CN116445760A - Aluminum alloy ceramic composite material, preparation method thereof, battery pack and power utilization device - Google Patents
Aluminum alloy ceramic composite material, preparation method thereof, battery pack and power utilization device Download PDFInfo
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- CN116445760A CN116445760A CN202310729486.1A CN202310729486A CN116445760A CN 116445760 A CN116445760 A CN 116445760A CN 202310729486 A CN202310729486 A CN 202310729486A CN 116445760 A CN116445760 A CN 116445760A
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- Prior art keywords
- aluminum alloy
- ceramic composite
- composite material
- powder
- ceramic
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 131
- 239000002131 composite material Substances 0.000 title claims abstract description 79
- 239000000919 ceramic Substances 0.000 title claims abstract description 69
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 46
- 239000000956 alloy Substances 0.000 claims abstract description 40
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims description 39
- 239000011230 binding agent Substances 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 27
- 239000002245 particle Substances 0.000 claims description 27
- 238000000498 ball milling Methods 0.000 claims description 13
- 238000005245 sintering Methods 0.000 claims description 11
- 238000005238 degreasing Methods 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 4
- -1 polypropylene Polymers 0.000 description 20
- 229910052782 aluminium Inorganic materials 0.000 description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 18
- 239000010410 layer Substances 0.000 description 18
- 239000003792 electrolyte Substances 0.000 description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 12
- 239000007774 positive electrode material Substances 0.000 description 12
- 229910052744 lithium Inorganic materials 0.000 description 8
- 239000007773 negative electrode material Substances 0.000 description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- 239000000654 additive Substances 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 7
- 229910000572 Lithium Nickel Cobalt Manganese Oxide (NCM) Inorganic materials 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 6
- 239000006258 conductive agent Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229920000573 polyethylene Polymers 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 239000001993 wax Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000006183 anode active material Substances 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000011888 foil Substances 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 5
- 239000011777 magnesium Substances 0.000 description 5
- 229920001707 polybutylene terephthalate Polymers 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000011267 electrode slurry Substances 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 235000021317 phosphate Nutrition 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- ILXAVRFGLBYNEJ-UHFFFAOYSA-K lithium;manganese(2+);phosphate Chemical compound [Li+].[Mn+2].[O-]P([O-])([O-])=O ILXAVRFGLBYNEJ-UHFFFAOYSA-K 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- HHVIBTZHLRERCL-UHFFFAOYSA-N sulfonyldimethane Chemical compound CS(C)(=O)=O HHVIBTZHLRERCL-UHFFFAOYSA-N 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 2
- 229910001316 Ag alloy Inorganic materials 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 229920002845 Poly(methacrylic acid) Polymers 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 239000006230 acetylene black Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000002134 carbon nanofiber Substances 0.000 description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 description 2
- 239000002041 carbon nanotube Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 2
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 239000003273 ketjen black Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 2
- 229910021437 lithium-transition metal oxide Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- TZIHFWKZFHZASV-UHFFFAOYSA-N methyl formate Chemical compound COC=O TZIHFWKZFHZASV-UHFFFAOYSA-N 0.000 description 2
- 239000010450 olivine Substances 0.000 description 2
- 229910052609 olivine Inorganic materials 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000002210 silicon-based material Substances 0.000 description 2
- 239000000661 sodium alginate Substances 0.000 description 2
- 235000010413 sodium alginate Nutrition 0.000 description 2
- 229940005550 sodium alginate Drugs 0.000 description 2
- 229920001897 terpolymer Polymers 0.000 description 2
- 239000011366 tin-based material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 1
- HNAGHMKIPMKKBB-UHFFFAOYSA-N 1-benzylpyrrolidine-3-carboxamide Chemical compound C1C(C(=O)N)CCN1CC1=CC=CC=C1 HNAGHMKIPMKKBB-UHFFFAOYSA-N 0.000 description 1
- MBDUIEKYVPVZJH-UHFFFAOYSA-N 1-ethylsulfonylethane Chemical compound CCS(=O)(=O)CC MBDUIEKYVPVZJH-UHFFFAOYSA-N 0.000 description 1
- UHOPWFKONJYLCF-UHFFFAOYSA-N 2-(2-sulfanylethyl)isoindole-1,3-dione Chemical compound C1=CC=C2C(=O)N(CCS)C(=O)C2=C1 UHOPWFKONJYLCF-UHFFFAOYSA-N 0.000 description 1
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 1
- SBLRHMKNNHXPHG-UHFFFAOYSA-N 4-fluoro-1,3-dioxolan-2-one Chemical compound FC1COC(=O)O1 SBLRHMKNNHXPHG-UHFFFAOYSA-N 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 241000070928 Calligonum comosum Species 0.000 description 1
- 229920001661 Chitosan Polymers 0.000 description 1
- 241000289517 Colletotrichum lini Species 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- JGFBQFKZKSSODQ-UHFFFAOYSA-N Isothiocyanatocyclopropane Chemical compound S=C=NC1CC1 JGFBQFKZKSSODQ-UHFFFAOYSA-N 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- 229910014689 LiMnO Inorganic materials 0.000 description 1
- 229910012619 LiNi0.5Co0.25Mn0.25O2 Inorganic materials 0.000 description 1
- 229910002991 LiNi0.5Co0.2Mn0.3O2 Inorganic materials 0.000 description 1
- 229910011328 LiNi0.6Co0.2Mn0.2O2 Inorganic materials 0.000 description 1
- 229910015717 LiNi0.85Co0.15Al0.05O2 Inorganic materials 0.000 description 1
- 229910015872 LiNi0.8Co0.1Mn0.1O2 Inorganic materials 0.000 description 1
- 229910013292 LiNiO Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- RJUFJBKOKNCXHH-UHFFFAOYSA-N Methyl propionate Chemical compound CCC(=O)OC RJUFJBKOKNCXHH-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920006172 Tetrafluoroethylene propylene Polymers 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical class [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 1
- VIEVWNYBKMKQIH-UHFFFAOYSA-N [Co]=O.[Mn].[Li] Chemical compound [Co]=O.[Mn].[Li] VIEVWNYBKMKQIH-UHFFFAOYSA-N 0.000 description 1
- QTHKJEYUQSLYTH-UHFFFAOYSA-N [Co]=O.[Ni].[Li] Chemical compound [Co]=O.[Ni].[Li] QTHKJEYUQSLYTH-UHFFFAOYSA-N 0.000 description 1
- UMVBXBACMIOFDO-UHFFFAOYSA-N [N].[Si] Chemical class [N].[Si] UMVBXBACMIOFDO-UHFFFAOYSA-N 0.000 description 1
- FBDMTTNVIIVBKI-UHFFFAOYSA-N [O-2].[Mn+2].[Co+2].[Ni+2].[Li+] Chemical compound [O-2].[Mn+2].[Co+2].[Ni+2].[Li+] FBDMTTNVIIVBKI-UHFFFAOYSA-N 0.000 description 1
