JP7386987B2 - 負極の前リチウム化方法 - Google Patents
負極の前リチウム化方法 Download PDFInfo
- Publication number
- JP7386987B2 JP7386987B2 JP2022523673A JP2022523673A JP7386987B2 JP 7386987 B2 JP7386987 B2 JP 7386987B2 JP 2022523673 A JP2022523673 A JP 2022523673A JP 2022523673 A JP2022523673 A JP 2022523673A JP 7386987 B2 JP7386987 B2 JP 7386987B2
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- active material
- lithiation
- prelithiation
- prelithiated
- 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.)
- Active
Links
- 238000006138 lithiation reaction Methods 0.000 title claims description 46
- 238000000034 method Methods 0.000 title claims description 42
- 229910052744 lithium Inorganic materials 0.000 claims description 43
- -1 organic carbonate compound Chemical group 0.000 claims description 31
- 238000007600 charging Methods 0.000 claims description 29
- 239000007773 negative electrode material Substances 0.000 claims description 26
- SBLRHMKNNHXPHG-UHFFFAOYSA-N 4-fluoro-1,3-dioxolan-2-one Chemical group FC1COC(=O)O1 SBLRHMKNNHXPHG-UHFFFAOYSA-N 0.000 claims description 21
- 125000005843 halogen group Chemical group 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 11
- 230000032683 aging Effects 0.000 claims description 9
- 239000002388 carbon-based active material Substances 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 8
- 239000002409 silicon-based active material Substances 0.000 claims description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 150000005676 cyclic carbonates Chemical class 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims 1
- 229910052808 lithium carbonate Inorganic materials 0.000 claims 1
- 239000000243 solution Substances 0.000 description 34
- 239000012528 membrane Substances 0.000 description 19
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 17
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 17
- 239000003960 organic solvent Substances 0.000 description 17
- 238000000926 separation method Methods 0.000 description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 16
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 13
- 239000011267 electrode slurry Substances 0.000 description 13
- 229910001416 lithium ion Inorganic materials 0.000 description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 11
- 239000003792 electrolyte Substances 0.000 description 11
- 229910052782 aluminium Inorganic materials 0.000 description 10
- 239000007774 positive electrode material Substances 0.000 description 10
- 239000004020 conductor Substances 0.000 description 9
- 238000007599 discharging Methods 0.000 description 9
- 229910003002 lithium salt Inorganic materials 0.000 description 9
- 159000000002 lithium salts Chemical class 0.000 description 9
- 230000003647 oxidation Effects 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 9
- 230000027756 respiratory electron transport chain Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 description 7
- 229910013870 LiPF 6 Inorganic materials 0.000 description 7
- 239000011230 binding agent Substances 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- 238000006479 redox reaction Methods 0.000 description 7
- 239000010936 titanium Substances 0.000 description 7
- 229910052719 titanium Inorganic materials 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 description 6
- 239000001569 carbon dioxide Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 239000011149 active material Substances 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- 229920000098 polyolefin Polymers 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910052723 transition metal Inorganic materials 0.000 description 4
- 150000003624 transition metals Chemical class 0.000 description 4
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910021383 artificial graphite Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010325 electrochemical charging Methods 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 229910021382 natural graphite Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920006254 polymer film Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000007086 side reaction Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000007784 solid electrolyte Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 description 3
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 2
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 229910013063 LiBF 4 Inorganic materials 0.000 description 2
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- VUPKGFBOKBGHFZ-UHFFFAOYSA-N dipropyl carbonate Chemical compound CCCOC(=O)OCCC VUPKGFBOKBGHFZ-UHFFFAOYSA-N 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 150000002367 halogens Chemical group 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 239000003273 ketjen black Substances 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 1
- BJWMSGRKJIOCNR-UHFFFAOYSA-N 4-ethenyl-1,3-dioxolan-2-one Chemical compound C=CC1COC(=O)O1 BJWMSGRKJIOCNR-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910000925 Cd alloy Inorganic materials 0.000 description 1
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- 229910010238 LiAlCl 4 Inorganic materials 0.000 description 1
- 229910015015 LiAsF 6 Inorganic materials 0.000 description 1
- 229910015044 LiB Inorganic materials 0.000 description 1
- 229910013188 LiBOB Inorganic materials 0.000 description 1
- 229910013684 LiClO 4 Inorganic materials 0.000 description 1
- 229910013716 LiNi Inorganic materials 0.000 description 1
- 229910012513 LiSbF 6 Inorganic materials 0.000 description 1
- RJUFJBKOKNCXHH-UHFFFAOYSA-N Methyl propionate Chemical compound CCC(=O)OC RJUFJBKOKNCXHH-UHFFFAOYSA-N 0.000 description 1
- 229910015207 Ni1/3Co1/3Mn1/3O Inorganic materials 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- BEKPOUATRPPTLV-UHFFFAOYSA-N [Li].BCl Chemical compound [Li].BCl BEKPOUATRPPTLV-UHFFFAOYSA-N 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000006231 channel black Substances 0.000 description 1
- 238000010280 constant potential charging Methods 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000006232 furnace black Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010220 ion permeability Effects 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 238000007561 laser diffraction method Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 229910003473 lithium bis(trifluoromethanesulfonyl)imide Inorganic materials 0.000 description 1
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 description 1
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Inorganic materials [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 description 1
- 229910002102 lithium manganese oxide Inorganic materials 0.000 description 1
- 229910021437 lithium-transition metal oxide Inorganic materials 0.000 description 1
- 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 1
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 description 1
- VROAXDSNYPAOBJ-UHFFFAOYSA-N lithium;oxido(oxo)nickel Chemical group [Li+].[O-][Ni]=O VROAXDSNYPAOBJ-UHFFFAOYSA-N 0.000 description 1
- VLXXBCXTUVRROQ-UHFFFAOYSA-N lithium;oxido-oxo-(oxomanganiooxy)manganese Chemical group [Li+].[O-][Mn](=O)O[Mn]=O VLXXBCXTUVRROQ-UHFFFAOYSA-N 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- PQIOSYKVBBWRRI-UHFFFAOYSA-N methylphosphonyl difluoride Chemical group CP(F)(F)=O PQIOSYKVBBWRRI-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910021384 soft carbon Inorganic materials 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229920005608 sulfonated EPDM Polymers 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000006234 thermal black Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011787 zinc oxide Substances 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
- H01M4/04—Processes of manufacture in general
- H01M4/0438—Processes of manufacture in general by electrochemical processing
- H01M4/044—Activating, forming or electrochemical attack of the supporting material
- H01M4/0445—Forming after manufacture of the electrode, e.g. first charge, cycling
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0561—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
- H01M10/0562—Solid materials
-
- 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
- H01M4/04—Processes of manufacture in general
- H01M4/0438—Processes of manufacture in general by electrochemical processing
- H01M4/0459—Electrochemical doping, intercalation, occlusion or alloying
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
-
- 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
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/386—Silicon or alloys based on silicon
-
- 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
-
- 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
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0068—Solid electrolytes inorganic
- H01M2300/008—Halides
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
図1を参照すると、本発明に係る負極の前リチウム化方法は、負極集電体上に負極活物質を含む負極活物質層を形成して負極を製造するステップ(S10)と、上記負極およびリチウム金属対極を含む前リチウム化セルを製造し、上記前リチウム化セルを前リチウム化溶液に含浸させるステップ(S20)と、上記前リチウム化セルを定電圧で充電して負極を前リチウム化するステップ(S30)とを含み、上記前リチウム化溶液は置換された有機カーボネート化合物を3~30体積%含む。
本発明に係る負極の前リチウム化方法において、負極は、負極集電体上に負極活物質を含む負極スラリーを塗布して負極活物質層を形成することによって製造され得る。このとき、負極スラリーは導電材およびバインダーなどをさらに含み得る。このとき、負極活物質層は、負極集電体の両面に形成され得る。
負極が製造されると、それを前リチウム化する。具体的には、負極およびリチウム金属対極を含む前リチウム化セルを製造し、上記前リチウム化セルを前リチウム化溶液に含浸させた後に、上記前リチウム化セルを電気化学充填して負極を前リチウム化する。このとき、前リチウム化セルとは、負極とリチウム金属対極が一対となって電池セル機能をする一つの単位を意味する。
また、本発明は、上述した負極の前リチウム化方法を含む二次電池の製造方法を提供する。
また、本発明は、上述したような負極の前リチウム化方法に従って前リチウム化された負極を提供する。
<前リチウム化溶液の製造>
前リチウム化溶液をエチレンカーボネート(EC)、フルオロエチレンカーボネート(FEC)及びエチルメチルカーボネート(EMC)を1:2:7の体積比で混合した有機溶媒にリチウム塩としてのLiPF6を1M濃度で添加した後、24時間攪拌して溶解させて製造した。
負極活物質として黒鉛85重量%及びSiO9.5重量%、導電材としてDenka Black1.4重量%、バインダーとしてSBR3.0重量%、増粘剤としてCMC1.1重量%を水に添加して負極スラリーを製造した。
上記で準備した電解液および負極を用いてコイン型ハーフセルを製造した。具体的に、負極およびリチウム金属対極の間に分離膜を介在してコイン型ハーフセルを製造し、上記コイン型ハーフセルより先立って説明したとおりの前リチウム化溶液を注入した。
上記コイン型ハーフセルを電気化学充電して前リチウム化を行った。具体的に、-0.2Vの定電圧(constant voltage、CV)をハーフセルに印加して充電しながら、全体理論充電容量の10%に該当する容量の程度が充電されるようにした。前リチウム化が完了されると、負極をハーフセルから分離した後、洗浄および乾燥した。このとき、負極をハーフセルから分離する前にエージングを行うことができる。
エチレンカーボネート(EC)、フルオロエチレンカーボネート(FEC)及びエチルメチルカーボネート(EMC)を2:1:7の体積比で混合した有機溶媒にリチウム塩としてLiPF6を1M濃度で添加した後、24時間を攪拌して製造した前リチウム化溶液を用いたことを除いては、実施例1と同じく負極を前リチウム化した。
エチレンカーボネート(EC)、フルオロエチレンカーボネート(FEC)及びエチルメチルカーボネート(EMC)を2.5:0.5:7の体積比で混合した有機溶媒にリチウム塩としてLiPF6を1M濃度で添加した後、24時間を攪拌して製造した前リチウム化溶液を用いたことを除いては、実施例1と同じく負極を前リチウム化した。
前リチウム化の過程において、コイン型ハーフセルを1.32Aの定電流で充電したことを除いては、実施例2と同じく負極を前リチウム化した。
エチレンカーボネート(EC)及びエチルメチルカーボネート(EMC)を3:7の体積比で混合した有機溶媒にリチウム塩としてLiPF6を1M濃度で添加し、添加剤としてビニレンカーボネート(VC)及びフルオロエチレンカーボネート(FEC)を有機溶媒の総重量に対してそれぞれ1.5重量%および2.0重量%添加したことを除いては、比較例1と同じく(定電流充填)負極を前リチウム化した。
負極活物質として黒鉛85重量%及びSiO9.5重量%、導電材としてDenka Black1.4重量%、バインダーとしてSBR3.0重量%、増粘剤としてCMC1.1重量%を水に添加して負極スラリーを製造した。
<クーロン効率のテスト>
リチウム金属対極と負極との間にポリオレフィン分離膜を介在した後、電解液を注入してコイン形態のハーフセルを準備した。電解液としては、エチレンカーボネート(EC)とエチルメチルカーボネート(EMC)を3:7の体積比で混合した有機溶媒にリチウム塩として1M LiPF6が溶解され、添加剤としてビニレンカーボネート(VC)およびフルオロエチレンカーボネート(FEC)が添加されたものを使用した。
クーロン効率(%)={(放電容量)/(充電容量)}×100
正極及び上記実施例及び比較例で製造された負極を準備し、正極と負極との間にポリオレフィン分離膜を介在した後、電解液を注入してコイン形態の電池セルを準備した。ここで正極は、アルミニウム素材の正極集電体上に正極活物質としてLiCoO2を含む正極スラリーを塗布して製造した。また、電解液としては、エチレンカーボネート(EC)とエチルメチルカーボネート(EMC)を3:7の体積比で混合した有機溶媒にリチウム塩として1M LiPF6が溶解され、添加剤としてビニレンカーボネート(VC)及びフルオロエチレン カーボネート(FEC)が添加されたものを使用した。
容量維持率(%)={(100サイクル目の放電容量)/(1サイクル目の放電容量)}×100
上記で前リチウム化された電極をDMCに1分以下洗浄し、X線光電子分光法(X-ray photoelectron spectroscopy、XPS)実験を行った。該当実験において、LiF成分はF1sで685.2eV領域でのピーク強度(peak intensity)を通じて含有量値を得た。Li2CO3成分の含有量は、O1sでCO3のピークが現れる領域である531.7eVでのピーク強度を通じて得た。全体元素のピーク強度で当該ピーク強度が占める割合を通じてSEI内の特定成分の含有量値を求めた。
Claims (13)
- 負極集電体上に負極活物質を含む負極活物質層を形成して負極を製造するステップと、
前記負極およびリチウム金属対極を含む前リチウム化セルを製造し、前記前リチウム化セルを前リチウム化溶液に含浸させるステップと、
前記前リチウム化セルを定電圧で充電して負極を前リチウム化するステップと、を含み、
前記前リチウム化溶液は、ハロゲン原子で置換された有機カーボネート化合物を3~30体積%含み、
前記負極を前リチウム化するステップは、前記前リチウム化溶液に含浸させた前記前リチウム化セルに定電圧を印加することにより充電を開始して一定容量まで充電させて行われ、
前記負極活物質は、炭素系活物質およびシリコン系活物質を含む、負極の前リチウム化方法。 - 前記ハロゲン原子で置換された有機カーボネート化合物は、下記化学式1で表わされる環状カーボネートである、請求項1に記載の負極の前リチウム化方法。
- 前記ハロゲン原子で置換された有機カーボネート化合物はフルオロエチレンカーボネートである、請求項1に記載の負極の前リチウム化方法。
- 前記前リチウム化溶液は、ハロゲン原子で置換された有機カーボネート化合物を5~20体積%含む、請求項1に記載の負極の前リチウム化方法。
- 前記負極を前リチウム化するステップにおいて、
前記負極は、0.1~-1V(vs.Li/Li+)の定電圧で充電される、請求項1に記載の負極の前リチウム化方法。 - 前記負極を前リチウム化するステップは、
前記前リチウム化セルを理論充電容量の5~30%になるように充電させて行われる、請求項1に記載の負極の前リチウム化方法。 - 前リチウム化された負極をエージングするステップをさらに含む、請求項1に記載の負極の前リチウム化方法。
- エージングされた負極を洗浄および乾燥するステップをさらに含む、請求項7に記載の負極の前リチウム化方法。
- 前リチウム化された負極は、表面にSEI被膜が形成される、請求項1に記載の負極の前リチウム化方法。
- 前記SEI被膜は、LiF及びLi2CO3を含む、請求項9に記載の負極の前リチウム化方法。
- 前記SEI被膜に含まれるLiFの含有量は10~20重量%であり、Li2CO3の含有量は20~40重量%である、請求項10に記載の負極の前リチウム化方法。
- 請求項1から11の何れか一項記載の負極の前リチウム化方法を含む、二次電池の製造方法。
- 負極集電体上に負極活物質を含む負極活物質層が形成された負極であって、
前記負極活物質は、炭素系活物質およびシリコン系活物質を含み、
表面にSEI被膜が形成されており、
前記SEI被膜がLiF及びLi 2 CO 3 を含み、
前記SEI被膜に含まれるLiFの含量は、10~20重量%であり、Li2CO3の含量は20~40重量%である、負極。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2020-0109040 | 2020-08-28 | ||
KR1020200109040A KR20220028269A (ko) | 2020-08-28 | 2020-08-28 | 음극의 전리튬화 방법 |
PCT/KR2021/011473 WO2022045809A1 (ko) | 2020-08-28 | 2021-08-26 | 음극의 전리튬화 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022552894A JP2022552894A (ja) | 2022-12-20 |
JP7386987B2 true JP7386987B2 (ja) | 2023-11-27 |
Family
ID=80355469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2022523673A Active JP7386987B2 (ja) | 2020-08-28 | 2021-08-26 | 負極の前リチウム化方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20220393145A1 (ja) |
EP (1) | EP4037021A4 (ja) |
JP (1) | JP7386987B2 (ja) |
KR (1) | KR20220028269A (ja) |
CN (1) | CN114600273B (ja) |
WO (1) | WO2022045809A1 (ja) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010160982A (ja) | 2009-01-08 | 2010-07-22 | Nissan Motor Co Ltd | リチウムイオン二次電池用負極およびリチウムイオン二次電池 |
JP2014017209A (ja) | 2012-07-11 | 2014-01-30 | Mitsubishi Paper Mills Ltd | リチウムイオン二次電池の製造方法 |
WO2018088311A1 (ja) | 2016-11-14 | 2018-05-17 | マクセルホールディングス株式会社 | 非水電解液系電気化学素子用負極、その製造方法、リチウムイオン二次電池およびその製造方法 |
WO2019088139A1 (ja) | 2017-11-02 | 2019-05-09 | 国立大学法人東京大学 | 二次電池用負極及び二次電池並びにそれらの製造方法 |
WO2019194100A1 (ja) | 2018-04-03 | 2019-10-10 | 株式会社村田製作所 | リチウムポリマー電池 |
JP2020027737A (ja) | 2018-08-10 | 2020-02-20 | 株式会社豊田自動織機 | リチウムイオン二次電池 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10573879B2 (en) * | 2014-02-18 | 2020-02-25 | GM Global Technology Operations LLC | Electrolytes and methods for using the same |
KR102402110B1 (ko) * | 2017-09-14 | 2022-05-26 | 주식회사 엘지에너지솔루션 | 이차전지용 음극의 전리튬화 방법 |
KR20190083304A (ko) | 2018-01-03 | 2019-07-11 | 주식회사 엘지화학 | 음극의 전리튬화 방법 및 이로부터 제조된 음극 |
CN109004182A (zh) * | 2018-09-03 | 2018-12-14 | 北京乐华锂能科技有限公司 | 一种锂离子电池硅基负极极片预锂化的方法 |
PL3793005T3 (pl) * | 2018-09-12 | 2023-03-20 | Lg Energy Solution, Ltd. | Sposób wytwarzania elektrody ujemnej dla akumulatora litowego i akumulator litowy |
KR102598189B1 (ko) * | 2018-10-26 | 2023-11-03 | 주식회사 엘지에너지솔루션 | 리튬 이차전지용 음극의 제조방법 |
KR20200053300A (ko) * | 2018-11-08 | 2020-05-18 | 주식회사 포스코 | 리튬 이차 전지용 음극, 이의 제조 방법 및 이를 이용한 리튬 이차 전지 |
WO2020124328A1 (zh) * | 2018-12-17 | 2020-06-25 | 深圳先进技术研究院 | 预嵌锂负极的制备方法及制备得到的预嵌锂负极、储能器件、储能系统及用电设备 |
KR102586822B1 (ko) * | 2019-01-25 | 2023-10-11 | 주식회사 엘지에너지솔루션 | 이차전지용 음극의 제조방법 |
KR20200109040A (ko) | 2019-03-12 | 2020-09-22 | 주식회사 엘지화학 | 쇼트측정기 및 상기 쇼트측정기를 이용한 전극탭의 변형 발생 검사방법 |
-
2020
- 2020-08-28 KR KR1020200109040A patent/KR20220028269A/ko active Search and Examination
-
2021
- 2021-08-26 WO PCT/KR2021/011473 patent/WO2022045809A1/ko unknown
- 2021-08-26 US US17/772,428 patent/US20220393145A1/en active Pending
- 2021-08-26 JP JP2022523673A patent/JP7386987B2/ja active Active
- 2021-08-26 CN CN202180005946.5A patent/CN114600273B/zh active Active
- 2021-08-26 EP EP21862105.0A patent/EP4037021A4/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010160982A (ja) | 2009-01-08 | 2010-07-22 | Nissan Motor Co Ltd | リチウムイオン二次電池用負極およびリチウムイオン二次電池 |
JP2014017209A (ja) | 2012-07-11 | 2014-01-30 | Mitsubishi Paper Mills Ltd | リチウムイオン二次電池の製造方法 |
WO2018088311A1 (ja) | 2016-11-14 | 2018-05-17 | マクセルホールディングス株式会社 | 非水電解液系電気化学素子用負極、その製造方法、リチウムイオン二次電池およびその製造方法 |
WO2019088139A1 (ja) | 2017-11-02 | 2019-05-09 | 国立大学法人東京大学 | 二次電池用負極及び二次電池並びにそれらの製造方法 |
WO2019194100A1 (ja) | 2018-04-03 | 2019-10-10 | 株式会社村田製作所 | リチウムポリマー電池 |
JP2020027737A (ja) | 2018-08-10 | 2020-02-20 | 株式会社豊田自動織機 | リチウムイオン二次電池 |
Also Published As
Publication number | Publication date |
---|---|
CN114600273A (zh) | 2022-06-07 |
JP2022552894A (ja) | 2022-12-20 |
KR20220028269A (ko) | 2022-03-08 |
US20220393145A1 (en) | 2022-12-08 |
WO2022045809A1 (ko) | 2022-03-03 |
CN114600273B (zh) | 2024-03-26 |
EP4037021A4 (en) | 2023-12-06 |
EP4037021A1 (en) | 2022-08-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7232353B2 (ja) | 再充電可能なバッテリーセル | |
TWI614931B (zh) | 鋰二次電池之製法 | |
KR20180036600A (ko) | 이중 보호층이 형성된 리튬 이차전지용 음극 및 이를 포함하는 리튬 이차전지 | |
KR20190024761A (ko) | 리튬 이차전지 | |
KR102084245B1 (ko) | 희생 염을 포함하는 양극이 제공된 리튬-이온 배터리의 셀의 형성 방법 | |
CN111886722B (zh) | 预锂化二次电池的负极的方法 | |
KR20060116423A (ko) | 비수 전해질 및 이를 포함하는 리튬 이차전지 | |
KR20130117711A (ko) | 성능이 우수한 리튬 이차전지 | |
JP7266753B2 (ja) | 負極の前リチウム化装置及び負極の前リチウム化方法 | |
KR102542291B1 (ko) | 이차전지용 음극의 제조방법 | |
KR20220061641A (ko) | 음극 및 음극의 전리튬화 방법 | |
CN107925069A (zh) | 二次电池用负极活性材料和包含它的二次电池 | |
EP4117055A1 (en) | Method for manufacturing anode having inorganic coating layer formed thereon | |
US20230066827A1 (en) | Method of manufacturing negative electrode | |
JP7386987B2 (ja) | 負極の前リチウム化方法 | |
KR20220028422A (ko) | 음극의 전리튬화 방법 | |
JP7282266B2 (ja) | 負極の前リチウム化装置及び負極の前リチウム化方法 | |
CN114600272B (zh) | 用于负极的预锂化的设备和用于负极的预锂化的方法 | |
JP2023504159A (ja) | 負極の前リチウム化装置及び負極の前リチウム化方法 | |
CN116404250A (zh) | 锂二次电池用电解液及包括该电解液的锂二次电池 | |
KR20130117608A (ko) | 전극 및 이를 포함하는 이차전지 | |
KR20190064507A (ko) | 리튬 이차전지용 양극 및 그를 포함하는 리튬 이차전지 | |
KR20130117713A (ko) | 과량의 전해액을 포함하는 리튬 이차전지 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20220421 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20230419 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230424 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230719 |
|
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: 20231106 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20231114 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7386987 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |