transfer of heat.
Referring to fig. 1, the insulating layer 15 is provided with radiation blocking layers 16 on opposite sides thereof in the thickness direction of the insulating layer 15.
Optionally, the radiation blocking layer 16 has a thickness of 0.1mm-1mm. It is to be understood that the thickness of the radiation blocking layer 16 is not particularly limited in this embodiment, and for example, the thickness of the radiation blocking layer 16 is 0.1mm,0.2mm,0.3mm,0.4mm,0.5mm,0.6mm,0.7mm,0.8mm,0.9mm,1mm.
Optionally, the radiation blocking layer 16 is at least one of a radiation blocking material, a reflective insulation material.
Wherein the radiation blocking material is used to reduce the heat transferred by the radiation. The radiation blocking material is not particularly limited in the embodiment of the application, and for example, the radiation blocking material comprises carbon black, silicon carbide (SiC), potassium hexatitanate whisker K 2Ti6O13, titanium dioxide (TiO 2), zirconium dioxide (ZrO 2), aluminum oxide (Al 2O3), coal ash, anti-spinel metal oxide high-radiation heat insulation material and the like.
Reflective insulation materials utilize highly reflective surfaces to reduce heat conduction and convection materials. The reflective insulation material according to the embodiment of the application is not particularly limited, and for example, the reflective insulation material includes titanium dioxide (TiO 2), glass beads, aluminum powder, aluminum oxide (Al 2O3), and the like, and a reflective coating layer made of a mixture of the above reflective materials and a resin, a copper (Cu) layer, a silver (Ag) layer, an aluminum (Al) layer, and the like.
In one embodiment, the heat-resistant protection structure is shown with reference to fig. 1 to 3, and includes a heat insulation layer 15, two radiation-blocking layers 16, and a heat absorption layer 12 formed by a plurality of heat absorption members 10. Along the thickness direction of the heat insulating layer 15, the opposite side surfaces of the heat insulating layer 15 are respectively connected with the radiation blocking layer 16 by adopting bonding and the like. The heat absorbing members 10 are respectively embedded in the heat insulating layer 15. The heat absorbing layer 12 is formed by selecting a corresponding material type (materials including phase change material and chemical heat storage material) and a distribution position of the heat absorbing member 10 according to the temperature of the heat source and the environment and a safe temperature to be maintained.
The materials and amounts of the phase change material and the chemical heat storage material in the heat absorption layer 12 are, for example, that the temperature in the middle area 13 is higher, more heat needs to be taken away more rapidly, and the middle area 13 is made of a material with lower activation energy and higher absolute value of phase change enthalpy value, or the content of the material is increased, or a plurality of materials are used for heat absorption in a matching way. The transition region 14 requires a relatively longer time for inducing thermal runaway, so that a phase change material having a high activation energy and a moderate enthalpy value may be used. The temperature of the edge region 18 can be reduced by natural heat dissipation, so that a small amount of material is used in the edge region 18 to save costs.
When the heat-resistant protection structure is used, the heat-resistant protection structure is installed between the batteries of the battery module. When one or more batteries in the battery module are out of control, the higher heat radiation heat is firstly blocked by the blocking radiation layer 16 of the heat-blocking protection structure, the heat entering the heat-blocking protection structure through heat conduction is blocked by one side of the heat insulation layer 15, and finally the heat is taken away by the heat absorbing material of the heat absorbing layer 12, so that the heat spreading of the batteries is delayed, and the temperature of the battery at the spread side is reduced.
The inventor researches the difference between the heat-blocking protection structure b and the heat-absorbing layer uniform arrangement structure (the heat-absorbing layer uniform arrangement structure comprises a heat-absorbing layer d and two heat-insulating layers c which are arranged in a laminated manner, and the heat-absorbing layer d is arranged between the two heat-insulating layers c) through COMSOL simulation (multiple physical fields simulation). The heating surfaces of the heat-resistant protection structure b and the heat-absorbing layer uniformly-arranged structure are respectively connected with the heat source a, and the temperature of the non-heating surface of the heat-resistant protection structure b and the temperature of the non-heating surface of the heat-absorbing layer uniformly-arranged structure are studied.
Embodiment one:
Simulation conditions:
heating under a constant heat source, wherein the total thickness of the heat-resistant protection structure b is the same as the total thickness of the heat-absorbing layer uniform arrangement structure (for example, the total thickness is 2.0 mm), the mass of the adopted heat-absorbing materials is the same, the heating is carried out for the same time, and the average temperature and the center temperature of the non-heating surface are studied. Referring to fig. 7 and 8, compared with the conventional heat absorption layer uniform arrangement structure, the highest temperature of the center of the heat-blocking protection structure of the embodiment of the present application is 40 ℃ lower than the center temperature of the heat absorption layer uniform arrangement structure, and the average temperature of the entire plane of the non-heated surface is 18 ℃ lower.
The COMSOL simulation result shows that the total thickness of the heat-resistant protection structure b is the same as the total thickness of the structure with the heat-absorbing layer uniformly arranged, the mass of the adopted heat-absorbing material is the same, and the heat-resistant protection structure provided by the embodiment of the application has better heat-absorbing effect, so that the battery connected with the heat-resistant protection structure can be continuously in a uniform and lower temperature state.
Example two
Under the simulation condition that the thickness difference of the heat-resistant protection structure b and the heat-absorbing layer uniformly arranged structure is researched under the condition that the same heat-insulating effect is achieved. Referring to fig. 9 and 10, in the case of achieving substantially the same heat insulation effect, the heat blocking protection structure b is reduced by 0.8mm from the thickness of the heat sink uniformly disposed structure, and the weight of the heat sink material is reduced by 11g.
The COMSOL simulation result shows that the heat-resistant protection structure b and the heat-absorbing layer uniform arrangement structure are thinner under the condition that the same heat-insulating effect is achieved, and the weight of heat-absorbing materials is less, so that the material cost is saved.
The embodiment of the application also discloses a battery module which comprises a plurality of batteries and the heat-resistant protection structure, wherein the heat-resistant protection structure is arranged between two adjacent batteries.
The heat absorption performance of the heat absorption layer 12 in the heat-resistant protection structure of the battery module is unevenly distributed, and corresponds to the temperature distribution on the radiating surface of the battery, namely, the heat absorption performance of the middle area 13 of the higher heated part of the heat absorption layer 12 is large, and the heat absorption performance of the edge area 18 of the lower heated part is small, so that the heat absorption efficiency of the battery module is better exerted, the higher heated part is prevented from being rapidly consumed, the effect of inhibiting heat spreading is improved, and the battery connected with the heat-resistant protection structure is ensured to be continuously at uniform and lower temperature.
The embodiment of the application also discloses electric equipment, which comprises an equipment main body and the battery module, wherein the equipment main body is electrically connected with the battery module.
The electric equipment can be a vehicle, an energy storage device, such as a mobile energy storage power supply, and a mobile terminal, such as mobile phones, cameras and other electronic equipment. Of course, the above is merely an example of a powered device and is not intended as a limitation of the present application. In practical application, suitable electric equipment can be selected according to the needs.
It should be noted that, in the embodiment of the present application, the battery module included in the electric device has the same structure as the battery module described in the above embodiment, and the beneficial effects thereof are similar, and are not repeated here.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (22)
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| CN114006105A (en) * | 2020-07-28 | 2022-02-01 | Sk新技术株式会社 | Battery pack comprising heat-absorbing fire barrier |
| CN115004455A (en) * | 2020-01-31 | 2022-09-02 | Sk新能源株式会社 | Battery module |
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| JP7092536B2 (en) * | 2018-03-29 | 2022-06-28 | イビデン株式会社 | Endothermic sheet for assembled battery and assembled battery |
| CN114340887A (en) * | 2019-07-19 | 2022-04-12 | 多产研究有限责任公司 | Heat shielding device, material and method therefor |
| CN112687979B (en) * | 2020-12-25 | 2022-03-29 | 中创新航科技股份有限公司 | Battery module and battery pack |
| CN117691260A (en) * | 2023-12-11 | 2024-03-12 | 欣旺达动力科技股份有限公司 | Heat insulation pad and power battery pack |
| CN118231846A (en) * | 2023-12-29 | 2024-06-21 | 比亚迪股份有限公司 | Heat absorption heat insulation structure, battery pack and power consumption system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115004455A (en) * | 2020-01-31 | 2022-09-02 | Sk新能源株式会社 | Battery module |
| CN114006105A (en) * | 2020-07-28 | 2022-02-01 | Sk新技术株式会社 | Battery pack comprising heat-absorbing fire barrier |
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