JP5420888B2 - 電池 - Google Patents
電池 Download PDFInfo
- Publication number
- JP5420888B2 JP5420888B2 JP2008318532A JP2008318532A JP5420888B2 JP 5420888 B2 JP5420888 B2 JP 5420888B2 JP 2008318532 A JP2008318532 A JP 2008318532A JP 2008318532 A JP2008318532 A JP 2008318532A JP 5420888 B2 JP5420888 B2 JP 5420888B2
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- current collector
- lead
- battery
- exposed portion
- 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.)
- Expired - Fee Related
Links
- 238000003466 welding Methods 0.000 claims description 155
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical group [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 57
- 229910001416 lithium ion Inorganic materials 0.000 claims description 57
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 45
- 229910052759 nickel Inorganic materials 0.000 claims description 20
- 239000008151 electrolyte solution Substances 0.000 claims description 10
- 239000011149 active material Substances 0.000 claims description 7
- 238000010030 laminating Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 239000011255 nonaqueous electrolyte Substances 0.000 description 30
- -1 polytetrafluoroethylene Polymers 0.000 description 23
- 229910052782 aluminium Inorganic materials 0.000 description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 16
- 239000007774 positive electrode material Substances 0.000 description 16
- 238000007789 sealing Methods 0.000 description 16
- 229910052751 metal Inorganic materials 0.000 description 15
- 239000002184 metal Substances 0.000 description 15
- 239000000203 mixture Substances 0.000 description 15
- 239000007773 negative electrode material Substances 0.000 description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 13
- 229910052744 lithium Inorganic materials 0.000 description 12
- 239000000463 material Substances 0.000 description 12
- 229910052802 copper Inorganic materials 0.000 description 11
- 239000010949 copper Substances 0.000 description 11
- 239000011888 foil Substances 0.000 description 11
- 239000002002 slurry Substances 0.000 description 10
- 239000011230 binding agent Substances 0.000 description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 230000020169 heat generation Effects 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- 239000011889 copper foil Substances 0.000 description 5
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- RIUWBIIVUYSTCN-UHFFFAOYSA-N trilithium borate Chemical compound [Li+].[Li+].[Li+].[O-]B([O-])[O-] RIUWBIIVUYSTCN-UHFFFAOYSA-N 0.000 description 5
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 description 4
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229920002845 Poly(methacrylic acid) Polymers 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- 229920002125 Sokalan® Polymers 0.000 description 4
- 239000006258 conductive agent Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 239000004584 polyacrylic acid Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 229910021383 artificial graphite Inorganic materials 0.000 description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 3
- 238000007600 charging Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000005518 polymer electrolyte Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- FSSPGSAQUIYDCN-UHFFFAOYSA-N 1,3-Propane sultone Chemical compound O=S1(=O)CCCO1 FSSPGSAQUIYDCN-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 2
- 229910013290 LiNiO 2 Inorganic materials 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000006230 acetylene black Substances 0.000 description 2
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 2
- 239000011883 electrode binding agent Substances 0.000 description 2
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- GAEKPEKOJKCEMS-UHFFFAOYSA-N gamma-valerolactone Chemical compound CC1CCC(=O)O1 GAEKPEKOJKCEMS-UHFFFAOYSA-N 0.000 description 2
- 238000009413 insulation Methods 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
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 150000004702 methyl esters Chemical class 0.000 description 2
- TZIHFWKZFHZASV-UHFFFAOYSA-N methyl formate Chemical compound COC=O TZIHFWKZFHZASV-UHFFFAOYSA-N 0.000 description 2
- 239000012982 microporous membrane Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- PYOKUURKVVELLB-UHFFFAOYSA-N trimethyl orthoformate Chemical compound COC(OC)OC PYOKUURKVVELLB-UHFFFAOYSA-N 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- FTQOCZCGLMBLBG-IOBHVTPZSA-N (Z)-18-[3-[(Z)-17-carboxyheptadec-9-enyl]naphthalen-2-yl]octadec-9-enoic acid Chemical compound C1=C(C(=CC2=CC=CC=C12)CCCCCCCC\C=C/CCCCCCCC(=O)O)CCCCCCCC\C=C/CCCCCCCC(=O)O FTQOCZCGLMBLBG-IOBHVTPZSA-N 0.000 description 1
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 1
- LZDKZFUFMNSQCJ-UHFFFAOYSA-N 1,2-diethoxyethane Chemical compound CCOCCOCC LZDKZFUFMNSQCJ-UHFFFAOYSA-N 0.000 description 1
- VFRGATWKSPNXLT-UHFFFAOYSA-N 1,2-dimethoxybutane Chemical compound CCC(OC)COC VFRGATWKSPNXLT-UHFFFAOYSA-N 0.000 description 1
- OIAQMFOKAXHPNH-UHFFFAOYSA-N 1,2-diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC=C1C1=CC=CC=C1 OIAQMFOKAXHPNH-UHFFFAOYSA-N 0.000 description 1
- WDXYVJKNSMILOQ-UHFFFAOYSA-N 1,3,2-dioxathiolane 2-oxide Chemical compound O=S1OCCO1 WDXYVJKNSMILOQ-UHFFFAOYSA-N 0.000 description 1
- CYSGHNMQYZDMIA-UHFFFAOYSA-N 1,3-Dimethyl-2-imidazolidinon Chemical compound CN1CCN(C)C1=O CYSGHNMQYZDMIA-UHFFFAOYSA-N 0.000 description 1
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 1
- NZPSDGIEKAQVEZ-UHFFFAOYSA-N 1,3-benzodioxol-2-one Chemical compound C1=CC=CC2=C1OC(=O)O2 NZPSDGIEKAQVEZ-UHFFFAOYSA-N 0.000 description 1
- CRMJLJFDPNJIQA-UHFFFAOYSA-N 2,4-difluoro-1-methoxybenzene Chemical compound COC1=CC=C(F)C=C1F CRMJLJFDPNJIQA-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 description 1
- VWIIJDNADIEEDB-UHFFFAOYSA-N 3-methyl-1,3-oxazolidin-2-one Chemical compound CN1CCOC1=O VWIIJDNADIEEDB-UHFFFAOYSA-N 0.000 description 1
- CMJLMPKFQPJDKP-UHFFFAOYSA-N 3-methylthiolane 1,1-dioxide Chemical compound CC1CCS(=O)(=O)C1 CMJLMPKFQPJDKP-UHFFFAOYSA-N 0.000 description 1
- GKZFQPGIDVGTLZ-UHFFFAOYSA-N 4-(trifluoromethyl)-1,3-dioxolan-2-one Chemical compound FC(F)(F)C1COC(=O)O1 GKZFQPGIDVGTLZ-UHFFFAOYSA-N 0.000 description 1
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 1
- BJWMSGRKJIOCNR-UHFFFAOYSA-N 4-ethenyl-1,3-dioxolan-2-one Chemical compound C=CC1COC(=O)O1 BJWMSGRKJIOCNR-UHFFFAOYSA-N 0.000 description 1
- SBLRHMKNNHXPHG-UHFFFAOYSA-N 4-fluoro-1,3-dioxolan-2-one Chemical compound FC1COC(=O)O1 SBLRHMKNNHXPHG-UHFFFAOYSA-N 0.000 description 1
- SBUOHGKIOVRDKY-UHFFFAOYSA-N 4-methyl-1,3-dioxolane Chemical compound CC1COCO1 SBUOHGKIOVRDKY-UHFFFAOYSA-N 0.000 description 1
- ZKOGUIGAVNCCKH-UHFFFAOYSA-N 4-phenyl-1,3-dioxolan-2-one Chemical compound O1C(=O)OCC1C1=CC=CC=C1 ZKOGUIGAVNCCKH-UHFFFAOYSA-N 0.000 description 1
- 229910014195 BM-400B Inorganic materials 0.000 description 1
- HBJICDATLIMQTJ-UHFFFAOYSA-N C(O)(O)=O.C(=C)C=CC=C Chemical compound C(O)(O)=O.C(=C)C=CC=C HBJICDATLIMQTJ-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- 229910018119 Li 3 PO 4 Inorganic materials 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 229910012850 Li3PO4Li4SiO4 Inorganic materials 0.000 description 1
- 229910012047 Li4SiO4-LiI-LiOH Inorganic materials 0.000 description 1
- 229910012075 Li4SiO4-LiI—LiOH Inorganic materials 0.000 description 1
- 229910012057 Li4SiO4—LiI—LiOH Inorganic materials 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
- 229910013684 LiClO 4 Inorganic materials 0.000 description 1
- 229910013275 LiMPO 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
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 229920002873 Polyethylenimine Polymers 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- 229910020346 SiS 2 Inorganic materials 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- BEKPOUATRPPTLV-UHFFFAOYSA-N [Li].BCl Chemical compound [Li].BCl BEKPOUATRPPTLV-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
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- IMHDGJOMLMDPJN-UHFFFAOYSA-N biphenyl-2,2'-diol Chemical compound OC1=CC=CC=C1C1=CC=CC=C1O IMHDGJOMLMDPJN-UHFFFAOYSA-N 0.000 description 1
- JKJWYKGYGWOAHT-UHFFFAOYSA-N bis(prop-2-enyl) carbonate Chemical compound C=CCOC(=O)OCC=C JKJWYKGYGWOAHT-UHFFFAOYSA-N 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 235000019241 carbon black Nutrition 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 1
- 239000006231 channel black Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010280 constant potential charging Methods 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- HHNHBFLGXIUXCM-GFCCVEGCSA-N cyclohexylbenzene Chemical compound [CH]1CCCC[C@@H]1C1=CC=CC=C1 HHNHBFLGXIUXCM-GFCCVEGCSA-N 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
- 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
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 1
- VUPKGFBOKBGHFZ-UHFFFAOYSA-N dipropyl carbonate Chemical compound CCCOC(=O)OCCC VUPKGFBOKBGHFZ-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- KLKFAASOGCDTDT-UHFFFAOYSA-N ethoxymethoxyethane Chemical compound CCOCOCC KLKFAASOGCDTDT-UHFFFAOYSA-N 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 239000006232 furnace black Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- AHAREKHAZNPPMI-UHFFFAOYSA-N hexa-1,3-diene Chemical compound CCC=CC=C AHAREKHAZNPPMI-UHFFFAOYSA-N 0.000 description 1
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000003273 ketjen black Substances 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 description 1
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Inorganic materials [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 description 1
- IDBFBDSKYCUNPW-UHFFFAOYSA-N lithium nitride Chemical compound [Li]N([Li])[Li] IDBFBDSKYCUNPW-UHFFFAOYSA-N 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
- 229910001386 lithium phosphate Inorganic materials 0.000 description 1
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- PYLWMHQQBFSUBP-UHFFFAOYSA-N monofluorobenzene Chemical compound FC1=CC=CC=C1 PYLWMHQQBFSUBP-UHFFFAOYSA-N 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920002627 poly(phosphazenes) Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000006234 thermal black Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- TWQULNDIKKJZPH-UHFFFAOYSA-K trilithium;phosphate Chemical compound [Li+].[Li+].[Li+].[O-]P([O-])([O-])=O TWQULNDIKKJZPH-UHFFFAOYSA-K 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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- H01M10/00—Secondary cells; Manufacture thereof
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- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
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- H01M4/64—Carriers or collectors
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
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- H—ELECTRICITY
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- H01M50/50—Current conducting connections for cells or batteries
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- H01M50/534—Electrode connections inside a battery casing characterised by the material of the leads or tabs
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- H—ELECTRICITY
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- H01M50/50—Current conducting connections for cells or batteries
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Description
図1は、一般的な捲回式円筒型のリチウムイオン二次電池の断面図である。
実施形態2にかかる電池では、正極リード5の方が負極リード6よりも高抵抗である。
上記実施形態1および2は、以下に示す構成を備えていても良い。
−リチウムイオン二次電池の製造方法−
《実施例1》
(a)正極の作製
双腕式練合機を用いて、コバルト酸リチウム(正極活物質)3kgと、呉羽化学(株)製の「#1320(商品名)」(PVDFを12重量%含むNMP((N-methylpyrrolidone)溶液:正極の結着剤)1kgと、アセチレンブラック(導電剤)90gと、適量のNMPとを攪拌させた。これにより、正極合剤スラリーを調製した。
双腕式練合機を用いて、人造黒鉛(負極活物質)3kgと、日本ゼオン(株)製の「BM−400B(商品名)」(スチレン−ブタジエン共重合体の変性体を40重量%含む水性分散液:負極の結着剤)75gと、CMC(carboxymethyl cellulose:増粘剤)を30gと、適量の水とを攪拌させた。これにより、負極合剤スラリーを調製した。
エチレンカーボネート(EC)とエチルメチルカーボネート(EMC:ethyl methyl carbonate)とを体積比3:7で含む非水溶媒の混合物に、LiPF6を1mol/Lの濃度で溶解させた。得られた溶液100重量部あたりにビニレンカーボネート(VC:vinylene carbonate)を3重量部添加し、非水電解質を得た。
以下の要領で円筒型電池を作製した。
負極集電体の第1辺から2mm,18mmおよび34mm離れた位置において負極リードをニッケル箔に溶接させたこと以外は、実施例1と同様にしてリチウムイオン二次電池を作製した。
負極集電体の第1辺から3mm,18.7mmおよび34.3mm離れた位置において負極リードをニッケル箔に溶接させたこと以外は、実施例1と同様にしてリチウムイオン二次電池を作製した。
負極集電体の第1辺から4mm,19.3mmおよび34.7mm離れた位置において負極リードをニッケル箔に溶接させたこと以外は、実施例1と同様にしてリチウムイオン二次電池を作製した。
負極集電体の第1辺から5mm,20mmおよび35mm離れた位置において負極リードをニッケル箔に溶接させたこと以外は、実施例1と同様にしてリチウムイオン二次電池を作製した。
負極集電体の第1辺から8mm,22mmおよび36mm離れた位置において負極リードをニッケル箔に溶接させたこと以外は、実施例1と同様にしてリチウムイオン二次電池を作製した。
負極集電体の第1辺から10mm,23.3mmおよび36.7mm離れた位置において負極リードをニッケル箔に溶接させたこと以外は、実施例1と同様にしてリチウムイオン二次電池を作製した。
負極集電体の第1辺から15mm,26.7mmおよび38.3mm離れた位置において負極リードをニッケル箔に溶接させたこと以外は、実施例1と同様にしてリチウムイオン二次電池を作製した。
負極リードと負極集電体とを溶接させる際に使用する電極棒の面積(この面積が溶接点の面積となる)を1mm2としたこと以外は、実施例3と同様にしてリチウムイオン二次電池を作製した。
負極リードと負極集電体とを溶接させる際に使用する電極棒の面積(この面積が溶接点の面積となる)を1.7mm2としたこと以外は、実施例3と同様にしてリチウムイオン二次電池を作製した。
負極リードと負極集電体とを溶接させる際に使用する電極棒の面積(この面積が溶接点の面積となる)を2mm2としたこと以外は、実施例3と同様にしてリチウムイオン二次電池を作製した。
負極リードと負極集電体とを溶接させる際に使用する電極棒の面積(この面積が溶接点の面積となる)を2.5mm2としたこと以外は、実施例3と同様にしてリチウムイオン二次電池を作製した。
−リチウムイオン二次電池の評価方法−
上記実施例1〜9および比較例1〜3の電池に関して、以下の評価を行った。
定電圧充電:充電電圧値4.2V、充電終止電流100mA
定電流放電:放電電流値2200mA、放電終止電圧3V
その後、20℃環境下において、外部回路に約5mΩの抵抗を介してこの電池の正負極端子間を短絡させた。そして、短絡を発生させてから3秒後の電池温度を測定した。
1A 正極集電体
1B 正極活物質層
2 負極
2A 負極集電体
2B 負極活物質層
3 セパレータ
4 電極群
5 正極リード
6 負極リード
7 上部絶縁板
8 下部絶縁板
9 封口板
10 電池ケース
11 露出部分
11a 第1の辺
21 露出部分
21a 第1の辺
101 第1溶接点
102 第2溶接点
103 第3溶接点
201 第1溶接点
202 第2溶接点
203 第3溶接点
Claims (8)
- 正極と負極とが多孔質絶縁層を介して捲回または積層されて形成された電極群が、電解液とともに電池ケースに封入された電池であって、
前記正極および前記負極の少なくとも一方は、集電体と、前記集電体の表面の一部分を露出するように前記集電体の前記表面上に設けられた活物質層とを有し、
前記集電体の前記表面のうち前記活物質層から露出された露出部分には、リードが電気的に接続されており、
前記リードは、前記露出部分を構成する一辺である第1の辺を跨ぐように前記露出部分から前記集電体の外へ延びるように配置されており、前記第1の辺に近接する位置において前記露出部分に溶接され、
前記リードは、3箇所以上において、前記露出部分に溶接されており、
前記リードと前記集電体との溶接点は、前記リードの長手方向において互いに間隔を開けて配置されており、
前記溶接点のうち前記第1の辺の最も近くに位置する第1溶接点と、前記第1溶接点の隣りに位置する第2溶接点との間隔は、それ以外の隣り合う前記溶接点間の間隔よりも大きいことを特徴とする電池。 - 前記リードは、前記第1の辺から5mm以下離れた位置において、前記露出部分に溶接されていることを特徴とする請求項1に記載の電池。
- 前記リードは、前記第1の辺から0.1mm以上3mm以下離れた位置において、前記露出部分に溶接されていることを特徴とする請求項2に記載の電池。
- 前記リードは、2箇所以上において、前記露出部分に溶接されており、
前記溶接点のうち前記第1の辺の最も近くに位置する溶接点の面積は、それ以外の前記溶接点の面積よりも大きいことを特徴とする請求項1から3の何れか一つに記載の電池。 - 前記溶接点のうち前記第1の辺の最も近くに位置する溶接点の面積は、2mm2以上であることを特徴とする請求項4に記載の電池。
- 前記第1の辺は、前記集電体の長手方向に延びており、
前記リードのうち前記露出部分に当接された部分の長さは、前記集電体の幅方向における長さの1/3以下であることを特徴とする請求項1から5の何れか一つに記載の電池。 - 前記リードは、ニッケルからなることを特徴とする請求項1から6の何れか一つに記載の電池。
- リチウムイオン二次電池であることを特徴とする請求項1から7の何れか一つに記載の電池。
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JP2008318532A JP5420888B2 (ja) | 2008-12-15 | 2008-12-15 | 電池 |
CN2009801012643A CN101983446A (zh) | 2008-12-15 | 2009-11-05 | 电池 |
PCT/JP2009/005875 WO2010070805A1 (ja) | 2008-12-15 | 2009-11-05 | 電池 |
US12/747,752 US20110052971A1 (en) | 2008-12-15 | 2009-11-05 | Battery |
KR1020107017470A KR20100114515A (ko) | 2008-12-15 | 2009-11-05 | 전지 |
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KR20180028933A (ko) * | 2016-09-09 | 2018-03-19 | 도요타 지도샤(주) | 밀폐형 이차 전지 |
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JP2014013647A (ja) * | 2010-10-20 | 2014-01-23 | Sanyo Electric Co Ltd | 非水電解質二次電池 |
JP6173692B2 (ja) | 2010-12-28 | 2017-08-02 | 三洋電機株式会社 | 非水電解質二次電池 |
JP5931643B2 (ja) * | 2012-08-09 | 2016-06-08 | 三洋電機株式会社 | 非水電解質二次電池及びその製造方法 |
JP6137088B2 (ja) * | 2014-08-29 | 2017-05-31 | トヨタ自動車株式会社 | リチウムイオン電池用正極活物質層の製造方法、及びリチウムイオン電池用正極活物質層 |
US9666514B2 (en) * | 2015-04-14 | 2017-05-30 | Invensas Corporation | High performance compliant substrate |
WO2016174811A1 (ja) * | 2015-04-27 | 2016-11-03 | 三洋電機株式会社 | 円筒形電池、並びにそれに用いる集電部材及びその製造方法 |
CN205985173U (zh) * | 2016-09-21 | 2017-02-22 | 东莞新能源科技有限公司 | 极耳结构和电池 |
EP3933966A4 (en) * | 2019-02-28 | 2022-06-08 | SANYO Electric Co., Ltd. | SECONDARY BATTERY WITH ANHYDROUS ELECTROLYTE |
CN111584774B (zh) * | 2020-06-15 | 2022-09-02 | 韩旭峰 | 一种安全无明火磷酸铁锂电池 |
CN216354302U (zh) * | 2021-12-06 | 2022-04-19 | 珠海冠宇电池股份有限公司 | 极片及电池 |
CN114883517A (zh) * | 2022-06-07 | 2022-08-09 | 江门市宏力能源有限公司 | 一种提高大电流放电容量的电池极片制备方法 |
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JPH11167929A (ja) * | 1997-12-04 | 1999-06-22 | Gs Merukotec Kk | 角形電池 |
JP2002008623A (ja) * | 2000-06-19 | 2002-01-11 | Matsushita Electric Ind Co Ltd | 電 池 |
JPWO2004068625A1 (ja) * | 2003-01-31 | 2006-05-25 | 株式会社ユアサコーポレーション | 密閉形アルカリ蓄電池と、その電極構造、充電方法及び密閉形アルカリ蓄電池用充電器 |
JP5032737B2 (ja) * | 2004-06-14 | 2012-09-26 | パナソニック株式会社 | 電気化学素子 |
JP2008027831A (ja) * | 2006-07-25 | 2008-02-07 | Matsushita Electric Ind Co Ltd | 電池 |
-
2008
- 2008-12-15 JP JP2008318532A patent/JP5420888B2/ja not_active Expired - Fee Related
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2009
- 2009-11-05 KR KR1020107017470A patent/KR20100114515A/ko not_active IP Right Cessation
- 2009-11-05 CN CN2009801012643A patent/CN101983446A/zh active Pending
- 2009-11-05 US US12/747,752 patent/US20110052971A1/en not_active Abandoned
- 2009-11-05 WO PCT/JP2009/005875 patent/WO2010070805A1/ja active Application Filing
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101777448B1 (ko) | 2014-12-23 | 2017-09-11 | 주식회사 엘지화학 | 2차 전지 |
KR20180028933A (ko) * | 2016-09-09 | 2018-03-19 | 도요타 지도샤(주) | 밀폐형 이차 전지 |
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JP2010140862A (ja) | 2010-06-24 |
KR20100114515A (ko) | 2010-10-25 |
WO2010070805A1 (ja) | 2010-06-24 |
CN101983446A (zh) | 2011-03-02 |
US20110052971A1 (en) | 2011-03-03 |
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