JP6068789B2 - リチウム2次電池用電解液およびこれを含むリチウム2次電池 - Google Patents
リチウム2次電池用電解液およびこれを含むリチウム2次電池 Download PDFInfo
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- JP6068789B2 JP6068789B2 JP2011239114A JP2011239114A JP6068789B2 JP 6068789 B2 JP6068789 B2 JP 6068789B2 JP 2011239114 A JP2011239114 A JP 2011239114A JP 2011239114 A JP2011239114 A JP 2011239114A JP 6068789 B2 JP6068789 B2 JP 6068789B2
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- Prior art keywords
- secondary battery
- lithium secondary
- compound
- alkylbenzonitrile
- electrolyte
- Prior art date
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- 229910052744 lithium Inorganic materials 0.000 title claims description 58
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims description 53
- 239000008151 electrolyte solution Substances 0.000 title claims description 24
- -1 alkyl benzonitrile compound Chemical class 0.000 claims description 49
- 150000001875 compounds Chemical class 0.000 claims description 44
- 239000000126 substance Substances 0.000 claims description 26
- 239000003792 electrolyte Substances 0.000 claims description 20
- 125000000217 alkyl group Chemical group 0.000 claims description 14
- 125000004432 carbon atom Chemical group C* 0.000 claims description 14
- 239000011356 non-aqueous organic solvent Substances 0.000 claims description 13
- JFDZBHWFFUWGJE-UHFFFAOYSA-N benzenecarbonitrile Natural products N#CC1=CC=CC=C1 JFDZBHWFFUWGJE-UHFFFAOYSA-N 0.000 claims description 12
- 238000000354 decomposition reaction Methods 0.000 claims description 11
- NWPNXBQSRGKSJB-UHFFFAOYSA-N o-methylbenzonitrile Natural products CC1=CC=CC=C1C#N NWPNXBQSRGKSJB-UHFFFAOYSA-N 0.000 claims description 8
- 229910003002 lithium salt Inorganic materials 0.000 claims description 7
- 159000000002 lithium salts Chemical class 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 20
- 238000004502 linear sweep voltammetry Methods 0.000 description 18
- 239000007774 positive electrode material Substances 0.000 description 12
- 229940021013 electrolyte solution Drugs 0.000 description 11
- 239000011572 manganese Substances 0.000 description 11
- 239000007773 negative electrode material Substances 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- 239000004020 conductor Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000002033 PVDF binder Substances 0.000 description 7
- 239000011230 binding agent Substances 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 7
- 229910052759 nickel Inorganic materials 0.000 description 7
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- 239000011247 coating layer Substances 0.000 description 6
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 6
- 229910052748 manganese Inorganic materials 0.000 description 6
- 229910052720 vanadium Inorganic materials 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 5
- 229910052804 chromium Inorganic materials 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 229910052749 magnesium Inorganic materials 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
- IAHFWCOBPZCAEA-UHFFFAOYSA-N succinonitrile Chemical compound N#CCCC#N IAHFWCOBPZCAEA-UHFFFAOYSA-N 0.000 description 5
- BJWMSGRKJIOCNR-UHFFFAOYSA-N 4-ethenyl-1,3-dioxolan-2-one Chemical compound C=CC1COC(=O)O1 BJWMSGRKJIOCNR-UHFFFAOYSA-N 0.000 description 4
- SBLRHMKNNHXPHG-UHFFFAOYSA-N 4-fluoro-1,3-dioxolan-2-one Chemical compound FC1COC(=O)O1 SBLRHMKNNHXPHG-UHFFFAOYSA-N 0.000 description 4
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 4
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910021383 artificial graphite Inorganic materials 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229910052712 strontium Inorganic materials 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 125000004093 cyano group Chemical group *C#N 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910021382 natural graphite Inorganic materials 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 229910052718 tin Inorganic materials 0.000 description 3
- 229910052723 transition metal Inorganic materials 0.000 description 3
- 150000003624 transition metals Chemical class 0.000 description 3
- 229910052727 yttrium 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
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- OZJPLYNZGCXSJM-UHFFFAOYSA-N 5-valerolactone Chemical compound O=C1CCCCO1 OZJPLYNZGCXSJM-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 2
- 229910013063 LiBF 4 Inorganic materials 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 239000006230 acetylene black Substances 0.000 description 2
- 239000011149 active material Substances 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- 229910003481 amorphous carbon Inorganic materials 0.000 description 2
- 239000000010 aprotic solvent Substances 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000005466 carboxylated polyvinylchloride Substances 0.000 description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- VUPKGFBOKBGHFZ-UHFFFAOYSA-N dipropyl carbonate Chemical compound CCCOC(=O)OCCC VUPKGFBOKBGHFZ-UHFFFAOYSA-N 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 2
- QKBJDEGZZJWPJA-UHFFFAOYSA-N ethyl propyl carbonate Chemical compound [CH2]COC(=O)OCCC QKBJDEGZZJWPJA-UHFFFAOYSA-N 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 2
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 238000009830 intercalation Methods 0.000 description 2
- 239000003273 ketjen black Substances 0.000 description 2
- 229910052745 lead Inorganic materials 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920002620 polyvinyl fluoride Polymers 0.000 description 2
- 229920000973 polyvinylchloride carboxylated Polymers 0.000 description 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 2
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 2
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- YKYONYBAUNKHLG-UHFFFAOYSA-N propyl acetate Chemical compound CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- 229910052706 scandium Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000314 transition metal oxide Inorganic materials 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- JYVXNLLUYHCIIH-UHFFFAOYSA-N (+/-)-mevalonolactone Natural products CC1(O)CCOC(=O)C1 JYVXNLLUYHCIIH-UHFFFAOYSA-N 0.000 description 1
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 description 1
- LYCALCIJYUIMEO-UHFFFAOYSA-N 2-pentylbenzonitrile Chemical compound CCCCCC1=CC=CC=C1C#N LYCALCIJYUIMEO-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 125000003860 C1-C20 alkoxy group Chemical group 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- OUIZQAPFPIQXKR-YFHOEESVSA-N Cc1ccc(/C=N\C)cc1 Chemical compound Cc1ccc(/C=N\C)cc1 OUIZQAPFPIQXKR-YFHOEESVSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- QSJXEFYPDANLFS-UHFFFAOYSA-N Diacetyl Chemical group CC(=O)C(C)=O QSJXEFYPDANLFS-UHFFFAOYSA-N 0.000 description 1
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229910010238 LiAlCl 4 Inorganic materials 0.000 description 1
- 229910010093 LiAlO Inorganic materials 0.000 description 1
- 229910015015 LiAsF 6 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
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- 229910013417 LiN(SO3C2F5)2 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
- 239000005062 Polybutadiene Substances 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- JYVXNLLUYHCIIH-ZCFIWIBFSA-N R-mevalonolactone, (-)- Chemical compound C[C@@]1(O)CCOC(=O)C1 JYVXNLLUYHCIIH-ZCFIWIBFSA-N 0.000 description 1
- 229910008326 Si-Y Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910006773 Si—Y Inorganic materials 0.000 description 1
- 229910020997 Sn-Y Inorganic materials 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 229910008859 Sn—Y Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- RLTFLELMPUMVEH-UHFFFAOYSA-N [Li+].[O--].[O--].[O--].[V+5] Chemical compound [Li+].[O--].[O--].[O--].[V+5] RLTFLELMPUMVEH-UHFFFAOYSA-N 0.000 description 1
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-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
- 229920005993 acrylate styrene-butadiene rubber polymer Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000004104 aryloxy group Chemical group 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 229910021475 bohrium Inorganic materials 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- 239000011329 calcined coke Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- NKCVNYJQLIWBHK-UHFFFAOYSA-N carbonodiperoxoic acid Chemical compound OOC(=O)OO NKCVNYJQLIWBHK-UHFFFAOYSA-N 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 229910052798 chalcogen Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 125000000392 cycloalkenyl group Chemical group 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009831 deintercalation Methods 0.000 description 1
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 150000004862 dioxolanes Chemical class 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052730 francium Inorganic materials 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 229910021473 hassium Inorganic materials 0.000 description 1
- 125000001072 heteroaryl group Chemical group 0.000 description 1
- 125000004366 heterocycloalkenyl group Chemical group 0.000 description 1
- 125000000592 heterocycloalkyl group Chemical group 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- KQNPFQTWMSNSAP-UHFFFAOYSA-N isobutyric acid Chemical compound CC(C)C(O)=O KQNPFQTWMSNSAP-UHFFFAOYSA-N 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910000686 lithium vanadium oxide Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000006051 mesophase pitch carbide Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- KKQAVHGECIBFRQ-UHFFFAOYSA-N methyl propyl carbonate Chemical compound CCCOC(=O)OC KKQAVHGECIBFRQ-UHFFFAOYSA-N 0.000 description 1
- 229940057061 mevalonolactone Drugs 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- 238000009783 overcharge test Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- GHZRKQCHJFHJPX-UHFFFAOYSA-N oxacycloundecan-2-one Chemical compound O=C1CCCCCCCCCO1 GHZRKQCHJFHJPX-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910052699 polonium Inorganic materials 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000307 polymer substrate Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910021481 rutherfordium Inorganic materials 0.000 description 1
- 229910021477 seaborgium Inorganic materials 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229910021384 soft carbon Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical class O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 229910052713 technetium Inorganic materials 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- ZUHZGEOKBKGPSW-UHFFFAOYSA-N tetraglyme Chemical compound COCCOCCOCCOCCOC ZUHZGEOKBKGPSW-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 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
- 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
- H01M10/056—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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
- C07C255/49—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
- C07C255/50—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton to carbon atoms of non-condensed six-membered aromatic rings
-
- 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
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
-
- 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
-
- 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
- H01M2300/0037—Mixture of 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
Description
Rは、置換または非置換された炭素数1〜5のアルキル基である。)
<実施例1〜24および比較例1〜10>
エチレンカーボネート(EC)、エチルメチルカーボネート(EMC)およびジエチルカーボネート(DEC)がそれぞれ3:5:2の体積比で混合された溶液に、1.0M濃度のLiPF6を溶解させて電解質前駆体を製造した。フルオロエチレンカーボネート(FEC)5重量%、ビニルエチレンカーボネート(VEC)1重量%、LiBF4の0.2重量%及びコハク酸ニトリル1重量%とアルキルベンゾニトリル化合物を、下記表1に示す種類および含量で、前記電解質前駆体に添加して電解液を製造した。
正極活物質としてLiCoO2、バインダーとしてポリフッ化ビニリデン(PVDF)および導電材としてカーボンをそれぞれ92:4:4の重量比で混合し、N−メチル−2−ピロリドンに分散させて正極活物質層組成物を製造した。前記正極活物質層組成物を厚さ20μmのアルミニウム箔にコーティングして乾燥および圧延後、正極を製造した。
実施例2および比較例1で製造された電解液に対してLSV(linear sweep voltametry)により分解開始電圧を測定し、その結果を図2および3に示した。
実施例2により製作されたそれぞれのリチウム2次電池を過充電する場合、電圧および温度の状態を測定してその結果を図4に示した。
実施例1〜24および比較例1〜10により製作されたそれぞれのリチウム2次電池パックをi)標準環境で1220mA、4.2V、33minカットオフで充電後、10分以上72時間以内で休止後、ii)充電後2次保護素子(thermal fuse:EYP2MP098DUK)を付着した(単一セルで評価する)。iii)パックを木板上に載せた後、950mA、10Vの定電流および定電圧で5時間充電した。iv)最高温度評価後、OCV発生および外形を観察して過充電時の安全性を評価し、その結果を下記表2に示した。
実施例1〜24および比較例1〜10により製作されたそれぞれのリチウム2次電池をi)標準環境で950mA、4.2V、0.05C(60mA)カットオフで充電後、10分以上72時間以内に休止後、ii)250℃のホットプレート上にリチウム2次電池を載せた後、iii)発生現象および外形を観察して過充電時の安全性を評価し、その結果を下記表2に示した。
Lの前の数字はテストセルの数を意味し、
L0:良好、L1:漏液、L2:閃光、L3:煙、L4:発火、L5:破裂を示す。
実施例1〜24および比較例1〜10により製作されたそれぞれのリチウム2次電池を定電流−定電圧(CC−CV)条件下で1Cで4.2Vの充電電圧まで充電し、CC条件下で1Cで3.0Vのカットオフ電圧まで放電した。この充放電を300回繰り返してサイクルによる容量維持率を測定して寿命特性を評価し、その結果を下記表2に示した。
4:電極組立体
5:正極
6:負極
7:セパレータ
8:電池ケース
11:キャッププレート
Claims (6)
- 前記アルキルベンゾニトリル化合物は、LSV測定時に4.90〜5.30Vでピークが存在する、請求項1〜4のうちのいずれか一項に記載のリチウム2次電池用電解液。
- 正極;
負極;および
請求項1〜5のうちのいずれか一項に記載の電解液
を含む、リチウム2次電池。
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KR1020110013769A KR101309157B1 (ko) | 2011-02-16 | 2011-02-16 | 리튬 이차 전지용 전해액 및 이를 포함하는 리튬 이차 전지 |
KR10-2011-0013769 | 2011-02-16 |
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EP (1) | EP2490292B1 (ja) |
JP (1) | JP6068789B2 (ja) |
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CN (1) | CN102646846B (ja) |
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JP5655653B2 (ja) * | 2011-03-17 | 2015-01-21 | 三菱化学株式会社 | 非水系電解液及びそれを用いたリチウム二次電池 |
EP3020056B1 (en) * | 2013-07-12 | 2019-06-19 | Ioxus, Inc. | Stability enhancing additive for electrochemical devices |
KR102129499B1 (ko) * | 2013-11-11 | 2020-07-03 | 맥셀 홀딩스 가부시키가이샤 | 리튬 이차 전지 |
JP6396153B2 (ja) * | 2013-11-11 | 2018-09-26 | マクセルホールディングス株式会社 | リチウム二次電池 |
KR101702981B1 (ko) | 2013-11-20 | 2017-02-06 | 삼성에스디아이 주식회사 | 리튬 이차 전지용 전해액 및 이를 포함하는 리튬 이차 전지 |
CN104953173B (zh) * | 2014-03-28 | 2018-12-21 | 比亚迪股份有限公司 | 一种锂离子电池电解液及含有该电解液的锂离子电池 |
JP6396136B2 (ja) * | 2014-09-18 | 2018-09-26 | マクセルホールディングス株式会社 | リチウム二次電池 |
JP6592256B2 (ja) * | 2015-03-09 | 2019-10-16 | マクセルホールディングス株式会社 | リチウムイオン二次電池 |
JP7105194B2 (ja) * | 2016-03-29 | 2022-07-22 | アンテオ テクノロジーズ プロプライエタリー リミテッド | 導電性インタフェースおよび導電性インタフェースを含む電極を製造する方法 |
CN107417569B (zh) * | 2016-05-23 | 2020-04-14 | 微宏动力***(湖州)有限公司 | 一种非水电解液用三级腈化合物、包含其的非水电解液及二次电池 |
CN109326825B (zh) * | 2017-07-31 | 2024-01-19 | 住友化学株式会社 | 非水电解液二次电池 |
CA3226004A1 (en) * | 2018-10-04 | 2020-04-09 | Hydro-Quebec | Additives for electrolytes in li-ion batteries |
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JPS59203368A (ja) * | 1983-05-04 | 1984-11-17 | Showa Denko Kk | 電池 |
JPS6020476A (ja) * | 1983-07-13 | 1985-02-01 | Showa Denko Kk | 二次電池 |
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WO2001029920A1 (en) * | 1999-10-18 | 2001-04-26 | The Regents Of The University Of California | Shutdown and redox shuttle additives for batteries |
CN100585935C (zh) * | 2002-07-15 | 2010-01-27 | 宇部兴产株式会社 | 非水电解液和锂电池 |
EP1508934B1 (en) * | 2003-08-20 | 2007-02-28 | Samsung SDI Co., Ltd. | Electrolyte for rechargeable lithium battery and rechargeable lithium battery comprising the same |
KR100709206B1 (ko) * | 2003-10-31 | 2007-04-19 | 삼성에스디아이 주식회사 | 리튬 이차 전지용 전해액 및 이를 포함하는 리튬 이차 전지 |
JP4970056B2 (ja) * | 2004-02-10 | 2012-07-04 | エルジー・ケム・リミテッド | 非水電解液及びこれを用いたリチウム二次電池 |
US20110207000A1 (en) * | 2006-09-07 | 2011-08-25 | Jow T Richard | Nitrile additive for non-aqueous electrolyte rechargeable electrochemical cells |
KR101179392B1 (ko) * | 2006-11-13 | 2012-09-04 | 주식회사 엘지화학 | 비수전해액 첨가제 및 이를 이용하는 이차 전지 |
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JP2010010078A (ja) * | 2008-06-30 | 2010-01-14 | Daikin Ind Ltd | 非水電解液 |
JP5116654B2 (ja) * | 2008-11-17 | 2013-01-09 | 三洋化成工業株式会社 | 第4級アンモニウム塩電解質を用いた電解液および電気化学素子 |
US8048559B2 (en) * | 2009-07-08 | 2011-11-01 | Samsung Sdi Co., Ltd | Secondary battery and method of making the secondary battery |
JP5867397B2 (ja) * | 2010-09-02 | 2016-02-24 | 日本電気株式会社 | 二次電池 |
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EP2490292B1 (en) | 2016-05-04 |
JP2012169253A (ja) | 2012-09-06 |
CN102646846B (zh) | 2016-06-01 |
KR20120094331A (ko) | 2012-08-24 |
US20120208080A1 (en) | 2012-08-16 |
CN102646846A (zh) | 2012-08-22 |
EP2490292A1 (en) | 2012-08-22 |
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