JP2023504473A - 二次電池及びその調製方法、当該二次電池を含む装置 - Google Patents
二次電池及びその調製方法、当該二次電池を含む装置 Download PDFInfo
- Publication number
- JP2023504473A JP2023504473A JP2022532139A JP2022532139A JP2023504473A JP 2023504473 A JP2023504473 A JP 2023504473A JP 2022532139 A JP2022532139 A JP 2022532139A JP 2022532139 A JP2022532139 A JP 2022532139A JP 2023504473 A JP2023504473 A JP 2023504473A
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- active material
- electrode active
- film layer
- secondary battery
- 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.)
- Granted
Links
- 238000002360 preparation method Methods 0.000 title claims description 11
- 239000007773 negative electrode material Substances 0.000 claims abstract description 165
- 238000000034 method Methods 0.000 claims abstract description 33
- 239000011164 primary particle Substances 0.000 claims abstract description 32
- 229910021383 artificial graphite Inorganic materials 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims description 37
- 238000009826 distribution Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 17
- 239000011163 secondary particle Substances 0.000 claims description 15
- 238000005087 graphitization Methods 0.000 claims description 12
- 238000007600 charging Methods 0.000 abstract description 23
- 239000010410 layer Substances 0.000 description 127
- 238000005259 measurement Methods 0.000 description 26
- 239000003792 electrolyte Substances 0.000 description 14
- 239000000853 adhesive Substances 0.000 description 13
- 230000001070 adhesive effect Effects 0.000 description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- -1 argon ion Chemical class 0.000 description 11
- 150000002500 ions Chemical class 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- 239000002033 PVDF binder Substances 0.000 description 8
- 239000000654 additive Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 239000002131 composite material Substances 0.000 description 8
- 238000013461 design Methods 0.000 description 8
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 8
- 239000007774 positive electrode material Substances 0.000 description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 239000006258 conductive agent Substances 0.000 description 7
- 229910052744 lithium Inorganic materials 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 239000011149 active material Substances 0.000 description 6
- 239000008151 electrolyte solution Substances 0.000 description 6
- 239000011888 foil Substances 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 238000000691 measurement method Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 4
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical group O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000005056 compaction Methods 0.000 description 4
- 230000001351 cycling effect Effects 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011267 electrode slurry Substances 0.000 description 4