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical class [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- NDPGDHBNXZOBJS-UHFFFAOYSA-N aluminum lithium cobalt(2+) nickel(2+) oxygen(2-) Chemical compound [Li+].[O--].[O--].[O--].[O--].[Al+3].[Co++].[Ni++] NDPGDHBNXZOBJS-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- OBNCKNCVKJNDBV-UHFFFAOYSA-N butanoic acid ethyl ester Natural products CCCC(=O)OCC OBNCKNCVKJNDBV-UHFFFAOYSA-N 0.000 description 1
- PWLNAUNEAKQYLH-UHFFFAOYSA-N butyric acid octyl ester Natural products CCCCCCCCOC(=O)CCC PWLNAUNEAKQYLH-UHFFFAOYSA-N 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- VUPKGFBOKBGHFZ-UHFFFAOYSA-N dipropyl carbonate Chemical compound CCCOC(=O)OCCC VUPKGFBOKBGHFZ-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229940093499 ethyl acetate Drugs 0.000 description 1
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 1
- QKBJDEGZZJWPJA-UHFFFAOYSA-N ethyl propyl carbonate Chemical compound [CH2]COC(=O)OCCC QKBJDEGZZJWPJA-UHFFFAOYSA-N 0.000 description 1
- ZYMKZMDQUPCXRP-UHFFFAOYSA-N fluoro prop-2-enoate Chemical compound FOC(=O)C=C ZYMKZMDQUPCXRP-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000007561 laser diffraction method Methods 0.000 description 1
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 description 1
- 229910002102 lithium manganese oxide Inorganic materials 0.000 description 1
- FRMOHNDAXZZWQI-UHFFFAOYSA-N lithium manganese(2+) nickel(2+) oxygen(2-) Chemical compound [O-2].[Mn+2].[Ni+2].[Li+] FRMOHNDAXZZWQI-UHFFFAOYSA-N 0.000 description 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 1
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 description 1
- IGILRSKEFZLPKG-UHFFFAOYSA-M lithium;difluorophosphinate Chemical compound [Li+].[O-]P(F)(F)=O IGILRSKEFZLPKG-UHFFFAOYSA-M 0.000 description 1
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 description 1
- VLXXBCXTUVRROQ-UHFFFAOYSA-N lithium;oxido-oxo-(oxomanganiooxy)manganese Chemical compound [Li+].[O-][Mn](=O)O[Mn]=O VLXXBCXTUVRROQ-UHFFFAOYSA-N 0.000 description 1
- URIIGZKXFBNRAU-UHFFFAOYSA-N lithium;oxonickel Chemical compound [Li].[Ni]=O URIIGZKXFBNRAU-UHFFFAOYSA-N 0.000 description 1
- MCVFFRWZNYZUIJ-UHFFFAOYSA-M lithium;trifluoromethanesulfonate Chemical compound [Li+].[O-]S(=O)(=O)C(F)(F)F MCVFFRWZNYZUIJ-UHFFFAOYSA-M 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- KKQAVHGECIBFRQ-UHFFFAOYSA-N methyl propyl carbonate Chemical compound CCCOC(=O)OC KKQAVHGECIBFRQ-UHFFFAOYSA-N 0.000 description 1
- 239000004200 microcrystalline wax Substances 0.000 description 1
- 235000019808 microcrystalline wax Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 1
- UUIQMZJEGPQKFD-UHFFFAOYSA-N n-butyric acid methyl ester Natural products CCCC(=O)OC UUIQMZJEGPQKFD-UHFFFAOYSA-N 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920002961 polybutylene succinate Polymers 0.000 description 1
- 239000004631 polybutylene succinate Substances 0.000 description 1
- 229940090181 propyl acetate Drugs 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 239000002153 silicon-carbon composite material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 229910021384 soft carbon Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/103—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing an organic binding agent comprising a mixture of, or obtained by reaction of, two or more components other than a solvent or a lubricating agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
- B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0005—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with at least one oxide and at least one of carbides, nitrides, borides or silicides as the main non-metallic constituents
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
- C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
- C22C32/0036—Matrix based on Al, Mg, Be or alloys thereof
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
- C22C32/0057—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides based on B4C
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
- C22C32/0063—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides based on SiC
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0073—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only borides
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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
- 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
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/222—Inorganic material
- H01M50/224—Metals
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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- 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
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- Chemical & Material Sciences (AREA)
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- Aviation & Aerospace Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The application relates to an aluminum alloy ceramic composite material, a preparation method thereof, a battery pack and an electric device. The aluminum alloy ceramic composite material comprises a mixture of ceramic materials and aluminum alloy materials, wherein the ceramic materials account for 10-40% by volume of the aluminum alloy ceramic composite material. The aluminum alloy ceramic composite material has better strength, elastic modulus and elongation rate, and can meet the performance requirement of the battery on the supporting block.
Description
Technical Field
The application relates to the field of batteries, in particular to an aluminum alloy ceramic composite material, a preparation method thereof, a battery pack and an electric device.
Background
In recent years, batteries are widely used in energy storage power supply systems such as hydraulic power, thermal power, wind power and solar power stations, and in various fields such as electric tools, electric bicycles, electric motorcycles, electric automobiles, military equipment, aerospace and the like.
The battery is generally assembled in an integrated manner in the form of a battery pack, the battery pack comprises a battery module and a battery box for accommodating the battery module, and because the battery module can be subjected to expansion denaturation to a certain extent in the circulation process, an aluminum extrusion beam is generally arranged at the periphery of the battery module (a certain distance is reserved between the battery module and a shell) to limit the battery module, and a supporting block is arranged between the aluminum extrusion beam and the shell, so that the deformation of the aluminum extrusion beam is better limited, and further the deformation of a battery core is limited, the supporting block is required to have higher strength and elastic modulus, and meanwhile, the higher extensibility is required to meet the engineering use, however, the current supporting block material cannot meet the requirement.
Disclosure of Invention
The application provides an aluminum alloy ceramic composite material which has better strength, elastic modulus and elongation and can meet the performance requirement of a battery on a supporting block.
In a first aspect of the present application, an aluminum alloy ceramic composite material is provided, wherein the composition of the aluminum alloy ceramic composite material includes a mixture of a ceramic material and an aluminum alloy material, and the volume percentage of the ceramic material is 10% -40% based on the volume percentage of the aluminum alloy ceramic composite material.
In one embodiment, the ceramic material is 20% -40% by volume of the aluminum alloy ceramic composite material.
In one embodiment, the ceramic material comprises SiC, al 2 O 3 、B 4 C. TiC and TiB 2 One or more of the following.
In one embodiment, the aluminum alloy material includes one or more of a 2-series aluminum alloy, a 4-series aluminum alloy, a 5-series aluminum alloy, a 6-series aluminum alloy, and a 7-series aluminum alloy.
In one embodiment, the aluminum alloy ceramic composite has at least one of the following characteristics:
(1) The elastic modulus is 80 GPa-120 GPa;
(2) The tensile strength is 320-560 MPa;
(3) The yield strength is 210-480 MPa;
(4) The elongation rate is 6% -20%.
In a second aspect of the present application, a method for preparing an aluminum alloy ceramic composite material is provided, including the steps of:
mixing powder of ceramic material and powder of aluminum alloy material to prepare powder;
mixing the powder with a binder, molding, and preparing a green body;
degreasing and sintering the green body to prepare the aluminum alloy ceramic composite material;
the volume percentage of the ceramic material is 10% -40% based on the volume percentage of the aluminum alloy ceramic composite material.
In one embodiment, the volume percentage of the binder is 15% -30% of the volume percentage of the powder.
In one embodiment, the binder comprises one or more of a plastic-based binder and a wax-based binder.
In one embodiment, the particle size Dv50 of the powder of the ceramic material and/or the powder of the aluminum alloy material is 2 [ mu ] m to 50 [ mu ] m.
In one embodiment, the particle size Dv50 of the powder of the ceramic material and/or the powder of the aluminum alloy material is 2 [ mu ] m to 15 [ mu ] m.
In one embodiment, in the step of preparing the powder, the ceramic material and the aluminum alloy material are mixed and then subjected to ball milling treatment;
in one embodiment, the rotation speed of the ball milling treatment is 500-1000 r/min, and the time is 1-5 h.
In one embodiment, the degreasing treatment temperature is 250 ℃ to 400 ℃.
In a third aspect of the present application, a support block for a battery pack is provided, including the aluminum alloy ceramic composite material of the first aspect or the aluminum alloy ceramic composite material prepared by the preparation method of the second aspect.
In a fourth aspect of the present application, a battery pack is provided, including a battery module and a battery box for accommodating the battery module, where the battery box includes a housing, a limiting beam, and a supporting block, where the supporting block is disposed between the limiting beam and at least one side wall of the housing, and is used for supporting the limiting beam;
the support block includes the support block for a battery pack according to the third aspect.
In a fifth aspect of the present application, there is provided an electric device including the support block for a battery pack according to the third aspect or the battery pack according to the fourth aspect.
Effects of the invention
According to the aluminum alloy ceramic composite material, the ceramic material with specific volume percentage is introduced into the aluminum alloy material, so that the aluminum alloy ceramic composite material has good strength, elastic modulus and elongation rate, and meets the performance requirement of a battery on the supporting block.
Drawings
Fig. 1 is a schematic view of a battery pack according to an embodiment of the present application;
fig. 2 is a schematic view of a battery module according to an embodiment of the present application;
fig. 3 is an external view schematically showing a battery pack according to an embodiment of the present application;
FIG. 4 is an exploded view of the battery pack of FIG. 3 according to one embodiment of the present application;
fig. 5 is a schematic view of a secondary battery according to an embodiment of the present application;
fig. 6 is an exploded view of the secondary battery of the embodiment of the present application shown in fig. 5;
fig. 7 is a schematic view of an electric device in which a secondary battery according to an embodiment of the present application is used as a power source;
FIG. 8 is a flow chart of a process for preparing an aluminum alloy ceramic composite material according to an embodiment of the present application;
reference numerals illustrate:
1, a battery pack; 2, upper box body; 3, a battery box; 4, a battery module; 5 a secondary battery; 51 a housing; 52 electrode assembly; 53 cover plates; and 6, an electric device.
Detailed Description
Hereinafter, embodiments of an aluminum alloy ceramic composite material, a method for producing the same, a battery pack, and an electric device of the present application are specifically disclosed with reference to the accompanying drawings as appropriate. However, unnecessary detailed description may be omitted. For example, detailed descriptions of well-known matters and repeated descriptions of the actual same structure may be omitted. This is to avoid that the following description becomes unnecessarily lengthy, facilitating the understanding of those skilled in the art. Furthermore, the drawings and the following description are provided for a full understanding of the present application by those skilled in the art, and are not intended to limit the subject matter recited in the claims.
The "range" disclosed herein is defined in terms of lower and upper limits, with a given range being defined by the selection of a lower and an upper limit, the selected lower and upper limits defining the boundaries of the particular range. Ranges that are defined in this way can be inclusive or exclusive of the endpoints, and any combination can be made, i.e., any lower limit can be combined with any upper limit to form a range. For example, if ranges of 60-120 and 80-110 are listed for a particular parameter, it is understood that ranges of 60-110 and 80-120 are also contemplated. Furthermore, if the minimum range values 1 and 2 are listed, and if the maximum range values 3,4 and 5 are listed, the following ranges are all contemplated: 1-3, 1-4, 1-5, 2-3, 2-4 and 2-5. In this application, unless otherwise indicated, the numerical range "a-b" represents a shorthand representation of any combination of real numbers between a and b, where a and b are both real numbers. For example, the numerical range "0-5" means that all real numbers between "0-5" have been listed throughout, and "0-5" is simply a shorthand representation of a combination of these values. When a certain parameter is expressed as an integer of 2 or more, it is disclosed that the parameter is, for example, an integer of 2, 3,4, 5, 6, 7, 8, 9, 10, 11, 12 or the like.
All embodiments and alternative embodiments of the present application may be combined with each other to form new solutions, unless specifically stated otherwise.
All technical features and optional technical features of the present application may be combined with each other to form new technical solutions, unless specified otherwise.
All steps of the present application may be performed sequentially or randomly, preferably sequentially, unless otherwise indicated. For example, the method comprises steps (a) and (b), meaning that the method may comprise steps (a) and (b) performed sequentially, or may comprise steps (b) and (a) performed sequentially. For example, the method may further include step (c), which means that step (c) may be added to the method in any order, for example, the method may include steps (a), (b) and (c), may include steps (a), (c) and (b), may include steps (c), (a) and (b), and the like.
Reference herein to "comprising" and "including" means open ended, as well as closed ended, unless otherwise noted. For example, the terms "comprising" and "comprises" may mean that other components not listed may be included or included, or that only listed components may be included or included.
The term "or" is inclusive in this application, unless otherwise specified. For example, the phrase "a or B" means "a, B, or both a and B. More specifically, either of the following conditions satisfies the condition "a or B": a is true (or present) and B is false (or absent); a is false (or absent) and B is true (or present); or both A and B are true (or present).
At present, the supporting blocks in the battery pack are mainly manufactured by adopting aluminum extrusion profiles which are the same as the aluminum extrusion cross beams, but the aluminum extrusion profiles are difficult to meet the requirements of the supporting blocks on strength and elastic modulus.
In some examples of the present application, an aluminum alloy ceramic composite material is provided, wherein the composition of the aluminum alloy ceramic composite material includes a mixture of a ceramic material and an aluminum alloy material, and the ceramic material is 10% -40% by volume based on the volume percentage of the aluminum alloy ceramic composite material.
According to the aluminum alloy ceramic composite material, the ceramic material with specific volume percentage is introduced into the aluminum alloy material, so that the elastic modulus, the tensile strength and the yield strength of the material can be effectively improved, meanwhile, the higher elongation is maintained, the engineering application and the processing are convenient, the excellent comprehensive mechanical property is realized, and the performance requirement of a battery on a supporting block can be met.
It is understood that by "mixture" is meant that the ceramic material and the aluminum alloy material in the aluminum alloy ceramic composite are intermixed without forming a separate layer structure.
Ceramic materials are understood to mean inorganic nonmetallic materials produced from natural or synthetic compounds by shaping and/or sintering at high temperatures; the aluminum alloy material is an alloy in which a certain amount of other alloying elements are added based on aluminum, and the other alloys are elements capable of alloying with aluminum, and the kind thereof is not particularly limited.
Specifically, the volume percentages of the ceramic materials include, but are not limited to: 10%, 15%, 20%, 25%, 30%, 35%, 40% or a range value between any two of the foregoing. By adopting the proper volume percentage of the ceramic material, better elastic modulus, tensile strength and yield strength can be obtained. Further, the ceramic material is 20% -40% by volume.
In some examples, the ceramic material includes SiC, al 2 O 3 、B 4 C. TiC and TiB 2 One or more of the following. By adopting a proper aluminum alloy material, better elastic modulus, tensile strength and yield strength can be obtained. Further, the ceramic material comprises SiC, B 4 C. TiC and TiB 2 One or more of the following.
In some examples, the aluminum alloy material includes one or more of a 2-series aluminum alloy, a 4-series aluminum alloy, a 5-series aluminum alloy, a 6-series aluminum alloy, and a 7-series aluminum alloy. By adopting a proper aluminum alloy material, better elastic modulus, tensile strength and yield strength can be obtained. Further, the aluminum alloy material includes one or both of a 2-series aluminum alloy and a 4-series aluminum alloy.
As will be appreciated, a 2-series aluminum alloy refers to an aluminum alloy to which at least copper, magnesium, and manganese are added on an aluminum basis;
the 4-series aluminum alloy is an aluminum alloy which is added with at least copper and silicon on the basis of aluminum;
the 5-series aluminum alloy is an aluminum alloy to which at least magnesium is added on the basis of aluminum;
the 6-series aluminum alloy is prepared by adding at least magnesium and silicon based on aluminum, and using Mg 2 An aluminum alloy in which the Si phase is a strengthening phase;
the 7-series aluminum alloy is an aluminum alloy to which at least zinc, magnesium, and copper are added in addition to aluminum.
In some examples, the aluminum alloy ceramic composite material has an elastic modulus of 80 GPa-120 GPa. Specifically, the modulus of elasticity of the aluminum alloy ceramic composite includes, but is not limited to: values in the range of 80GPa, 85GPa, 90GPa, 95GPa, 100GPa, 105GPa, 110GPa, 115GPa, 120GPa, or any two thereof. It will be appreciated that the modulus of elasticity of the aluminium alloy ceramic composite material is measured according to national standard GB/T38897-2020.
In some examples, the tensile strength of the aluminum alloy ceramic composite material is 320-560 mpa. Specifically, the tensile strength of the aluminum alloy ceramic composite includes, but is not limited to: 320MPa, 350MPa, 370MPa, 400MPa, 420MPa, 450MPa, 470MPa, 500MPa, 530MPa, 560MPa, or a range therebetween. It will be appreciated that the tensile strength of the aluminium alloy ceramic composite material is measured according to national standard GB/T228.1-2021.
In some examples, the aluminum alloy ceramic composite material has a yield strength of 210mpa to 480mpa. Specifically, the yield strengths of the aluminum alloy ceramic composite materials include, but are not limited to: 210MPa, 250MPa, 270MPa, 300MPa, 310MPa, 350MPa, 370MPa, 400MPa, 450MPa, 480MPa, or a range therebetween. It will be appreciated that the yield strength of the aluminium alloy ceramic composite material is measured according to national standard GB/T228.1-2021.
In some examples, the aluminum alloy ceramic composite material has an elongation of 6% -20%. Specifically, the elongation of the aluminum alloy ceramic composite includes, but is not limited to: 6%, 7%, 8%, 9%, 10%, 12%, 13%, 15%, 18%, 20%, or a range between any two of the foregoing. It will be appreciated that the elongation of the aluminium alloy ceramic composite material is measured in accordance with national standard GB/T228.1-2021.
In other examples of the present application, a method for preparing an aluminum alloy ceramic composite material is provided, including the steps of:
mixing powder of ceramic material and powder of aluminum alloy material to prepare powder;
mixing the powder with a binder, molding, and preparing a green body;
degreasing and sintering the green body to prepare the aluminum alloy ceramic composite material;
the volume percentage of the ceramic material is 10% -40% based on the volume percentage of the aluminum alloy ceramic composite material.
It will be appreciated that the above preparation method is powder injection moulding (MIM injection moulding). According to the preparation method of the aluminum alloy ceramic composite material, on the basis of reasonably matching the powder of the ceramic material and the powder of the aluminum alloy material, the MIM injection molding method is adopted to realize the molding of the material, and the preparation method has high processing efficiency and simple steps and is easy to control when products such as supporting blocks are manufactured.
Without limitation, the step of shaping includes: and injecting the mixed material of the powder and the binder into a mould to prepare the green body. It can be appreciated that the structural design of the mold can be performed according to different product requirements, such as the design of the mold according to the battery pack structure, so as to prepare the support block with a required structure.
It will be appreciated that the related technical solutions of the volume percentages and types of the ceramic material and the aluminum alloy material are similar to those of the aluminum alloy ceramic composite material described above, and will not be described herein.
In some examples, the binder is 15% -30% by volume of the powder. Specifically, the volume percentages of the binder include, but are not limited to: 15%, 20%, 25%, 30%, or a range between any two of the foregoing.
In some examples, the binder includes one or more of a plastic-based binder and a wax-based binder.
It is understood that plastic-based adhesives refer to adhesives based on broad-sense plastics (mass% not less than 70%). The wax-based binder is a binder which takes wax (the mass percent is more than or equal to 70%) as a main component.
In some examples, the particle size Dv50 of the powder of the ceramic material and/or the powder of the aluminum alloy material is 2-50 [ mu ] m. By adopting proper material granularity, better mechanical property can be obtained. Specifically, the particle size Dv50 of the powder of the ceramic material and/or the powder of the aluminum alloy material includes, but is not limited to: 2 [ mu ] m, 5 [ mu ] m, 10 [ mu ] m, 15 [ mu ] m, 20 [ mu ] m, 25 [ mu ] m, 30 [ mu ] m, 35 [ mu ] m, 40 [ mu ] m, 45 [ mu ] m, 50 [ mu ] m or a range value between any two of the above. Further, the granularity Dv50 of the powder of the ceramic material and/or the powder of the aluminum alloy material is 2-15 mu m.
Understandably, dv50: it is generally meant that 50% of the total volume of the material has a particle diameter greater than this value, and that 50% of the total volume has a particle diameter less than this value. Dv50 represents the median particle diameter/median particle size of the material powder. The median particle diameter Dv50 is in the sense known in the art and can be determined by means of instruments and methods known in the art. For example, a particle size distribution-laser diffraction method can be used, and reference is made to GB/T19077-2016. Reference may be made in particular to the following test steps: the particle sample may be dispersed in a suitable liquid (e.g., deionized water) or gas at a suitable concentration by sonication or the like, and tested using a Malvern instrument model Mastersizer-3000: the sample is passed through a monochromatic light beam (typically a laser) and the scattered light is measured by a multi-element detector as it is scattered at different angles after encountering the particles, and these values relating to the scattering pattern are stored and used for subsequent analysis. These quantized scattering data are transformed by appropriate optical modeling and mathematical procedures to yield the percentage of particle volume over a series of discrete particle size segments relative to the total volume of the particles, thereby yielding a particle size volume distribution.
In some examples, in the step of preparing the powder, the ceramic material and the aluminum alloy material are mixed and then subjected to a ball milling process. The ball milling treatment may be performed in a ball mill. Without limitation, the rotation speed of the ball milling treatment is 500-1000 r/min, and the time is 1-5 h. The ball milling treatment may be performed using corundum balls.
It will be appreciated that the degreasing treatment is primarily aimed at removing the binder. In some examples, the degreasing treatment is performed at a temperature of 250 ℃ to 400 ℃. Specifically, the temperature of the degreasing treatment includes, but is not limited to: 250 ℃, 280 ℃, 300 ℃, 320 ℃, 350 ℃, 400 ℃ or a range between any two of the above.
It is to be understood that the sintering process may be performed in a vacuum sintering furnace, and the sintering temperature may be set according to the type of the aluminum alloy material, so that the surface of the aluminum alloy material is melted and then compounded with the ceramic. In some examples, the sintering process is at a temperature of 480 ℃ to 600 ℃. Specifically, the temperature of the sintering process includes, but is not limited to: 480 ℃, 490 ℃, 500 ℃, 510 ℃, 520 ℃, 530 ℃, 540 ℃, 550 ℃, 560 ℃, 570 ℃, 580 ℃, 590 ℃, 600 ℃ or a range of values between any two of the above.
Further examples of the present application provide a support block for a battery pack, including the aluminum alloy ceramic composite material described above or the aluminum alloy ceramic composite material prepared by the preparation method described above. The aluminum alloy ceramic composite material has good strength and elastic modulus, is particularly suitable for manufacturing support blocks in battery packs, and effectively limits the deformation of the aluminum extrusion cross beam, thereby limiting the expansion deformation of the battery cells.
Other examples of the present application provide a battery pack including a battery module and a battery case housing the battery module. As shown in fig. 1, the battery box includes a housing, a limiting beam 200, and a supporting block 400, where the supporting block 400 is disposed between the limiting beam 200 and at least one side wall 300 of the housing, and is used for supporting the limiting beam 200, and the supporting block 400 includes the supporting block for battery pack as described above. Without limitation, the limiting beam 200 may be an extruded aluminum beam, and the limiting beam 200 and other limiting members together form the battery module placement area 100 for placing the battery module. In the battery pack, the limiting beam 200 is supported by the supporting block 400, so that the limiting beam 200 effectively limits the battery modules in the battery module placement area 100, and deformation of the limiting beam 200 caused by expansion of the battery modules is reduced.
Further examples of the present application provide an electrical device comprising a support block for a battery pack as described above or a battery pack as described above.
The battery module, the battery pack, and the power consumption device of the present application are further described below, with appropriate reference to the accompanying drawings without limitation.
In some embodiments, the battery module is assembled from secondary batteries, and the number of secondary batteries included in the battery module may be one or more, and the specific number may be selected by one skilled in the art according to the application and capacity of the battery module.
Fig. 2 is a battery module 4 as an example. Referring to fig. 2, in the battery module 4, a plurality of secondary batteries 5 may be sequentially arranged in the longitudinal direction of the battery module 4. Of course, the arrangement may be performed in any other way. The plurality of secondary batteries 5 may be further fixed by fasteners.
Alternatively, the battery module 4 may further include a case having an accommodating space in which the plurality of secondary batteries 5 are accommodated.
In some embodiments, the battery modules are assembled into a battery pack, and the number of battery modules included in the battery pack may be one or more, and the specific number may be selected by one skilled in the art according to the application and capacity of the battery pack.
Fig. 3 and 4 are battery packs 1 as an example. Referring to fig. 3 and 4, a battery case 3 (the specific structure of which is shown in fig. 1 above) and a plurality of battery modules 4 disposed in the battery case 3 may be included in the battery pack 1, and further, an upper case 2 corresponding to the battery case 3 may be included, the upper case 2 being capable of being covered on the battery case 3 and forming a closed space for accommodating the battery modules 4. The plurality of battery modules 4 may be arranged in the battery case 3 in any manner.
In one embodiment of the present application, a secondary battery in a battery module generally includes a positive electrode tab, a negative electrode tab, an electrolyte, and a separator. During the charge and discharge of the battery, active ions are inserted and extracted back and forth between the positive electrode plate and the negative electrode plate. The electrolyte plays a role in ion conduction between the positive electrode plate and the negative electrode plate. The isolating film is arranged between the positive pole piece and the negative pole piece, and mainly plays a role in preventing the positive pole piece and the negative pole piece from being short-circuited, and meanwhile ions can pass through the isolating film.
Positive electrode plate
The positive electrode sheet comprises a positive electrode current collector and a positive electrode active material layer arranged on at least one surface of the positive electrode current collector, wherein the positive electrode active material layer comprises the positive electrode active material of the first aspect of the application.
As an example, the positive electrode current collector has two surfaces opposing in its own thickness direction, and the positive electrode active material layer is provided on either one or both of the two surfaces opposing the positive electrode current collector.
In some of these embodiments, the positive current collector may be a metal foil or a composite current collector. For example, as the metal foil, aluminum foil may be used. The composite current collector may include a polymeric material base layer and a metal layer formed on at least one surface of the polymeric material base layer. The composite current collector may be formed by forming a metal material (aluminum, aluminum alloy, nickel alloy, titanium alloy, silver alloy, etc.) on a polymer material substrate (such as a substrate of polypropylene (PP), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polystyrene (PS), polyethylene (PE), etc.).
In some of these embodiments, the positive electrode active material may employ a positive electrode active material for a battery as known in the artA sexual material. As an example, the positive electrode active material may include at least one of the following materials: olivine structured lithium-containing phosphates, lithium transition metal oxides and their respective modified compounds. However, the present application is not limited to these materials, and other conventional materials that can be used as a battery positive electrode active material may be used. These positive electrode active materials may be used alone or in combination of two or more. Examples of lithium transition metal oxides may include, but are not limited to, lithium cobalt oxide (e.g., liCoO) 2 ) Lithium nickel oxide (e.g. LiNiO) 2 ) Lithium manganese oxide (e.g. LiMnO 2 、LiMn 2 O 4 ) Lithium nickel cobalt oxide, lithium manganese cobalt oxide, lithium nickel manganese oxide, lithium nickel cobalt manganese oxide (e.g., liNi) 1/3 Co 1/3 Mn 1/3 O 2 (also referred to as NCM) 333 ）、LiNi 0.5 Co 0.2 Mn 0.3 O 2 (also referred to as NCM) 523 ）、LiNi 0.5 Co 0.25 Mn 0.25 O 2 (also referred to as NCM) 211 ）、LiNi 0.6 Co 0.2 Mn 0.2 O 2 (also referred to as NCM) 622 ）、LiNi 0.8 Co 0.1 Mn 0.1 O 2 (also referred to as NCM) 811 ) Lithium nickel cobalt aluminum oxide (e.g. LiNi 0.85 Co 0.15 Al 0.05 O 2 ) And at least one of its modified compounds and the like. Examples of olivine structured lithium-containing phosphates may include, but are not limited to, lithium iron phosphate (e.g., liFePO 4 (also abbreviated as LFP)), composite material of lithium iron phosphate and carbon, and manganese lithium phosphate (such as LiMnPO) 4 ) At least one of a composite material of lithium manganese phosphate and carbon, and a composite material of lithium manganese phosphate and carbon.
In some of these embodiments, the positive electrode active material layer may further optionally include a binder. As an example, the binder may include at least one of polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), a vinylidene fluoride-tetrafluoroethylene-propylene terpolymer, a vinylidene fluoride-hexafluoropropylene-tetrafluoroethylene terpolymer, a tetrafluoroethylene-hexafluoropropylene copolymer, and a fluoroacrylate resin.
In some of these embodiments, the positive electrode active material layer may further optionally include a conductive agent. As an example, the conductive agent may include at least one of superconducting carbon, acetylene black, carbon black, ketjen black, carbon dots, carbon nanotubes, graphene, and carbon nanofibers.
In some of these embodiments, the positive electrode sheet may be prepared by: dispersing the above components for preparing the positive electrode sheet, such as the positive electrode active material, the conductive agent, the binder and any other components, in a solvent (such as N-methylpyrrolidone) to form a positive electrode slurry; and (3) coating the positive electrode slurry on a positive electrode current collector, and obtaining a positive electrode plate after the procedures of drying, cold pressing and the like.
Negative pole piece
The negative electrode tab includes a negative electrode current collector and a negative electrode active material layer disposed on at least one surface of the negative electrode current collector, the negative electrode active material layer including a negative electrode active material.
As an example, the anode current collector has two surfaces opposing in its own thickness direction, and the anode active material layer is provided on either one or both of the two surfaces opposing the anode current collector.
In some of these embodiments, the negative current collector may be a metal foil or a composite current collector. For example, as the metal foil, copper foil may be used. The composite current collector may include a polymeric material base layer and a metal layer formed on at least one surface of the polymeric material base material. The composite current collector may be formed by forming a metal material (copper, copper alloy, nickel alloy, titanium alloy, silver alloy, etc.) on a polymer material substrate (such as a substrate of polypropylene (PP), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polystyrene (PS), polyethylene (PE), etc.).
In some of these embodiments, the negative active material may employ a negative active material for a battery, which is well known in the art. As an example, the anode active material may include at least one of the following materials: artificial graphite, natural graphite, soft carbon, hard carbon, silicon-based materials, tin-based materials, lithium titanate, and the like. The silicon-based material may be at least one selected from elemental silicon, silicon oxygen compounds, silicon carbon composites, silicon nitrogen composites, and silicon alloys. The tin-based material may be at least one selected from elemental tin, tin oxide, and tin alloys. However, the present application is not limited to these materials, and other conventional materials that can be used as a battery anode active material may be used. These negative electrode active materials may be used alone or in combination of two or more.
In some of these embodiments, the negative electrode active material layer may further optionally include a binder. The binder may be at least one selected from Styrene Butadiene Rubber (SBR), polyacrylic acid (PAA), sodium Polyacrylate (PAAs), polyacrylamide (PAM), polyvinyl alcohol (PVA), sodium Alginate (SA), polymethacrylic acid (PMAA) and carboxymethyl chitosan (CMCS).
In some of these embodiments, the anode active material layer may further optionally include a conductive agent. The conductive agent is at least one selected from superconducting carbon, acetylene black, carbon black, ketjen black, carbon dots, carbon nanotubes, graphene and carbon nanofibers.
In some of these embodiments, the anode active material layer may optionally further include other adjuvants, such as a thickener (e.g., sodium carboxymethyl cellulose (CMC-Na)), and the like.
In some of these embodiments, the negative electrode sheet may be prepared by: dispersing the above components for preparing the negative electrode sheet, such as a negative electrode active material, a conductive agent, a binder and any other components, in a solvent (e.g., deionized water) to form a negative electrode slurry; and coating the negative electrode slurry on a negative electrode current collector, and obtaining a negative electrode plate after the procedures of drying, cold pressing and the like.
Electrolyte composition
The electrolyte plays a role in ion conduction between the positive electrode plate and the negative electrode plate. The type of electrolyte is not particularly limited in this application, and may be selected according to the need. For example, the electrolyte may be liquid, gel, or all solid.
In some of these embodiments, the electrolyte is an electrolyte. The electrolyte includes an electrolyte salt and a solvent.
In some of these embodiments, the electrolyte salt may be selected from at least one of lithium hexafluorophosphate, lithium tetrafluoroborate, lithium perchlorate, lithium hexafluoroarsenate, lithium bis-fluorosulfonyl imide, lithium bis-trifluoromethanesulfonyl imide, lithium trifluoromethanesulfonate, lithium difluorophosphate, lithium difluorooxalato borate, lithium difluorodioxaato phosphate, and lithium tetrafluorooxalato phosphate.
In some of these embodiments, the solvent may be selected from at least one of ethylene carbonate, propylene carbonate, methylethyl carbonate, diethyl carbonate, dimethyl carbonate, dipropyl carbonate, methylpropyl carbonate, ethylpropyl carbonate, butylene carbonate, fluoroethylene carbonate, methyl formate, methyl acetate, ethyl acetate, propyl acetate, methyl propionate, ethyl propionate, propyl propionate, methyl butyrate, ethyl butyrate, 1, 4-butyrolactone, sulfolane, dimethylsulfone, methylsulfone, and diethylsulfone.
In some of these embodiments, the electrolyte further optionally includes an additive. For example, the additives may include negative electrode film-forming additives, positive electrode film-forming additives, and may also include additives capable of improving certain properties of the battery, such as additives that improve the overcharge performance of the battery, additives that improve the high or low temperature performance of the battery, and the like.
Isolation film
In some of these embodiments, a separator is further included in the secondary battery. The type of the separator is not particularly limited, and any known porous separator having good chemical stability and mechanical stability may be used.
In some embodiments, the material of the isolating film may be at least one selected from glass fiber, non-woven fabric, polyethylene, polypropylene and polyvinylidene fluoride. The separator may be a single-layer film or a multilayer composite film, and is not particularly limited. When the separator is a multilayer composite film, the materials of the respective layers may be the same or different, and are not particularly limited.
In some of these embodiments, the positive electrode tab, the negative electrode tab, and the separator may be manufactured into an electrode assembly through a winding process or a lamination process.
In some of these embodiments, the secondary battery may include an outer package. The outer package may be used to encapsulate the electrode assembly and electrolyte described above.
In some of these embodiments, the outer package of the secondary battery may be a hard case, such as a hard plastic case, an aluminum case, a steel case, or the like. The exterior package of the secondary battery may also be a pouch type pouch, for example. The material of the flexible bag may be plastic, and examples of the plastic include polypropylene, polybutylene terephthalate, and polybutylene succinate.
The shape of the secondary battery is not particularly limited in the present application, and may be cylindrical, square, or any other shape. For example, fig. 5 is a secondary battery 5 of a square structure as one example.
In some of these embodiments, referring to fig. 6, the overpack may include a housing 51 and a cover 53. The housing 51 may include a bottom plate and a side plate connected to the bottom plate, where the bottom plate and the side plate enclose a receiving chamber. The housing 51 has an opening communicating with the accommodation chamber, and the cover plate 53 can be provided to cover the opening to close the accommodation chamber. The positive electrode tab, the negative electrode tab, and the separator may be formed into the electrode assembly 52 through a winding process or a lamination process. The electrode assembly 52 is packaged in the receiving chamber. The electrolyte is impregnated in the electrode assembly 52. The number of electrode assemblies 52 included in the secondary battery 5 may be one or more, and those skilled in the art may select according to specific practical requirements.
In addition, the application also provides an electric device, which comprises at least one of the secondary battery, the battery module or the battery pack. The secondary battery, the battery module, or the battery pack may be used as a power source of the electric device, and may also be used as an energy storage unit of the electric device. The powered devices may include, but are not limited to, mobile devices, electric vehicles, electric trains, boats and ships, and satellites, energy storage systems, and the like. The mobile device may be, for example, a mobile phone, a notebook computer, etc.; the electric vehicle may be, for example, a pure electric vehicle, a hybrid electric vehicle, a plug-in hybrid electric vehicle, an electric bicycle, an electric scooter, an electric golf car, an electric truck, or the like, but is not limited thereto.
As the electricity consumption device, a secondary battery, a battery module, or a battery pack may be selected according to the use requirements thereof.
Fig. 7 shows an example of the power utilization device 6. The electric device is a pure electric vehicle, a hybrid electric vehicle, a plug-in hybrid electric vehicle or the like. In order to meet the high power and high energy density requirements of the secondary battery by the power consumption device, a battery pack or a battery module may be employed.
As another example, the device may be a cell phone, tablet computer, notebook computer, or the like. The device is generally required to be light and thin, and a secondary battery can be used as a power source.
Examples
Hereinafter, embodiments of the present application are described. The embodiments described below are exemplary only for the purpose of illustrating the present application and are not to be construed as limiting the present application. The examples are not to be construed as limiting the specific techniques or conditions described in the literature in this field or as per the specifications of the product. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
Example 1
The embodiment provides a preparation method of a support block for a battery pack of an aluminum alloy ceramic composite material, wherein a process flow chart is shown in fig. 8, and the steps are as follows:
(1) Designing a supporting block structure aiming at a certain battery pack product structure, and correspondingly designing a mould and manufacturing the mould;
(2) As the aluminum alloy material, 6061 alloy particles (particle size Dv50 of 5 μm) and SiC particles (particle size Dv50 of 5 μm) were selected as the ceramic material, and the volume ratio of 6061 alloy particles to SiC particles was 3:1 (i.e., 25% by volume of SiC particles); mixing 6061 alloy particles and SiC particles in ball milling equipment for ball milling, wherein the ball milling parameters are 800r/min, the ball milling time is 2 hours, and after ball milling, the powder and a wax-based binder (comprising 70wt% of paraffin, 20 wt% of microcrystalline wax and 10wt% of methyl ethyl ketone) are uniformly mixed, and the volume percentage of the wax-based binder is 30% for standby;
(3) Mixing the step (2) by using injection molding equipment, and then performing powder injection molding, namely injecting the mixture into the die manufactured in the step (1) to manufacture a green body of the supporting block; and (3) placing the green body of the support block into a vacuum oven, baking and degreasing at 300 ℃, and then placing the degreased blank into a vacuum sintering furnace for sintering at 580 ℃ to prepare a finished support block product.
The supporting blocks of examples 2 to 12 and the supporting block of comparative example 1 are similar to the manufacturing method of example 1, mainly differing in the kind of aluminum alloy material, the kind of ceramic material, the proportion of ceramic material, the kind of binder, the kind of aluminum alloy material, the grain size of ceramic material, and the like. The details are shown in table 1 below.
The support blocks of examples 1-12 and the support block of comparative example 1 were tested for modulus of elasticity, tensile strength, yield strength, and elongation, as follows:
(1) Modulus of elasticity: the elastic modulus is measured by an ultrasonic measurement method according to national standard GB/T38897-2020.
(2) Tensile strength, yield strength and elongation test: the measurement was carried out by a tensile tester according to national standard GB/T228.1-2021.
The test results are shown in table 1 below:
TABLE 1
Note that: the composition of the "plastic-based" binder in example 12 is: 72wt% polystyrene, 15wt% polystyrene, 10wt% polyethylene and 3wt% stearic acid.
As can be seen from the comparison between the comparative example 1 and the examples, the ceramic material is introduced into the aluminum alloy material, so that the elastic modulus, the tensile strength and the yield strength of the material can be obviously improved, and meanwhile, the higher elongation is maintained, so that the engineering use is satisfied.
As is clear from the comparison between comparative example 2 and examples, the ceramic material has a volume percentage that is too low, and the elastic modulus, tensile strength and yield strength of the material are significantly reduced although the elongation is somewhat increased.
As is clear from the comparison between comparative example 3 and examples, the ceramic material has an excessively high volume percentage, and although the elastic modulus, tensile strength and yield strength of the material are improved, the elongation is low, which is not suitable for engineering use.
The present application is not limited to the above embodiment. The above embodiments are merely examples, and embodiments having substantially the same configuration and the same effects as those of the technical idea within the scope of the present application are included in the technical scope of the present application. Further, various modifications that can be made to the embodiments and other modes of combining some of the constituent elements in the embodiments, which are conceivable to those skilled in the art, are also included in the scope of the present application within the scope not departing from the gist of the present application.
Claims (16)
1. The aluminum alloy ceramic composite material is characterized by comprising a mixture of ceramic materials and aluminum alloy materials, wherein the ceramic materials account for 10-40% by volume of the aluminum alloy ceramic composite material.
2. The aluminum alloy ceramic composite according to claim 1, wherein the ceramic material is 20-40% by volume based on the volume of the aluminum alloy ceramic composite.
3. The aluminum alloy ceramic composite according to claim 1, wherein the ceramic material comprises SiC, al 2 O 3 、B 4 C. TiC and TiB 2 One or more of the following.
4. The aluminum alloy ceramic composite according to claim 1, wherein the aluminum alloy material comprises one or more of a 2-series aluminum alloy, a 4-series aluminum alloy, a 5-series aluminum alloy, a 6-series aluminum alloy, and a 7-series aluminum alloy.
5. The aluminum alloy ceramic composite according to any one of claims 1 to 4, wherein the aluminum alloy ceramic composite has at least one of the following features:
(1) The elastic modulus is 80 GPa-120 GPa;
(2) The tensile strength is 320-560 MPa;
(3) The yield strength is 210-480 MPa;
(4) The elongation rate is 6% -20%.
6. The preparation method of the aluminum alloy ceramic composite material is characterized by comprising the following steps of:
mixing powder of ceramic material and powder of aluminum alloy material to prepare powder;
mixing the powder with a binder, molding, and preparing a green body;
degreasing and sintering the green body to prepare the aluminum alloy ceramic composite material;
the volume percentage of the ceramic material is 10% -40% based on the volume percentage of the aluminum alloy ceramic composite material.
7. The method for preparing an aluminum alloy ceramic composite material according to claim 6, wherein the volume percentage of the binder is 15% -30% based on the volume percentage of the powder.
8. The method of preparing an aluminum alloy ceramic composite according to claim 6, wherein the binder comprises one or more of a plastic-based binder and a wax-based binder.
9. The method for preparing the aluminum alloy ceramic composite material according to claim 6, wherein the particle size Dv50 of the powder of the ceramic material and/or the powder of the aluminum alloy material is 2-50 [ mu ] m.
10. The method for preparing the aluminum alloy ceramic composite material according to claim 9, wherein the particle size Dv50 of the powder of the ceramic material and/or the powder of the aluminum alloy material is 2 [ mu ] m to 15 [ mu ] m.
11. The method of producing aluminum alloy ceramic composite material according to claim 6, wherein in the step of producing a powder material, the ceramic material and the aluminum alloy material are mixed and then subjected to ball milling.
12. The method for preparing an aluminum alloy ceramic composite material according to claim 11, wherein the rotation speed of the ball milling treatment is 500-1000 r/min, and the time is 1-5 h.
13. The method for preparing an aluminum alloy ceramic composite material according to any one of claims 6 to 12, wherein the degreasing treatment temperature is 250 ℃ to 400 ℃.
14. The support block for the battery pack is characterized by comprising the aluminum alloy ceramic composite material according to any one of claims 1-5 or the aluminum alloy ceramic composite material prepared by the preparation method according to any one of claims 6-13.
15. The battery pack is characterized by comprising a battery module and a battery box for accommodating the battery module, wherein the battery box comprises a shell, a limiting beam and a supporting block, and the supporting block is arranged between the limiting beam and at least one side wall of the shell and is used for supporting the limiting beam;
the support block includes the support block for a battery pack according to claim 14.
16. An electric device comprising the battery pack support block according to claim 14 or the battery pack according to claim 15.
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