JP5987692B2 - 蓄電デバイス - Google Patents
蓄電デバイス Download PDFInfo
- Publication number
- JP5987692B2 JP5987692B2 JP2012551837A JP2012551837A JP5987692B2 JP 5987692 B2 JP5987692 B2 JP 5987692B2 JP 2012551837 A JP2012551837 A JP 2012551837A JP 2012551837 A JP2012551837 A JP 2012551837A JP 5987692 B2 JP5987692 B2 JP 5987692B2
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- JP
- Japan
- Prior art keywords
- current collector
- positive electrode
- active material
- negative electrode
- material layer
- Prior art date
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- 238000003860 storage Methods 0.000 title claims description 32
- 230000007797 corrosion Effects 0.000 claims description 49
- 238000005260 corrosion Methods 0.000 claims description 49
- 239000007774 positive electrode material Substances 0.000 claims description 49
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 claims description 40
- 230000002401 inhibitory effect Effects 0.000 claims description 38
- 239000008151 electrolyte solution Substances 0.000 claims description 34
- 239000007773 negative electrode material Substances 0.000 claims description 34
- 239000003792 electrolyte Substances 0.000 claims description 33
- 229910052782 aluminium Inorganic materials 0.000 claims description 20
- 239000011149 active material Substances 0.000 claims description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 14
- 229910052744 lithium Inorganic materials 0.000 claims description 13
- MCVFFRWZNYZUIJ-UHFFFAOYSA-M lithium;trifluoromethanesulfonate Chemical compound [Li+].[O-]S(=O)(=O)C(F)(F)F MCVFFRWZNYZUIJ-UHFFFAOYSA-M 0.000 claims description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000007740 vapor deposition Methods 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 7
- 229910003002 lithium salt Inorganic materials 0.000 claims description 5
- 159000000002 lithium salts Chemical class 0.000 claims description 5
- 150000002739 metals Chemical class 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 239000010408 film Substances 0.000 description 65
- -1 lithium transition metals Chemical class 0.000 description 18
- 239000000463 material Substances 0.000 description 17
- 238000006243 chemical reaction Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 11
- 239000003990 capacitor Substances 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 239000003960 organic solvent Substances 0.000 description 8
- 229910013870 LiPF 6 Inorganic materials 0.000 description 7
- 239000011230 binding agent Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 5
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 5
- 229910013872 LiPF Inorganic materials 0.000 description 5
- 101150058243 Lipf gene Proteins 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 239000011888 foil Substances 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000001629 suppression Effects 0.000 description 5
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 4
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 4
- GUUVPOWQJOLRAS-UHFFFAOYSA-N Diphenyl disulfide Chemical compound C=1C=CC=CC=1SSC1=CC=CC=C1 GUUVPOWQJOLRAS-UHFFFAOYSA-N 0.000 description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 4
- 239000002033 PVDF binder Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011883 electrode binding agent Substances 0.000 description 4
- GAEKPEKOJKCEMS-UHFFFAOYSA-N gamma-valerolactone Chemical compound CC1CCC(=O)O1 GAEKPEKOJKCEMS-UHFFFAOYSA-N 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
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- 229920002981 polyvinylidene fluoride Polymers 0.000 description 4
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
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- 230000000694 effects Effects 0.000 description 3
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 3
- ACFSQHQYDZIPRL-UHFFFAOYSA-N lithium;bis(1,1,2,2,2-pentafluoroethylsulfonyl)azanide Chemical compound [Li+].FC(F)(F)C(F)(F)S(=O)(=O)[N-]S(=O)(=O)C(F)(F)C(F)(F)F ACFSQHQYDZIPRL-UHFFFAOYSA-N 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910052723 transition metal Inorganic materials 0.000 description 3
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 2
- FSSPGSAQUIYDCN-UHFFFAOYSA-N 1,3-Propane sultone Chemical compound O=S1(=O)CCCO1 FSSPGSAQUIYDCN-UHFFFAOYSA-N 0.000 description 2
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 description 2
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 description 2
- BJWMSGRKJIOCNR-UHFFFAOYSA-N 4-ethenyl-1,3-dioxolan-2-one Chemical compound C=CC1COC(=O)O1 BJWMSGRKJIOCNR-UHFFFAOYSA-N 0.000 description 2
- 229910016569 AlF 3 Inorganic materials 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- 239000004962 Polyamide-imide Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- JKJWYKGYGWOAHT-UHFFFAOYSA-N bis(prop-2-enyl) carbonate Chemical compound C=CCOC(=O)OCC=C JKJWYKGYGWOAHT-UHFFFAOYSA-N 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 239000006258 conductive agent Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 2
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- 229910052745 lead Inorganic materials 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
- 150000002642 lithium compounds Chemical class 0.000 description 2
- TZIHFWKZFHZASV-UHFFFAOYSA-N methyl formate Chemical compound COC=O TZIHFWKZFHZASV-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- MHYFEEDKONKGEB-UHFFFAOYSA-N oxathiane 2,2-dioxide Chemical compound O=S1(=O)CCCCO1 MHYFEEDKONKGEB-UHFFFAOYSA-N 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229920002312 polyamide-imide Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229940014800 succinic anhydride Drugs 0.000 description 2
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 2
- 229910052714 tellurium Inorganic materials 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical compound CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 description 2
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- WDXYVJKNSMILOQ-UHFFFAOYSA-N 1,3,2-dioxathiolane 2-oxide Chemical compound O=S1OCCO1 WDXYVJKNSMILOQ-UHFFFAOYSA-N 0.000 description 1
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- NVJUHMXYKCUMQA-UHFFFAOYSA-N 1-ethoxypropane Chemical compound CCCOCC NVJUHMXYKCUMQA-UHFFFAOYSA-N 0.000 description 1
- CXBDYQVECUFKRK-UHFFFAOYSA-N 1-methoxybutane Chemical compound CCCCOC CXBDYQVECUFKRK-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- YEVQZPWSVWZAOB-UHFFFAOYSA-N 2-(bromomethyl)-1-iodo-4-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=CC=C(I)C(CBr)=C1 YEVQZPWSVWZAOB-UHFFFAOYSA-N 0.000 description 1
- MGADZUXDNSDTHW-UHFFFAOYSA-N 2H-pyran Chemical compound C1OC=CC=C1 MGADZUXDNSDTHW-UHFFFAOYSA-N 0.000 description 1
- FAYFWMOSHFCQPG-UHFFFAOYSA-N 3-Methyl sulfolene Chemical compound CC1=CCS(=O)(=O)C1 FAYFWMOSHFCQPG-UHFFFAOYSA-N 0.000 description 1
- OYOKPDLAMOMTEE-UHFFFAOYSA-N 4-chloro-1,3-dioxolan-2-one Chemical compound ClC1COC(=O)O1 OYOKPDLAMOMTEE-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- 229910010238 LiAlCl 4 Inorganic materials 0.000 description 1
- 229910015015 LiAsF 6 Inorganic materials 0.000 description 1
- 229910013063 LiBF 4 Inorganic materials 0.000 description 1
- 229910013372 LiC 4 Inorganic materials 0.000 description 1
- 229910013684 LiClO 4 Inorganic materials 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- 229910014689 LiMnO Inorganic materials 0.000 description 1
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 1
- 229910001290 LiPF6 Inorganic materials 0.000 description 1
- 229910012513 LiSbF 6 Inorganic materials 0.000 description 1
- 229910001228 Li[Ni1/3Co1/3Mn1/3]O2 (NCM 111) Inorganic materials 0.000 description 1
- XOBKSJJDNFUZPF-UHFFFAOYSA-N Methoxyethane Chemical compound CCOC XOBKSJJDNFUZPF-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- KLARSDUHONHPRF-UHFFFAOYSA-N [Li].[Mn] Chemical compound [Li].[Mn] KLARSDUHONHPRF-UHFFFAOYSA-N 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002134 carbon nanofiber Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- SXWUDUINABFBMK-UHFFFAOYSA-L dilithium;fluoro-dioxido-oxo-$l^{5}-phosphane Chemical compound [Li+].[Li+].[O-]P([O-])(F)=O SXWUDUINABFBMK-UHFFFAOYSA-L 0.000 description 1
- NKDDWNXOKDWJAK-UHFFFAOYSA-N dimethoxymethane Chemical compound COCOC NKDDWNXOKDWJAK-UHFFFAOYSA-N 0.000 description 1
- POLCUAVZOMRGSN-UHFFFAOYSA-N dipropyl ether Chemical compound CCCOCCC POLCUAVZOMRGSN-UHFFFAOYSA-N 0.000 description 1
- 238000007606 doctor blade method Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- KLKFAASOGCDTDT-UHFFFAOYSA-N ethoxymethoxyethane Chemical compound CCOCOCC KLKFAASOGCDTDT-UHFFFAOYSA-N 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 150000002221 fluorine Chemical group 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000003709 fluoroalkyl group Chemical group 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002608 ionic liquid Substances 0.000 description 1
- 239000005001 laminate film Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 1
- 229910052808 lithium carbonate Inorganic materials 0.000 description 1
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Inorganic materials [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 description 1
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 1
- 229910001947 lithium oxide Inorganic materials 0.000 description 1
- 229910021437 lithium-transition metal oxide Inorganic materials 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- VNKYTQGIUYNRMY-UHFFFAOYSA-N methoxypropane Chemical compound CCCOC VNKYTQGIUYNRMY-UHFFFAOYSA-N 0.000 description 1
- GKTNLYAAZKKMTQ-UHFFFAOYSA-N n-[bis(dimethylamino)phosphinimyl]-n-methylmethanamine Chemical compound CN(C)P(=N)(N(C)C)N(C)C GKTNLYAAZKKMTQ-UHFFFAOYSA-N 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- WYVAMUWZEOHJOQ-UHFFFAOYSA-N propionic anhydride Chemical compound CCC(=O)OC(=O)CC WYVAMUWZEOHJOQ-UHFFFAOYSA-N 0.000 description 1
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 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
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical compound [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- MBDNRNMVTZADMQ-UHFFFAOYSA-N sulfolene Chemical compound O=S1(=O)CC=CC1 MBDNRNMVTZADMQ-UHFFFAOYSA-N 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 239000006163 transport media Substances 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- RXPQRKFMDQNODS-UHFFFAOYSA-N tripropyl phosphate Chemical compound CCCOP(=O)(OCCC)OCCC RXPQRKFMDQNODS-UHFFFAOYSA-N 0.000 description 1
- 230000005612 types of electricity Effects 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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Description
正極は、正極活物質層と、これを積層する正極集電体とを有する。
負極は、負極活物質層と、これを積層する負極集電体とを有する。
電解液は、正極及び負極を浸漬して配置され、正極及び負極間の荷電体の移動を可能とするものであり、有機溶媒に電解質を溶解したものを用いる。有機溶媒としては、具体的には、例えば、エチレンカーボネート(EC)、プロピレンカーボネート(PC)、ブチレンカーボネート(BC)、ビニレンカーボネート(VC)、ビニルエチレンカーボネート(VEC)、エチレンサルファイト(ES)、プロパンサルトン(PS)、ブタンスルトン(BS)、Dioxathiolane-2,2-dioxide(DD)、スルホレン、3−メチルスルホレン、スルホラン(SL)、無水コハク酸(SUCAH)、無水プロピオン酸、無水酢酸、無水マレイン酸、ジアリルカーボネート(DAC)、ジフェニルジサルファイド(DPS)、ジメチルカーボネート(DMC)、エチルメチルカーボネート(EMC)、クロロエチレンカーボネート、ジエチルカーボネート(DEC)、ジメトキシエタン(DME)、ジメトキシメタン(DMM)、ジエトキシエタン(DEE)、エトキシメトキシエタン、ジメチルエーテル、メチルエチルエーテル、メチルプロピルエーテル、エチルプロピルエーテル、ジプロピルエーテル、メチルブチルエーテル、ジエチルエーテル、フェニルメチルエーテル、テトラヒドロフラン(THF)、テトラヒドロピラン(THP)、1,4−ジオキサン(DIOX)、1,3−ジオキソラン(DOL)、アセトニトリル、プロピオンニトリル、γ−ブチロラクトン、γ−バレロラクトン、ギ酸メチル、酢酸メチル、プロピオン酸エチル等の脂肪族カルボン酸エステル類等を挙げることができる。また、電解液の難燃効果を高めるために、リン酸トリメチル、リン酸トリエチル、リン酸トリプロピル、リン酸トリオクチル、リン酸トリフェニル、Rv1-O-Rv2(Rv1,Rv2はそれぞれアルキル基又はフッ素アルキル基)構造をもつフッ素化エーテル、イオン液体、ホスファゼン等を混合させてもよい。これらの有機溶媒は、単独で使用してもよく、2種以上を併用してもよい。
セパレータは、正極及び負極の接触を抑制し、荷電体の透過を阻害せず、電解液に対して耐久性を有するものであれば、いずれであってもよい。具体的な材質としては、ポリプロピレン、ポリエチレン等のポリオレフィン系微多孔膜、セルロース、ポリエチレンテレフタレート、ポリイミド、ポリアミドイミド、ポリフッカビニリデン、ポリテトラフルオロエチレン等を採用することができる。これらは、多孔質フィルム、織物、不織布等として用いることができる。
外装体としては、上記正極及び負極、セパレータ、電解液を安定して保持可能な強度を有し、これらの物質に対して電気化学的に安定で、水密性を有するものが好ましい。具体的には、例えば、積層ラミネート型の二次電池の場合、外装体としては、アルミニウム、シリカをコーティングしたポリプロピレン、ポリエチレン等のラミネートフィルムを用いることができる。
[実施例1]
[正極の作製]
正極活物質として、リチウムマンガン複合酸化物(LiMn2O4)系材料に、導電剤としてVGCF(昭和電工(株)製)を混合し、これをN−メチルピロリドン(NMP)に分散させてスラリーとした。正極集電体としてのアルミニウム箔に、スラリーを塗布し、乾燥し、直径12mmの電極を調製した。
負極活物質として、黒鉛系材料をN−メチルピロリドン(NMP)に分散させてスラリーとした。負極集電体としての銅箔に、スラリーを塗布し、乾燥し、直径12mmの電極を作製した。
ドライルーム中で、有機溶媒EC:DEC(30:70)に、1mol/LのLiTFSIを溶解した電解液を作製した。
得られた正極を、集電体作用を有するステンレスのコインセル受型上に置き、多孔質のポリエチレンフィルムからなるセパレータ4を挟んで得られた負極と重ね合わせ電極積層体を得た。得られた電極積層体に、上記の方法で得られた電解液を注入し、真空含浸させた。十分に含浸させて電極及びセパレータの空隙を電解液で埋めた後、絶縁パッキンと、集電体作用を有するコインセル受型とを重ね合わせ、専用のかしめ機で外側をステンレス外装で覆って一体化させて、図1に示すコイン型二次電池を作製した。得られたコイン型リチウム二次電池を用いて、以下の方法により初回放電容量を測定した。結果を表1に示す。
作製したコイン型のリチウム二次電池に、0.073mAの電流で、上限電位は4.2V、下限電位は3.0Vで初回放電を行った。放電量の測定値から正極活物質の単位質量当りに換算し、初回放電容量を求めた。
正極のアルミニウム集電体に形成したフッ化リチウム膜の膜厚を、200nmに変更した以外は、実施例1と同様にコイン型リチウム二次電池を作製し、初回放電容量を求めた。結果を表1に示す。
正極のアルミニウム集電体に形成したフッ化リチウム膜の膜厚を、500nmに変更した以外は、実施例1と同様にコイン型リチウム二次電池を作製し、初回放電容量を求めた。結果を表1に示す。
LiTFSIに変えてLiPF6を溶解した電解液を用いた以外は、実施例1と同様にコイン型リチウム二次電池を作製し、初回放電容量を求めた。結果を表1に示す。
正極のアルミニウム集電体にフッ化リチウム膜を形成しなかった以外は、実施例1と同様にコイン型リチウム二次電池を作製し、初回放電容量を求めた。結果を表1に示す。
正極のアルミニウム集電体にフッ化リチウム膜を形成せず、LiTFSIに変えてLiPF6を溶解した電解液を用いた以外は、実施例1と同様にコイン型リチウム二次電池を作製し、初回放電容量を求めた。結果を表1に示す。
3 負極集電体
4 負極活物質層
5 セパレータ
6 正極活物質層
7 正極集電体
10 コイン型二次電池
Claims (6)
- 正極集電体上に正極活物質層を有する正極、負極集電体上に負極活物質層を有する負極、セパレータ、及び電解液を有する蓄電デバイスであって、活物質層が積層される部分を除いた正極集電体若しくは活物質層が積層される部分を除いた負極集電体、又はこれらの両方が、表面に腐食抑制膜を有し、該腐食抑制膜がフッ化リチウムを含有し、厚さが50nm以上であることを特徴とする蓄電デバイス。
- 前記腐食抑制膜が蒸着膜であることを特徴とする請求項1に記載の蓄電デバイス。
- 正極集電体若しくは負極集電体、又はこれらの両方が、アルミニウム、ニッケル、クロム、ステンレス、銅、銀、及びこれらの金属のいずれかを含む合金から選ばれる1種又は2種以上を含有することを特徴とする請求項1又は2に記載の蓄電デバイス。
- 前記電解液が、リチウムビストリフルオロメタンスルホニルイミド及びトリフルオロメタンスルホン酸リチウムのリチウム塩から選ばれる1種又は2種を含有することを特徴とする請求項1から3のいずれかに記載の蓄電デバイス。
- 前記電解液が、リチウム塩を0.01mol/L以上、3mol/L以下の範囲溶解していることを特徴とする請求項1から4のいずれかに記載の蓄電デバイス。
- 正極集電体上に正極活物質層を有する正極、負極集電体上に負極活物質層を有する負極、セパレータ、及び電解液を有する蓄電デバイスの製造方法であって、活物質層が積層される部分を除いた正極集電体若しくは活物質層が積層される部分を除いた負極集電体、又はこれらの両方上に、リチウム塩を蒸着して、厚さが50nm以上のフッ化リチウムを含有する腐食抑制膜を形成することを特徴とする蓄電デバイスの製造方法。
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US9273399B2 (en) * | 2013-03-15 | 2016-03-01 | Ppg Industries Ohio, Inc. | Pretreatment compositions and methods for coating a battery electrode |
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WO2017057486A1 (ja) * | 2015-09-28 | 2017-04-06 | Jsr株式会社 | 電極材料、電池、及びキャパシタの製造方法、並びに電極材料の製造装置 |
US10658696B2 (en) | 2015-12-01 | 2020-05-19 | Nissan Chemical Industries, Ltd. | Nonaqueous secondary battery |
JP6773498B2 (ja) | 2016-09-21 | 2020-10-21 | 株式会社東芝 | 電極、非水電解質電池、電池パック、及び車両 |
JP6978259B2 (ja) * | 2016-10-14 | 2021-12-08 | 三洋化成工業株式会社 | リチウムイオン電池用正極及びリチウムイオン電池 |
JP6843580B2 (ja) * | 2016-10-21 | 2021-03-17 | 三洋化成工業株式会社 | リチウムイオン電池の製造方法 |
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2011
- 2011-12-27 US US13/976,702 patent/US20130280599A1/en not_active Abandoned
- 2011-12-27 JP JP2012551837A patent/JP5987692B2/ja active Active
- 2011-12-27 WO PCT/JP2011/080150 patent/WO2012093616A1/ja active Application Filing
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WO2012093616A1 (ja) | 2012-07-12 |
US20130280599A1 (en) | 2013-10-24 |
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