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 4
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- TZIHFWKZFHZASV-UHFFFAOYSA-N methyl formate Chemical compound COC=O TZIHFWKZFHZASV-UHFFFAOYSA-N 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 239000006245 Carbon black Super-P Substances 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Substances [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000013467 fragmentation Methods 0.000 description 3
- 238000006062 fragmentation reaction Methods 0.000 description 3
- 229910021437 lithium-transition metal oxide Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 235000021317 phosphate Nutrition 0.000 description 3
- 238000001878 scanning electron micrograph Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 2
- HNAGHMKIPMKKBB-UHFFFAOYSA-N 1-benzylpyrrolidine-3-carboxamide Chemical compound C1C(C(=O)N)CCN1CC1=CC=CC=C1 HNAGHMKIPMKKBB-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- SBLRHMKNNHXPHG-UHFFFAOYSA-N 4-fluoro-1,3-dioxolan-2-one Chemical compound FC1COC(=O)O1 SBLRHMKNNHXPHG-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- JGFBQFKZKSSODQ-UHFFFAOYSA-N Isothiocyanatocyclopropane Chemical compound S=C=NC1CC1 JGFBQFKZKSSODQ-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 2
- 239000006230 acetylene black Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000006256 anode slurry Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- OBNCKNCVKJNDBV-UHFFFAOYSA-N butanoic acid ethyl ester Natural products CCCC(=O)OCC OBNCKNCVKJNDBV-UHFFFAOYSA-N 0.000 description 2
- PWLNAUNEAKQYLH-UHFFFAOYSA-N butyric acid octyl ester Natural products CCCCCCCCOC(=O)CCC PWLNAUNEAKQYLH-UHFFFAOYSA-N 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
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- VUPKGFBOKBGHFZ-UHFFFAOYSA-N dipropyl carbonate Chemical compound CCCOC(=O)OCCC VUPKGFBOKBGHFZ-UHFFFAOYSA-N 0.000 description 2
- 239000002003 electrode paste Substances 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- CYEDOLFRAIXARV-UHFFFAOYSA-N ethyl propyl carbonate Chemical compound CCCOC(=O)OCC CYEDOLFRAIXARV-UHFFFAOYSA-N 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 239000003273 ketjen black Substances 0.000 description 2
- 239000011244 liquid electrolyte Substances 0.000 description 2
- 229910003473 lithium bis(trifluoromethanesulfonyl)imide Inorganic materials 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
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 2
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 2
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 description 2
- QSZMZKBZAYQGRS-UHFFFAOYSA-N lithium;bis(trifluoromethylsulfonyl)azanide Chemical compound [Li+].FC(F)(F)S(=O)(=O)[N-]S(=O)(=O)C(F)(F)F QSZMZKBZAYQGRS-UHFFFAOYSA-N 0.000 description 2
- DVATZODUVBMYHN-UHFFFAOYSA-K lithium;iron(2+);manganese(2+);phosphate Chemical compound [Li+].[Mn+2].[Fe+2].[O-]P([O-])([O-])=O DVATZODUVBMYHN-UHFFFAOYSA-K 0.000 description 2
- ILXAVRFGLBYNEJ-UHFFFAOYSA-K lithium;manganese(2+);phosphate Chemical compound [Li+].[Mn+2].[O-]P([O-])([O-])=O ILXAVRFGLBYNEJ-UHFFFAOYSA-K 0.000 description 2
- MCVFFRWZNYZUIJ-UHFFFAOYSA-M lithium;trifluoromethanesulfonate Chemical compound [Li+].[O-]S(=O)(=O)C(F)(F)F MCVFFRWZNYZUIJ-UHFFFAOYSA-M 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- KKQAVHGECIBFRQ-UHFFFAOYSA-N methyl propyl carbonate Chemical compound CCCOC(=O)OC KKQAVHGECIBFRQ-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 2
- UUIQMZJEGPQKFD-UHFFFAOYSA-N n-butyric acid methyl ester Natural products CCCC(=O)OC UUIQMZJEGPQKFD-UHFFFAOYSA-N 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- 229920002961 polybutylene succinate Polymers 0.000 description 2
- 239000004631 polybutylene succinate Substances 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 229940090181 propyl acetate Drugs 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000002210 silicon-based material Substances 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 2
- HHVIBTZHLRERCL-UHFFFAOYSA-N sulfonyldimethane Chemical compound CS(C)(=O)=O HHVIBTZHLRERCL-UHFFFAOYSA-N 0.000 description 2
- 239000011366 tin-based material Substances 0.000 description 2
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- MBDUIEKYVPVZJH-UHFFFAOYSA-N 1-ethylsulfonylethane Chemical compound CCS(=O)(=O)CC MBDUIEKYVPVZJH-UHFFFAOYSA-N 0.000 description 1
- YBJCDTIWNDBNTM-UHFFFAOYSA-N 1-methylsulfonylethane Chemical compound CCS(C)(=O)=O YBJCDTIWNDBNTM-UHFFFAOYSA-N 0.000 description 1
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-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
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 102000004310 Ion Channels Human genes 0.000 description 1
- 229910013188 LiBOB Inorganic materials 0.000 description 1
- 229910010941 LiFSI Inorganic materials 0.000 description 1
- 229910015872 LiNi0.8Co0.1Mn0.1O2 Inorganic materials 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- 229910001290 LiPF6 Inorganic materials 0.000 description 1
- 229910000572 Lithium Nickel Cobalt Manganese Oxide (NCM) Inorganic materials 0.000 description 1
- AUBNQVSSTJZVMY-UHFFFAOYSA-M P(=O)([O-])(O)O.C(C(=O)O)(=O)F.C(C(=O)O)(=O)F.C(C(=O)O)(=O)F.C(C(=O)O)(=O)F.[Li+] Chemical compound P(=O)([O-])(O)O.C(C(=O)O)(=O)F.C(C(=O)O)(=O)F.C(C(=O)O)(=O)F.C(C(=O)O)(=O)F.[Li+] AUBNQVSSTJZVMY-UHFFFAOYSA-M 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 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
- 238000002441 X-ray diffraction Methods 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
- SYRDSFGUUQPYOB-UHFFFAOYSA-N [Li+].[Li+].[Li+].[O-]B([O-])[O-].FC(=O)C(F)=O Chemical compound [Li+].[Li+].[Li+].[O-]B([O-])[O-].FC(=O)C(F)=O SYRDSFGUUQPYOB-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
- 230000004308 accommodation Effects 0.000 description 1
- 238000009825 accumulation Methods 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
- 239000002253 acid Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- ACKHWUITNXEGEP-UHFFFAOYSA-N aluminum cobalt(2+) nickel(2+) oxygen(2-) Chemical compound [O-2].[Al+3].[Co+2].[Ni+2] ACKHWUITNXEGEP-UHFFFAOYSA-N 0.000 description 1
- 239000006183 anode active material Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 238000010280 constant potential charging Methods 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
- 238000010281 constant-current constant-voltage charging Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 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
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 description 1
- DEUISMFZZMAAOJ-UHFFFAOYSA-N lithium dihydrogen borate oxalic acid Chemical compound B([O-])(O)O.C(C(=O)O)(=O)O.C(C(=O)O)(=O)O.[Li+] DEUISMFZZMAAOJ-UHFFFAOYSA-N 0.000 description 1
- 229910001540 lithium hexafluoroarsenate(V) 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
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- VDVLPSWVDYJFRW-UHFFFAOYSA-N lithium;bis(fluorosulfonyl)azanide Chemical compound [Li+].FS(=O)(=O)[N-]S(F)(=O)=O VDVLPSWVDYJFRW-UHFFFAOYSA-N 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
- 230000007774 longterm Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000010450 olivine Substances 0.000 description 1
- 229910052609 olivine Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002153 silicon-carbon composite material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 description 1
- 229910021384 soft carbon Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- QHGNHLZPVBIIPX-UHFFFAOYSA-N tin(ii) oxide Chemical class [Sn]=O QHGNHLZPVBIIPX-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- ZSDSQXJSNMTJDA-UHFFFAOYSA-N trifluralin Chemical compound CCCN(CCC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O ZSDSQXJSNMTJDA-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1393—Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/362—Composites
- H01M4/364—Composites as mixtures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
Description
負極集電体と、第1の負極フィルム層及び第2の負極フィルム層を含む負極フィルム層とを含む負極シートを備え、
前記第1の負極フィルム層は、負極集電体の少なくとも一方の表面に設けられ、且つ第1の負極活性材料を含み、
前記第2の負極フィルム層は、第1の負極フィルム層に設けられ、且つ第2の負極活性材料を含み、
前記第1の負極活性材料と前記第2の負極活性材料は、いずれも人造黒鉛を含み、
前記第1の負極活性材料は一次粒子を含み、且つ前記第1の負極活性材料において前記一次粒子の数量比率AがA≧50%を満たす、二次電池を提供する。
1)負極集電体の少なくとも一方の表面に、第1の負極活性材料を含む第1の負極フィルム層を形成する工程と、
2)前記第1の負極フィルム層に第2の負極活性材料を含む第2の負極フィルム層を形成する工程と、を含み、
ここで、前記第1の負極活性材料及び前記第2の負極活性材料は、いずれも人造黒鉛を含み、
前記第1の負極活性材料は一次粒子を含み、且つ第1の負極活性材料における前記一次粒子の数量比率がA≧50%である、二次電池の調製方法を提供する。
1電池パック
2上部筐体
3下部筐体
4電池モジュール
5二次電池
51ケース
52電極アセンブリ
53カバープレート
10負極シート
101負極集電体
102第2の負極フィルム層
103第1の負極フィルム層
二次電池
[負極シート]
Dv10:負極活性材料の累積体積分布百分率が10%に達した時に対応する粒径。
Dv50:負極活性材料の累積体積分布百分率が50%に達した時に対応する粒径。
(1)まず、冷間プレス後の負極フィルム層を任意に選択し、第2の負極活性材料をサンプリング(例えば、ブレードで切粉をサンプリングすることが選択できる)し、削りの深さが第1の負極フィルム層と第2の負極フィルム層との境界区域を超えていない。
(2)次に、第1の負極活性材料をサンプリングし、負極フィルム層の冷間プレス過程において第1の負極フィルム層と第2の負極フィルム層との間の境界区域に融合層が存在する(即ち、融合層に第1の活性材料と第2の活性材料とが同時に存在する)可能性がある。測定の正確性のために、第1の負極活性材料をサンプリングする際、融合層を切削した後、第1の負極活性材料から切粉をサンプリングすることができる。
(3)上記で得られた第1の負極活性材料及び第2の負極活性材料をそれぞれ脱イオン水中に置き、第1の負極活性材料及び第2の負極活性材料を吸引濾過し、乾燥する。また、乾燥後の各負極活性材料を一定の温度及び時間(例えば、400℃、2時間)で焼成し、接着剤及び導電性カーボンを除去し、第1の負極活性材料及び第2の負極活性材料の測定試料が得られる。
[正極シート]
LiaNibCocMdOeAf 式1
本願において、上記各材料の改質化合物は、材料に対しドープ改質及び/又は表面被覆の改質を行ったものであってもよい。
[電解質]
[セパレータ]
二次電池の調製方法
1)負極集電体の少なくとも一方の表面に、第1の負極活性材料を含む第1の負極フィルム層を形成する工程と、
2)前記第1の負極フィルム層に第2の負極活性材料を含む第2の負極フィルム層を形成する工程と、を含み、
ここで、前記第1の負極活性材料及び前記第2の負極活性材料が、いずれも人造黒鉛を含み、
前記第1の負極活性材料が一次粒子を含み、且つ第1の負極活性材料における前記一次粒子の数量比率がA≧50%である、二次電池の調製方法を提供している。
装置
実施例
一 二次電池の調製
実施例1
1)正極シートの調製
2)負極シートの調製
3)セパレータ
4)電解液の調製
5)電池の作製
二 性能パラメータの測定方法
1 急速充電性能の測定
2 サイクル性能測定
三 各実施例、比較例の測定結果
Claims (15)
- 二次電池であって、
負極集電体と、第1の負極フィルム層及び第2の負極フィルム層を含む負極フィルム層とを含む負極シートを備え、
前記第1の負極フィルム層は、負極集電体の少なくとも一方の表面に設けられ、且つ第1の負極活性材料を含み、
前記第2の負極フィルム層は、第1の負極フィルム層に設けられ、且つ第2の負極活性材料を含み、
前記第1の負極活性材料と前記第2の負極活性材料は、いずれも人造黒鉛を含み、
前記第1の負極活性材料は一次粒子を含み、且つ前記第1の負極活性材料における前記一次粒子の数量比率AがA≧50%を満たす、二次電池。 - 前記Aは、A≧70%、好ましくは80%≦A≦100%である、請求項1に記載の二次電池。
- 前記第2の負極活性材料は、二次粒子を含み、且つ前記第2の負極活性材料における前記二次粒子の数量比率Bが、B≧30%、好ましくはB≧50%を満たす、請求項1又は2に記載の二次電池。
- 前記第1の負極活性材料の体積分布粒径Dv10が、第2の負極活性材料の体積分布粒径Dv10よりも小さい、請求項1~3のいずれか1項に記載の二次電池。
- 前記第1の負極活性材料の体積分布粒径Dv10が、3μm~8μm、好ましくは4μm~7μmであり、及び/又は、
前記第2の負極活性材料の体積分布粒径Dv10が、5μm~11μm、好ましくは6μm~10μmである、請求項1~4のいずれか1項に記載の二次電池。 - 前記第1の負極活性材料のタップ密度が、前記第2の負極活性材料のタップ密度よりも大きい、請求項1~5のいずれか1項に記載の二次電池。
- 前記第1の負極活性材料のタップ密度が、0.8g/cm3~1.3g/cm3、好ましくは0.95g/cm3~1.15g/cm3であり、及び/又は、
前記第2の負極活性材料のタップ密度が、0.7g/cm3~1.2g/cm3、好ましくは0.85g/cm3~1.05g/cm3である、請求項1~6のいずれか1項に記載の二次電池。 - 前記第1の負極活性材料の体積分布粒径Dv50が、第2の負極活性材料の体積分布粒径Dv50よりも大きい、請求項1~7のいずれか1項に記載の二次電池。
- 前記第1の負極活性材料の体積分布粒径Dv50が、13μm~21μm、好ましくは15μm~19μmであり、及び/又は、
前記第2の負極活性材料の体積分布粒径Dv50が、11μm~19μm、好ましくは13μm~17μmである、請求項1~8のいずれか1項に記載の二次電池。 - 前記第1の負極活性材料の黒鉛化度が、第2の負極活性材料の黒鉛化度よりも大きい、請求項1~9のいずれか1項に記載の二次電池。
- 前記第1の負極活性材料の黒鉛化度が、92%~97%、好ましくは93%~96%であり、及び/又は、
前記第2の負極活性材料の黒鉛化度が、90%~95%、好ましくは92%~94%である、請求項1~10のいずれか1項に記載の二次電池。 - 前記第1の負極活性材料の比表面積(SSA)が、1.6m2/g~2.6m2/g、好ましくは1.8m2/g~2.3m2/gであり、及び/又は、
前記第2の負極活性材料の比表面積(SSA)が、0.7m2/g~1.5m2/g、好ましくは0.8m2/g~1.3m2/gである、請求項1~11のいずれか一項に記載の二次電池。 - 前記第1の負極活性材料における人造黒鉛の質量比率が、≧50%、好ましくは60%~100%であり、及び/又は、
前記第2の負極活性材料における人造黒鉛の質量比率が、≧80%、好ましくは90%~100%である、請求項1~12のいずれか1項に記載の二次電池。 - 前記二次電池の負極シートを調製する二次電池の調製方法であって、
1)負極集電体の少なくとも一方の表面に、第1の負極活性材料を含む第1の負極フィルム層を形成する工程と、
2)前記第1の負極フィルム層に第2の負極活性材料を含む第2の負極フィルム層を形成する工程と、を含み、
前記第1の負極活性材料及び前記第2の負極活性材料は、いずれも人造黒鉛を含み、
前記第1の負極活性材料は一次粒子を含み、且つ第1の負極活性材料における前記一次粒子の数量比率がA≧50%である、二次電池の調製方法。 - 請求項1~13のいずれか一項に記載の二次電池又は請求項14に記載の方法により調製された二次電池を含むことを特徴とする、装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2020/088300 WO2021217586A1 (zh) | 2020-04-30 | 2020-04-30 | 二次电池及其制备方法、含有该二次电池的装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2023504473A true JP2023504473A (ja) | 2023-02-03 |
JPWO2021217586A5 JPWO2021217586A5 (ja) | 2023-05-25 |
JP7496872B2 JP7496872B2 (ja) | 2024-06-07 |
Family
ID=78331678
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2022532139A Active JP7496872B2 (ja) | 2020-04-30 | 2020-04-30 | 二次電池及びその調製方法、当該二次電池を含む装置 |
Country Status (9)
Country | Link |
---|---|
US (1) | US11901546B2 (ja) |
EP (1) | EP3958353B1 (ja) |
JP (1) | JP7496872B2 (ja) |
KR (1) | KR102599823B1 (ja) |
CN (1) | CN113875047B (ja) |
ES (1) | ES2953953T3 (ja) |
HU (1) | HUE062604T2 (ja) |
PL (1) | PL3958353T3 (ja) |
WO (1) | WO2021217586A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115832239A (zh) * | 2022-05-30 | 2023-03-21 | 宁德时代新能源科技股份有限公司 | 负极极片及其制备方法和二次电池、电池包、用电装置 |
WO2024108571A1 (zh) * | 2022-11-25 | 2024-05-30 | 宁德时代新能源科技股份有限公司 | 二次电池及用电装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012086826A1 (ja) * | 2010-12-21 | 2012-06-28 | Jfeケミカル株式会社 | リチウムイオン二次電池用負極材料、リチウムイオン二次電池負極およびリチウムイオン二次電池 |
JP2013008526A (ja) * | 2011-06-23 | 2013-01-10 | Hitachi Chem Co Ltd | リチウムイオン二次電池用負極材、リチウムイオン二次電池用負極及びリチウムイオン二次電池 |
JP2015511389A (ja) * | 2013-01-25 | 2015-04-16 | エルジー・ケム・リミテッド | リチウム二次電池用負極及びこれを含むリチウム二次電池 |
JP2018088406A (ja) * | 2016-11-22 | 2018-06-07 | 三菱ケミカル株式会社 | 非水系二次電池用負極材、非水系二次電池用負極及び非水系二次電池 |
JP2019508839A (ja) * | 2016-07-04 | 2019-03-28 | エルジー・ケム・リミテッド | 二次電池用負極 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4752574B2 (ja) * | 2006-03-30 | 2011-08-17 | ソニー株式会社 | 負極及び二次電池 |
PL2797142T3 (pl) * | 2013-01-25 | 2019-07-31 | Lg Chem, Ltd. | Anoda do litowej baterii akumulatorowej i litowa bateria akumulatorowa ją obejmująca |
JP6340865B2 (ja) * | 2013-03-26 | 2018-06-13 | 三菱ケミカル株式会社 | 非水系二次電池用負極材料及びその製造方法、非水系二次電池負極並びに非水系二次電池 |
CN105470460B (zh) * | 2015-03-12 | 2019-02-01 | 万向一二三股份公司 | 一种锂离子电池负极片及其制作方法 |
KR102095008B1 (ko) * | 2016-09-13 | 2020-03-30 | 주식회사 엘지화학 | 음극, 이를 포함하는 이차전지, 전지 모듈 및 전지 팩 |
KR102467348B1 (ko) * | 2017-05-19 | 2022-11-16 | 주식회사 엘지에너지솔루션 | 리튬 이차전지용 음극 활물질, 이를 포함하는 리튬 이차전지용 음극 및 리튬 이차전지 |
KR102272820B1 (ko) * | 2018-04-17 | 2021-07-05 | 삼성에스디아이 주식회사 | 리튬 이차 전지용 음극 및 이를 포함하는 리튬 이차 전지 |
CN108807849B (zh) * | 2018-05-16 | 2019-11-15 | 宁德时代新能源科技股份有限公司 | 负极极片及含有它的二次电池 |
CN108807996A (zh) * | 2018-08-17 | 2018-11-13 | 东莞市凯金新能源科技股份有限公司 | 一种高倍率快充石墨负极材料的制法及材料 |
CN111082129B (zh) * | 2019-12-24 | 2021-01-12 | 东莞新能源科技有限公司 | 电化学装置和电子装置 |
-
2020
- 2020-04-30 KR KR1020227018610A patent/KR102599823B1/ko active IP Right Grant
- 2020-04-30 HU HUE20933636A patent/HUE062604T2/hu unknown
- 2020-04-30 ES ES20933636T patent/ES2953953T3/es active Active
- 2020-04-30 EP EP20933636.1A patent/EP3958353B1/en active Active
- 2020-04-30 WO PCT/CN2020/088300 patent/WO2021217586A1/zh unknown
- 2020-04-30 CN CN202080006114.0A patent/CN113875047B/zh active Active
- 2020-04-30 JP JP2022532139A patent/JP7496872B2/ja active Active
- 2020-04-30 PL PL20933636.1T patent/PL3958353T3/pl unknown
-
2021
- 2021-12-10 US US17/547,291 patent/US11901546B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012086826A1 (ja) * | 2010-12-21 | 2012-06-28 | Jfeケミカル株式会社 | リチウムイオン二次電池用負極材料、リチウムイオン二次電池負極およびリチウムイオン二次電池 |
JP2013008526A (ja) * | 2011-06-23 | 2013-01-10 | Hitachi Chem Co Ltd | リチウムイオン二次電池用負極材、リチウムイオン二次電池用負極及びリチウムイオン二次電池 |
JP2015511389A (ja) * | 2013-01-25 | 2015-04-16 | エルジー・ケム・リミテッド | リチウム二次電池用負極及びこれを含むリチウム二次電池 |
JP2019508839A (ja) * | 2016-07-04 | 2019-03-28 | エルジー・ケム・リミテッド | 二次電池用負極 |
JP2018088406A (ja) * | 2016-11-22 | 2018-06-07 | 三菱ケミカル株式会社 | 非水系二次電池用負極材、非水系二次電池用負極及び非水系二次電池 |
Also Published As
Publication number | Publication date |
---|---|
CN113875047A (zh) | 2021-12-31 |
US20220102701A1 (en) | 2022-03-31 |
PL3958353T3 (pl) | 2023-10-23 |
WO2021217586A1 (zh) | 2021-11-04 |
CN113875047B (zh) | 2023-11-21 |
EP3958353A4 (en) | 2022-07-13 |
EP3958353A1 (en) | 2022-02-23 |
JP7496872B2 (ja) | 2024-06-07 |
KR20220097940A (ko) | 2022-07-08 |
US11901546B2 (en) | 2024-02-13 |
KR102599823B1 (ko) | 2023-11-07 |
ES2953953T3 (es) | 2023-11-17 |
EP3958353B1 (en) | 2023-06-28 |
HUE062604T2 (hu) | 2023-11-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3968407B1 (en) | Secondary battery, process for preparing same, and apparatus comprising secondary battery | |
JP7222147B2 (ja) | 二次電池及びそれを備える装置 | |
US12027695B2 (en) | Secondary battery, process for preparing the same and apparatus containing the secondary battery | |
JP7412574B2 (ja) | 二次電池、その製造方法、それに関連する電池モジュール、電池パック及び装置 | |
JP7179196B2 (ja) | 二次電池、その製造方法及び当該二次電池を備える装置 | |
US11901546B2 (en) | Secondary battery, process for preparing the same and apparatus containing the secondary battery | |
JP2023504478A (ja) | 二次電池及び当該二次電池を備える装置 | |
US12034153B2 (en) | Secondary battery, process for preparing the same and apparatus containing the secondary battery | |
US11322739B2 (en) | Secondary battery, method for manufacturing the same, and apparatus containing the same | |
JP7267509B2 (ja) | 二次電池及び二次電池を含む装置 | |
WO2021196141A1 (zh) | 二次电池及含有该二次电池的装置 | |
CN115810717A (zh) | 负极极片及其制备方法、二次电池、电池模块、电池包和用电装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20220530 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230517 |
|
A871 | Explanation of circumstances concerning accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A871 Effective date: 20230517 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20230524 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230605 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230904 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20231120 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20240215 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20240520 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20240528 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7496872 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |