JPWO2020021749A1 - 二次電池およびその製造方法 - Google Patents
二次電池およびその製造方法 Download PDFInfo
- Publication number
- JPWO2020021749A1 JPWO2020021749A1 JP2020532142A JP2020532142A JPWO2020021749A1 JP WO2020021749 A1 JPWO2020021749 A1 JP WO2020021749A1 JP 2020532142 A JP2020532142 A JP 2020532142A JP 2020532142 A JP2020532142 A JP 2020532142A JP WO2020021749 A1 JPWO2020021749 A1 JP WO2020021749A1
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- film
- secondary battery
- lithium
- active material
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000007774 positive electrode material Substances 0.000 claims abstract description 68
- 150000001875 compounds Chemical class 0.000 claims abstract description 46
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 46
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 43
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000011737 fluorine Substances 0.000 claims abstract description 38
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 38
- 239000003792 electrolyte Substances 0.000 claims abstract description 31
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 27
- 239000002904 solvent Substances 0.000 claims abstract description 27
- 239000011248 coating agent Substances 0.000 claims abstract description 23
- 238000000576 coating method Methods 0.000 claims abstract description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 20
- 239000001301 oxygen Substances 0.000 claims abstract description 20
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 14
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 14
- 239000011203 carbon fibre reinforced carbon Substances 0.000 claims abstract description 6
- CREMABGTGYGIQB-UHFFFAOYSA-N carbon carbon Chemical compound C.C CREMABGTGYGIQB-UHFFFAOYSA-N 0.000 claims abstract description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 34
- 239000002245 particle Substances 0.000 claims description 25
- 239000002131 composite material Substances 0.000 claims description 19
- -1 cyclic acid anhydride Chemical class 0.000 claims description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 16
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 14
- 229910001416 lithium ion Inorganic materials 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 13
- 229910052723 transition metal Inorganic materials 0.000 claims description 12
- RSNHXDVSISOZOB-UHFFFAOYSA-N lithium nickel Chemical compound [Li].[Ni] RSNHXDVSISOZOB-UHFFFAOYSA-N 0.000 claims description 11
- ZGFLMSYIISDCLO-UHFFFAOYSA-N 2-chloro-1h-quinolin-4-one Chemical compound C1=CC=C2NC(Cl)=CC(=O)C2=C1 ZGFLMSYIISDCLO-UHFFFAOYSA-N 0.000 claims description 10
- 238000000354 decomposition reaction Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 8
- 230000002829 reductive effect Effects 0.000 claims description 8
- SBLRHMKNNHXPHG-UHFFFAOYSA-N 4-fluoro-1,3-dioxolan-2-one Chemical compound FC1COC(=O)O1 SBLRHMKNNHXPHG-UHFFFAOYSA-N 0.000 claims description 7
- 229910052748 manganese Inorganic materials 0.000 claims description 7
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- PMGBATZKLCISOD-UHFFFAOYSA-N methyl 3,3,3-trifluoropropanoate Chemical compound COC(=O)CC(F)(F)F PMGBATZKLCISOD-UHFFFAOYSA-N 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000003682 fluorination reaction Methods 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- ZOWSJJBOQDKOHI-UHFFFAOYSA-N 2,2,2-trifluoroethyl acetate Chemical compound CC(=O)OCC(F)(F)F ZOWSJJBOQDKOHI-UHFFFAOYSA-N 0.000 claims 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 abstract 2
- 208000028659 discharge Diseases 0.000 description 39
- 239000010410 layer Substances 0.000 description 34
- 239000011230 binding agent Substances 0.000 description 17
- 239000007773 negative electrode material Substances 0.000 description 17
- 229910052751 metal Inorganic materials 0.000 description 11
- 238000007254 oxidation reaction Methods 0.000 description 11
- 239000011572 manganese Substances 0.000 description 10
- 238000006722 reduction reaction Methods 0.000 description 10
- 229910002804 graphite Inorganic materials 0.000 description 9
- 239000010439 graphite Substances 0.000 description 9
- 230000014759 maintenance of location Effects 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 229910052759 nickel Inorganic materials 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 8
- 238000001228 spectrum Methods 0.000 description 8
- 239000003575 carbonaceous material Substances 0.000 description 7
- 239000011267 electrode slurry Substances 0.000 description 7
- 238000007789 sealing Methods 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 239000002033 PVDF binder Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000006258 conductive agent Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000011255 nonaqueous electrolyte Substances 0.000 description 5
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 4
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 4
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 4
- 239000006230 acetylene black Substances 0.000 description 4
- 239000003125 aqueous solvent Substances 0.000 description 4
- 239000002612 dispersion medium Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 229910000314 transition metal oxide Inorganic materials 0.000 description 4
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 150000001733 carboxylic acid esters Chemical class 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 3
- 235000021317 phosphate Nutrition 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- BJWMSGRKJIOCNR-UHFFFAOYSA-N 4-ethenyl-1,3-dioxolan-2-one Chemical compound C=CC1COC(=O)O1 BJWMSGRKJIOCNR-UHFFFAOYSA-N 0.000 description 2
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910013716 LiNi Inorganic materials 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000006182 cathode active material Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 2
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- GAEKPEKOJKCEMS-UHFFFAOYSA-N gamma-valerolactone Chemical compound CC1CCC(=O)O1 GAEKPEKOJKCEMS-UHFFFAOYSA-N 0.000 description 2
- 229910021385 hard carbon Inorganic materials 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 229910021382 natural graphite Inorganic materials 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 150000003377 silicon compounds Chemical class 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229920003169 water-soluble polymer Polymers 0.000 description 2
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 1
- GEWWCWZGHNIUBW-UHFFFAOYSA-N 1-(4-nitrophenyl)propan-2-one Chemical compound CC(=O)CC1=CC=C([N+]([O-])=O)C=C1 GEWWCWZGHNIUBW-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
- WTUCTMYLCMVYEX-UHFFFAOYSA-N 4,4,4-trifluorobutanoic acid Chemical compound OC(=O)CCC(F)(F)F WTUCTMYLCMVYEX-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 229910015015 LiAsF 6 Inorganic materials 0.000 description 1
- 229910013063 LiBF 4 Inorganic materials 0.000 description 1
- 229910013684 LiClO 4 Inorganic materials 0.000 description 1
- 229910013528 LiN(SO2 CF3)2 Inorganic materials 0.000 description 1
- 229910002991 LiNi0.5Co0.2Mn0.3O2 Inorganic materials 0.000 description 1
- 229910012752 LiNi0.5Mn0.5O2 Inorganic materials 0.000 description 1
- 229910015746 LiNi0.88Co0.09Al0.03O2 Inorganic materials 0.000 description 1
- 229910002995 LiNi0.8Co0.15Al0.05O2 Inorganic materials 0.000 description 1
- 229910015760 LiNi0.8Co0.18Al0.02O2 Inorganic materials 0.000 description 1
- 229910015915 LiNi0.8Co0.2O2 Inorganic materials 0.000 description 1
- 229910001228 Li[Ni1/3Co1/3Mn1/3]O2 (NCM 111) Inorganic materials 0.000 description 1
- RJUFJBKOKNCXHH-UHFFFAOYSA-N Methyl propionate Chemical compound CCC(=O)OC RJUFJBKOKNCXHH-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 229910000676 Si alloy 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
- PFYQFCKUASLJLL-UHFFFAOYSA-N [Co].[Ni].[Li] Chemical compound [Co].[Ni].[Li] PFYQFCKUASLJLL-UHFFFAOYSA-N 0.000 description 1
- SOXUFMZTHZXOGC-UHFFFAOYSA-N [Li].[Mn].[Co].[Ni] Chemical compound [Li].[Mn].[Co].[Ni] SOXUFMZTHZXOGC-UHFFFAOYSA-N 0.000 description 1
- ZYXUQEDFWHDILZ-UHFFFAOYSA-N [Ni].[Mn].[Li] Chemical compound [Ni].[Mn].[Li] ZYXUQEDFWHDILZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 150000004651 carbonic acid esters Chemical class 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 150000005676 cyclic carbonates Chemical class 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 230000010220 ion permeability Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000003273 ketjen black Substances 0.000 description 1
- 239000005001 laminate film Substances 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 229940090181 propyl acetate Drugs 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical class [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- H01M4/36—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
- H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
-
- 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
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0567—Liquid materials characterised by the additives
-
- 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
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0566—Liquid materials
- H01M10/0569—Liquid materials characterised by the solvents
-
- 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
- H01M10/058—Construction or manufacture
-
- 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
- H01M4/0447—Forming after manufacture of the electrode, e.g. first charge, cycling of complete cells or cells stacks
-
- 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
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
-
- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- 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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- 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
- H01M4/5835—Comprising fluorine or fluoride salts
-
- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/628—Inhibitors, e.g. gassing inhibitors, corrosion inhibitors
-
- 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
- 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
- H01M2004/028—Positive 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
- H01M2300/0025—Organic electrolyte
- H01M2300/0028—Organic electrolyte characterised by the solvent
- H01M2300/0034—Fluorinated solvents
-
- 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)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
測定装置: アルバック・ファイ社製PHI5000VersaProbe
使用X線源: 単色Mg−Kα線、200nmΦ、45W、17kV
分析領域: 約200μmΦ
正極は、シート状の正極集電体と、正極集電体の表面に設けられた正極活物質層と、を具備する。正極活物質層は、正極集電体の一方の表面に形成してもよく、両方の表面に形成してもよい。
正極集電体としては、金属箔、金属シートなどが例示できる。正極集電体の材料には、ステンレス鋼、アルミニウム、アルミニウム合金、チタンなどを用いることができる。正極集電体の厚さは、例えば3〜50μmの範囲から選択できる。
正極活物質層が、正極活物質粒子を含む混合物(合材)である場合について説明する。正極活物質層は、必須成分として正極活物質粒子およびバインダーを含み、任意成分として導電剤を含んでもよい。正極活物質層に含まれるバインダー量は、正極活物質100質量部に対して、0.1〜20質量部が好ましく、1〜5質量部がより好ましい。正極活物質層の厚さは、例えば10〜150μmである。
負極は、シート状の負極集電体を備える。負極は、さらに、負極集電体の表面に設けられた負極活物質層を備えていてもよい。負極活物質層は、リチウムを吸蔵および放出可能な負極活物質を含む。負極活物質層は、負極集電体の一方の表面に形成してもよく、両方の表面に形成してもよい。
負極集電体としては、金属箔、金属シート、メッシュ体、パンチングシート、エキスパンドメタルなどが例示できる。負極集電体の材料には、ステンレス鋼、ニッケル、銅、銅合金などを用いることができる。負極集電体の厚さは、例えば3〜50μmの範囲から選択できる。
負極活物質層は、負極活物質、バインダー(結着剤)および分散媒を含む負極スラリーを用いて、正極活物質層の製造に準じた方法で形成できる。負極活物質層は、必要に応じて、導電剤などの任意成分を含んでもよい。負極活物質層に含まれるバインダー量は、負極活物質100質量部に対して、0.1〜20質量部が好ましく、1〜5質量部がより好ましい。負極活物質層の厚さは、例えば10〜150μmである。
セパレータとしては、樹脂製の微多孔フィルム、不織布、織布などが用いられる。樹脂には、ポリエチレン(PE)、ポリプロピレン(PP)などのポリオレフィン、ポリアミド、ポリアミドイミドなどが用いられる。
電解質は、溶媒と、溶媒に溶解する溶質と、被膜形成化合物とを含む。電解質は、公知の添加剤を含有してもよい。被膜形成化合物は、フッ素、および、炭素−炭素間の不飽和結合を有する化合物であればよく、例えばトリフルオロメチルマレイン酸無水物を用いることが好ましい。
以下、本開示に係る二次電池を実施例および比較例に基づいて具体的に説明するが、本開示は以下の実施例に限定されるものではない。
下記の手順により、金属Liを対極とする正極評価用の二次電池を作製した。
(1)正極の作製
正極活物質としてのリチウム含有遷移金属酸化物(LiNi0.60Co0.20Mn0.20O2(NCM))と、導電材としてのアセチレンブラック(AB)と、バインダーとしてのポリフッ化ビニリデン(PVdF)とを、NCM:AB:PVdF=100:1:0.9の質量比で混合し、さらにN−メチル−2−ピロリドン(NMP)を適量加えて撹拌して、正極スラリーを調製した。次に、得られた正極スラリーをアルミニウム箔(正極集電体)の片面に塗布した後、乾燥して、ローラーを用いて正極活物質層の塗膜を圧延した。作製した極板上の単位面積当たりの合材質量を測定したところ、8.0mg/cm2であった。
FECとFMPとを質量比15:85で含む混合液100質量部に、ビニレンカーボネート1質量部、および、トリフルオロメチルマレイン酸無水物1質量部を添加し、非水溶媒を得た。非水溶媒に濃度1.0mol/LでLiPF6を溶解させ、非水電解質を調製した。
上記で得られた正極およびLi金属対極に、それぞれリード線を取り付けた。正極とLi金属対極が、厚み0.015mmのPPおよびPEを含むセパレータを介して対向するように電極体を作製した。電極体を非水電解質とともにアルミニウムラミネートフィルム製の外装体内に封入し、二次電池A1を組み立てた。
二次電池A1を、電池の閉路電圧が2.0V(Li対極基準)に達するまで、13mA/g(正極活物質質量当り)の定電流で過放電処理を行った。
[評価1:内部抵抗測定]
下記の充電1および放電1に示す条件で、初期充放電を行った。充放電は25℃の環境で行った。
(充電1)
電池の閉路電圧が4.2Vに達するまで、80mA/g(正極活物質質量当り)の定電流で充電を行った。その後、電流値が13mA/g(正極活物質質量当り)未満になるまで4.2Vの定電圧で充電を行った。
(放電1)
電池の閉路電圧が2.5Vに達するまで、130mA/g(正極活物質質量当り)の定電流で放電を行った。その後、電池の閉路電圧が2.5Vに達するまで、13mA/g(正極活物質質量当り)の定電流で再度放電を行った。
初期充放電を行った後、下記の充電2および放電2に示す条件で、充放電を複数回繰り返した。充放電は45℃の環境で行った。下記の通り、充電2では、通常よりも高電圧条件で充電を行うことによって、正極の劣化を加速させた。
(充電2)
電池の閉路電圧が4.8Vに達するまで、80mA/g(正極活物質質量当り)の定電流で充電を行った。その後、電流値が13mA/g(正極活物質質量当り)未満になるまで4.8Vの定電圧で充電を行った。
(放電2)
電池の閉路電圧が2.5Vに達するまで、130mA/g(正極活物質質量当り)の定電流で放電を行った。その後、電池の閉路電圧が2.5Vに達するまで、13mA/g(正極活物質質量当り)の定電流で再度放電を行った。
非水電解質の調製において、トリフルオロメチルマレイン酸無水物を添加しなかったことを除いて、実施例1と同様の方法で二次電池B1を組み立てた。また、過放電処理は行わなかった。
組み立て後の二次電池B1について、実施例1と同様に評価した。
非水電解質の調製において、トリフルオロメチルマレイン酸無水物に代えてマレイン酸無水物を1質量部添加した。これ以外については、実施例1と同様の方法で二次電池B2を作製した。過放電処理後の二次電池B2について、実施例1と同様に評価した。
Claims (14)
- 正極活物質を含む正極と、負極と、電解質と、を備え、
電解質は、溶媒と、前記溶媒に溶解したリチウム塩と、被膜形成化合物とを含み、
前記被膜形成化合物は、フッ素、および、炭素−炭素間の不飽和結合を有し、
前記正極活物質の表面の少なくとも一部が、リチウム、酸素、炭素およびフッ素を含む被膜で覆われている、二次電池。 - 前記被膜形成化合物は、環状酸無水物および環状カーボネート化合物の少なくとも1種である、請求項1に記載の二次電池。
- 前記被膜形成化合物は、Li基準で+2.0V以上の電位で還元される化合物である、請求項1または2に記載の二次電池。
- 前記被膜形成化合物は、トリフルオロメチルマレイン酸無水物を含む、請求項1〜3の何れか1項に記載の二次電池。
- 前記フッ素を含む被膜は、前記被膜形成化合物の還元分解生成物を含む、請求項1〜4の何れか1項に記載の二次電池。
- 前記負極は、Li基準で+2.0V〜+3.5Vの範囲にリチウムイオンの放出電位を有するリチウム含有物質を含む、請求項1〜5の何れか1項に記載の二次電池。
- 前記リチウム含有物質は、空間群Pnmaに属し、かつリチウムと遷移金属元素MAとを含むリン酸塩、および、空間群Immmに属し、かつリチウムと遷移金属元素MBとを含む複合酸化物の少なくとも1種を含む、請求項6に記載の二次電池。
- 前記正極活物質は、LiaNibM1 1-bO2で表されるリチウムニッケル複合酸化物を含み、
M1は、Mn、CoおよびAlよりなる群から選択される少なくとも1種であり、
0.95≦a≦1.2、および0.5≦b≦1を満たす、請求項1〜7の何れか1項に記載の二次電池。 - 前記リチウムニッケル複合酸化物が、LiaNibMncCo1-b-cO2で表され、
0.1≦c≦0.4を満たす、請求項8に記載の二次電池。 - 前記リチウムニッケル複合酸化物の粒子の圧縮強度は、250MPa以上1500MPa以下である、請求項8または9に記載の二次電池。
- 前記溶媒は、フッ素、酸素、および炭素を含むフッ素化溶媒を含み、
前記溶媒100質量部に占める前記フッ素化溶媒の割合は、30質量部以上100質量部以下である、請求項1〜10の何れか1項に記載の二次電池。 - 前記フッ素化溶媒が、フルオロエチレンカーボネート、3,3,3−トリフルオロプロピオン酸メチル、および、酢酸2,2,2−トリフルオロエチルよりなる群から選択される少なくとも1種である、請求項11に記載の二次電池。
- 正極と、負極と、電解質と、を備えた二次電池を組み立てる工程と、
フッ素、および、炭素−炭素間の不飽和結合を有する被膜形成化合物とリチウム塩とを含む溶液に前記正極を浸漬し、前記正極の表面を、前記被膜形成化合物の還元分解によって形成された被膜で覆う被膜形成工程と、を含む、二次電池の製造方法。 - 前記溶液は、前記電解質であり、
前記被膜形成工程は、前記二次電池を組み立てる工程の後に、前記正極の電位が前記被膜形成化合物の還元電位以下になるまで前記二次電池を過放電処理する工程を含む、請求項13に記載の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018141732 | 2018-07-27 | ||
JP2018141732 | 2018-07-27 | ||
PCT/JP2019/006654 WO2020021749A1 (ja) | 2018-07-27 | 2019-02-21 | 二次電池およびその製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2020021749A1 true JPWO2020021749A1 (ja) | 2021-08-02 |
JP7361316B2 JP7361316B2 (ja) | 2023-10-16 |
Family
ID=69182294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020532142A Active JP7361316B2 (ja) | 2018-07-27 | 2019-02-21 | 二次電池およびその製造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20210344008A1 (ja) |
JP (1) | JP7361316B2 (ja) |
CN (1) | CN112368871A (ja) |
WO (1) | WO2020021749A1 (ja) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004082046A1 (ja) * | 2003-03-14 | 2004-09-23 | Seimi Chemical Co., Ltd. | リチウム二次電池用正極活物質粉末 |
JP2009164082A (ja) * | 2008-01-10 | 2009-07-23 | Sanyo Electric Co Ltd | 非水電解質二次電池及びその製造方法 |
WO2013005521A1 (ja) * | 2011-07-04 | 2013-01-10 | 日本電気株式会社 | 二次電池 |
WO2013005502A1 (ja) * | 2011-07-04 | 2013-01-10 | 日本電気株式会社 | 二次電池の製造方法 |
JP2013243010A (ja) * | 2012-05-18 | 2013-12-05 | Toyota Motor Corp | 非水二次電池の製造方法 |
JP2015170464A (ja) * | 2014-03-06 | 2015-09-28 | 旭化成株式会社 | 非水電解質二次電池 |
WO2015146685A1 (ja) * | 2014-03-28 | 2015-10-01 | ダイキン工業株式会社 | 電解液、電気化学デバイス、二次電池、及び、モジュール |
JP2015191806A (ja) * | 2014-03-28 | 2015-11-02 | 住友精化株式会社 | 非水電解液用添加剤、非水電解液、及び、蓄電デバイス |
WO2016088837A1 (ja) * | 2014-12-04 | 2016-06-09 | 日本電気株式会社 | リチウム二次電池 |
JP2017059532A (ja) * | 2015-09-15 | 2017-03-23 | 三星電子株式会社Samsung Electronics Co., Ltd. | 二次電池用電解質、及びそれを含む二次電池 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008102493A1 (ja) * | 2007-02-20 | 2008-08-28 | Sanyo Electric Co., Ltd. | 二次電池用非水電解液及び非水電解液二次電池 |
JP2011096551A (ja) * | 2009-10-30 | 2011-05-12 | Sony Corp | 非水電解質電池用正極、非水電解質電池および非水電解質電池の製造方法 |
JP5970752B2 (ja) * | 2011-07-04 | 2016-08-17 | 日本電気株式会社 | 二次電池の製造方法 |
WO2014155990A1 (ja) * | 2013-03-26 | 2014-10-02 | 三洋電機株式会社 | 非水電解質二次電池用正極及び非水電解質二次電池 |
-
2019
- 2019-02-21 WO PCT/JP2019/006654 patent/WO2020021749A1/ja active Application Filing
- 2019-02-21 US US17/259,722 patent/US20210344008A1/en active Pending
- 2019-02-21 CN CN201980044947.3A patent/CN112368871A/zh active Pending
- 2019-02-21 JP JP2020532142A patent/JP7361316B2/ja active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004082046A1 (ja) * | 2003-03-14 | 2004-09-23 | Seimi Chemical Co., Ltd. | リチウム二次電池用正極活物質粉末 |
JP2009164082A (ja) * | 2008-01-10 | 2009-07-23 | Sanyo Electric Co Ltd | 非水電解質二次電池及びその製造方法 |
WO2013005521A1 (ja) * | 2011-07-04 | 2013-01-10 | 日本電気株式会社 | 二次電池 |
WO2013005502A1 (ja) * | 2011-07-04 | 2013-01-10 | 日本電気株式会社 | 二次電池の製造方法 |
JP2013243010A (ja) * | 2012-05-18 | 2013-12-05 | Toyota Motor Corp | 非水二次電池の製造方法 |
JP2015170464A (ja) * | 2014-03-06 | 2015-09-28 | 旭化成株式会社 | 非水電解質二次電池 |
WO2015146685A1 (ja) * | 2014-03-28 | 2015-10-01 | ダイキン工業株式会社 | 電解液、電気化学デバイス、二次電池、及び、モジュール |
JP2015191806A (ja) * | 2014-03-28 | 2015-11-02 | 住友精化株式会社 | 非水電解液用添加剤、非水電解液、及び、蓄電デバイス |
WO2016088837A1 (ja) * | 2014-12-04 | 2016-06-09 | 日本電気株式会社 | リチウム二次電池 |
JP2017059532A (ja) * | 2015-09-15 | 2017-03-23 | 三星電子株式会社Samsung Electronics Co., Ltd. | 二次電池用電解質、及びそれを含む二次電池 |
Also Published As
Publication number | Publication date |
---|---|
JP7361316B2 (ja) | 2023-10-16 |
WO2020021749A1 (ja) | 2020-01-30 |
CN112368871A (zh) | 2021-02-12 |
US20210344008A1 (en) | 2021-11-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10454138B2 (en) | Non-aqueous electrolyte additive, non-aqueous electrolyte comprising the same, and lithium secondary battery including non-aqueous electrolyte | |
KR102062292B1 (ko) | 비수 전해액 및 비수 전해액 이차 전지의 제조 방법 | |
JP6094826B2 (ja) | 非水電解液二次電池とその製造方法および非水電解液 | |
US20110200886A1 (en) | Non-aqueous electrolyte and non-aqueous electrolyte secondary battery using the same | |
JP6970895B2 (ja) | 非水電解質二次電池 | |
JP6917907B2 (ja) | リチウムイオン二次電池用正極及びリチウムイオン二次電池、並びにリチウムイオン二次電池用正極の製造方法及び評価方法、及びリチウムイオン二次電池の製造方法 | |
CN110323485A (zh) | 二次电池 | |
JP5357517B2 (ja) | リチウムイオン二次電池 | |
WO2020026486A1 (ja) | 正極材料および二次電池 | |
JP2010044958A (ja) | 二次電池およびその製造方法、ならびに負極、正極および電解質 | |
EP3905390A1 (en) | Negative electrode for nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery | |
JPWO2016084357A1 (ja) | 非水電解質二次電池 | |
WO2019181278A1 (ja) | リチウム二次電池 | |
JPWO2020026487A1 (ja) | 正極活物質および二次電池 | |
JP7029676B2 (ja) | 非水電解質二次電池用負極、非水電解質二次電池及び非水電解質二次電池用負極の製造方法 | |
JP5843092B2 (ja) | リチウムイオン二次電池 | |
JP6229333B2 (ja) | 非水電解質二次電池 | |
WO2020262102A1 (ja) | 二次電池 | |
JP6627708B2 (ja) | リチウムイオン二次電池、及び、リチウムイオン二次電池の製造方法 | |
CN111052486B (zh) | 非水电解质二次电池 | |
JP5962467B2 (ja) | リチウムイオン二次電池 | |
JP6848749B2 (ja) | 二次電池 | |
JP7454796B2 (ja) | 非水電解質二次電池およびこれに用いる電解液 | |
JP7458033B2 (ja) | 非水電解質二次電池およびこれに用いる電解液 | |
JP7361316B2 (ja) | 二次電池およびその製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20201113 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20211206 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230117 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230317 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230620 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230802 |
|
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: 20230905 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20230922 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 7361316 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |