JP2020145128A - 電池 - Google Patents
電池 Download PDFInfo
- Publication number
- JP2020145128A JP2020145128A JP2019042199A JP2019042199A JP2020145128A JP 2020145128 A JP2020145128 A JP 2020145128A JP 2019042199 A JP2019042199 A JP 2019042199A JP 2019042199 A JP2019042199 A JP 2019042199A JP 2020145128 A JP2020145128 A JP 2020145128A
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- 239000011149 active material Substances 0.000 claims abstract description 173
- 239000002245 particle Substances 0.000 claims abstract description 74
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 26
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 26
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 26
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 17
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 15
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 13
- 239000011777 magnesium Substances 0.000 claims abstract description 13
- 229910052788 barium Inorganic materials 0.000 claims abstract description 12
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 12
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 12
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 6
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 46
- 239000000463 material Substances 0.000 claims description 35
- 239000008151 electrolyte solution Substances 0.000 claims description 15
- 239000004760 aramid Substances 0.000 claims description 10
- 229920003235 aromatic polyamide Polymers 0.000 claims description 10
- 150000003459 sulfonic acid esters Chemical class 0.000 claims description 7
- 125000000542 sulfonic acid group Chemical group 0.000 claims description 3
- 239000012212 insulator Substances 0.000 abstract 3
- 229910014724 LiaNibM1-bO2 Inorganic materials 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 191
- 229920005989 resin Polymers 0.000 description 32
- 239000011347 resin Substances 0.000 description 32
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 28
- -1 polyethylene Polymers 0.000 description 28
- 239000007789 gas Substances 0.000 description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 17
- 239000011230 binding agent Substances 0.000 description 17
- 239000002904 solvent Substances 0.000 description 16
- 239000001569 carbon dioxide Substances 0.000 description 14
- 229910002092 carbon dioxide Inorganic materials 0.000 description 14
- 239000002131 composite material Substances 0.000 description 14
- 239000002002 slurry Substances 0.000 description 14
- 229910002804 graphite Inorganic materials 0.000 description 13
- 239000010439 graphite Substances 0.000 description 13
- 239000010936 titanium Substances 0.000 description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 12
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 11
- 239000004698 Polyethylene Substances 0.000 description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 10
- 229920000573 polyethylene Polymers 0.000 description 10
- 239000011734 sodium Substances 0.000 description 10
- 239000002033 PVDF binder Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 8
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 8
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 7
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 7
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 7
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 7
- 229910017052 cobalt Inorganic materials 0.000 description 7
- 239000010941 cobalt Substances 0.000 description 7
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 7
- 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 7
- 239000012752 auxiliary agent Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000011888 foil Substances 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 229920006015 heat resistant resin Polymers 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229910021382 natural graphite Inorganic materials 0.000 description 5
- 239000003960 organic solvent Substances 0.000 description 5
- 229920001187 thermosetting polymer Polymers 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 229910003002 lithium salt Inorganic materials 0.000 description 4
- 159000000002 lithium salts Chemical class 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- 239000012982 microporous membrane Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 150000004651 carbonic acid esters Chemical group 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000011256 inorganic filler Substances 0.000 description 3
- 229910003475 inorganic filler Inorganic materials 0.000 description 3
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000011255 nonaqueous electrolyte Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229920003048 styrene butadiene rubber Polymers 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
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- 229910015044 LiB Inorganic materials 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- OHOIHSTWKIMQNC-UHFFFAOYSA-N [Li].[P]=O Chemical class [Li].[P]=O OHOIHSTWKIMQNC-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 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
- 229910052808 lithium carbonate Inorganic materials 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- RSNHXDVSISOZOB-UHFFFAOYSA-N lithium nickel Chemical compound [Li].[Ni] RSNHXDVSISOZOB-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- TZIHFWKZFHZASV-UHFFFAOYSA-N methyl formate Chemical compound COC=O TZIHFWKZFHZASV-UHFFFAOYSA-N 0.000 description 2
- 238000006864 oxidative decomposition reaction Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- PYOKUURKVVELLB-UHFFFAOYSA-N trimethyl orthoformate Chemical compound COC(OC)OC PYOKUURKVVELLB-UHFFFAOYSA-N 0.000 description 2
- 125000001989 1,3-phenylene group Chemical group [H]C1=C([H])C([*:1])=C([H])C([*:2])=C1[H] 0.000 description 1
- OIXJTNWUBMSVJM-UHFFFAOYSA-N 2,10-dioxatricyclo[9.2.2.14,8]hexadeca-1(14),4(16),5,7,11(15),12-hexaene-3,9-dione Chemical compound O1C(=O)C(C=2)=CC=CC=2C(=O)OC2=CC=C1C=C2 OIXJTNWUBMSVJM-UHFFFAOYSA-N 0.000 description 1
- IZXIZTKNFFYFOF-UHFFFAOYSA-N 2-Oxazolidone Chemical class O=C1NCCO1 IZXIZTKNFFYFOF-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
- XKTYXVDYIKIYJP-UHFFFAOYSA-N 3h-dioxole Chemical compound C1OOC=C1 XKTYXVDYIKIYJP-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
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004953 Aliphatic polyamide Substances 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical compound C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-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
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 229910007754 Li1.01(Ni0.80Co0.15Al0.05)O2 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
- 229910013372 LiC 4 Inorganic materials 0.000 description 1
- 229910013684 LiClO 4 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
- 239000004677 Nylon Substances 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 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
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229920003231 aliphatic polyamide Polymers 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- CKFRRHLHAJZIIN-UHFFFAOYSA-N cobalt lithium Chemical compound [Li].[Co] CKFRRHLHAJZIIN-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002482 conductive additive Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 229910003472 fullerene Inorganic materials 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- QZUPTXGVPYNUIT-UHFFFAOYSA-N isophthalamide Chemical compound NC(=O)C1=CC=CC(C(N)=O)=C1 QZUPTXGVPYNUIT-UHFFFAOYSA-N 0.000 description 1
- 239000003273 ketjen black Substances 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- WABPQHHGFIMREM-NOHWODKXSA-N lead-200 Chemical compound [200Pb] WABPQHHGFIMREM-NOHWODKXSA-N 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 239000002116 nanohorn Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001955 polyphenylene ether Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000011163 secondary particle Substances 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical class O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 150000007984 tetrahydrofuranes Chemical class 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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- 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
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- H01M10/00—Secondary cells; Manufacture thereof
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- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
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- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
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Abstract
Description
第1面と、前記第1面の反対側の第2面と、を有する集電体と、前記集電体の前記第1面上に位置する第1活物質層と、を含む正極と、
前記正極の前記第1活物質層に対向する第1絶縁層と、
を含み、
前記第1活物質層は、LiaNibM1−bO2(0.95≦a≦1.05、b≧0.50、Mは、Co、Mn、Al、Ti、Zr、Na、Ba及びMgの中から選ばれる一種以上の元素である。)によって示される活物質粒子を含み、
前記第1絶縁層は、水酸化マグネシウム粒子を含み、
前記水酸化マグネシウム粒子の目付及び比表面積の積は、前記活物質粒子の目付及び比表面積の積の0.7倍以上である、電池が提供される。
リチウム−ニッケル複合酸化物;
リチウム−ニッケル−A1複合酸化物(A1は、コバルト、マンガン、アルミニウム、チタン、ジルコニウム、ナトリウム、バリウム及びマグネシウムのうちの一である。);
リチウム−ニッケル−B1−B2複合酸化物(B1及びB2のそれぞれは、コバルト、マンガン、アルミニウム、チタン、ジルコニウム、ナトリウム、バリウム及びマグネシウムのうちの一である。B1及びB2は、互いに異なる。);
リチウム−ニッケル−C1−C2−C3複合酸化物(C1〜C3のそれぞれは、コバルト、マンガン、アルミニウム、チタン、ジルコニウム、ナトリウム、バリウム及びマグネシウムのうちの一である。C1〜C3は、互いに異なる。);
リチウム−ニッケル−D1−D2−D3−D4複合酸化物(D1〜D4のそれぞれは、コバルト、マンガン、アルミニウム、チタン、ジルコニウム、ナトリウム、バリウム及びマグネシウムのうちの一である。D1〜C4は、互いに異なる。);
リチウム−ニッケル−E1−E2−E3−E4−E5複合酸化物(E1〜E5のそれぞれは、コバルト、マンガン、アルミニウム、チタン、ジルコニウム、ナトリウム、バリウム及びマグネシウムのうちの一である。E1〜E5は、互いに異なる。);
リチウム−ニッケル−F1−F2−F3−F4−F5−F6複合酸化物(F1〜F6のそれぞれは、コバルト、マンガン、アルミニウム、チタン、ジルコニウム、ナトリウム、バリウム及びマグネシウムのうちの一である。F1〜F6は、互いに異なる。);
リチウム−ニッケル−G1−G2−G3−G4−G5−G6−G7複合酸化物(G1〜G7のそれぞれは、コバルト、マンガン、アルミニウム、チタン、ジルコニウム、ナトリウム、バリウム及びマグネシウムのうちの一である。G1〜G7は、互いに異なる。);又は
リチウム−ニッケル−コバルト−マンガン−アルミニウム−チタン−ジルコニウム−ナトリウム−バリウム−マグネシウム複合酸化物
である。LiaNibM1−bO2の組成比aは、例えば、0.95≦a≦1.05である。LiaNibM1−bO2の組成比bは、例えば電池10のエネルギー密度に応じて適宜決定することができる。電池10のエネルギー密度は、組成比bが大きい高くなる。組成比bは、例えば、b≧0.50、好ましくはb≧0.80である。他の例において、活物質層120(第1活物質層122及び第2活物質層124)に含まれる活物質は、リチウム−コバルト複合酸化物、リチウム−マンガン複合酸化物等のリチウム及び遷移金属の複合酸化物;TiS2、FeS、MoS2等の遷移金属硫化物;MnO、V2O5、V6O13、TiO2等の遷移金属酸化物、オリビン型リチウムリン酸化物等であってもよい。オリビン型リチウムリン酸化物は、例えば、Mn、Cr、Co、Cu、Ni、V、Mo、Ti、Zn、Al、Ga、Mg、B、Nb及びFeからなる群のうちの少なくとも1種の元素と、リチウムと、リンと、酸素とを含んでいる。これらの化合物は、その特性を向上させるために一部の元素を部分的に他の元素に置換したものであってもよい。これらの物質は、単独で使用されてもよいし、又は組み合わせて使用されてもよい。
以下のようにして電池10を製造した。
活物質粒子:94.0質量部のリチウムニッケル含有複合酸化物(化学式:Li1.01(Ni0.80Co0.15Al0.05)O2)(活物質粒子は、活物質粒子の総質量100質量部に対して0.43質量部の水酸化リチウム(LiOH)を含んでいる。)
導電助剤:2.0質量部の球状黒鉛及び1.0質量部の鱗片状黒鉛
バインダー樹脂:3.0質量部のポリフッ化ビニリデン(PVDF)
次いで、このスラリーをアルミニウム箔(集電体110)の両面(第1面112及び第2面114)上に塗布し、スラリーを乾燥させ、プレスを実施して、活物質層120(第1活物質層122及び第2活物質層124)を形成した。集電体110、第1活物質層122及び第2活物質層124の詳細は、以下のとおりである。
(集電体110)
厚さ:15μm
(第1活物質層122)
密度:3.35g/cm3
厚さ:36.6μm
活物質粒子の目付A1:115.1g/m2
活物質粒子の比表面積S1m:0.25m2/g
(第2活物質層124)
密度:3.35g/cm3
厚さ:36.6μm
活物質粒子の目付A1:115.1g/m2
活物質粒子の比表面積S1m:0.25m2/g
活物質:77.36質量部の天然黒鉛(平均粒径:16.0μm)及び19.34質量部の天然黒鉛(平均粒径:10.5μm)
導電助剤:0.3質量部の球状黒鉛
バインダー樹脂:2.0質量部のスチレン・ブタジエンゴム(SBR)
増粘剤:1.0質量部のカルボキシメチルセルロース(CMC)
次いで、このスラリーを銅箔(集電体210)の両面(第1面212及び第2面214)上に塗布し、スラリーを乾燥させ、プレスを実施して、活物質層220(第1活物質層222及び第2活物質層224)を形成した。集電体210、第1活物質層222及び第2活物質層224の詳細は、以下のとおりである。
(集電体210)
厚さ:8μm
(第1活物質層222)
密度:1.55g/cm3
厚さ:50.0μm
(第2活物質層224)
密度:1.55g/cm3
厚さ:50.0μm
無機フィラー:75質量部の水酸化マグネシウム
樹脂:25質量部のメタ系芳香族ポリアミド
次いで、この溶液をポリエチレンフィルム(基材310)の両面(第1面312及び第2面314)上に塗布して絶縁層320(第1絶縁層322及び第2絶縁層324)を形成した。基材310、第1絶縁層322及び第2絶縁層324の詳細は、以下のとおりである。
(基材310)
厚さ:6.0μm
(第1絶縁層322)
厚さ:8.0μm
水酸化マグネシウム粒子の目付A2:4.8g/m2
水酸化マグネシウム粒子の比表面積S2m:6.1m2/g
(第2絶縁層324)
厚さ:8.0μm
水酸化マグネシウム粒子の目付A2:4.8g/m2
水酸化マグネシウム粒子の比表面積S2m:6.1m2/g
支持塩:LiPF6
溶媒:30体積%のエチレンカーボネート(EC)、60体積%のジエチルカーボネート(DEC)及び10体積%のメチルエチルカーボネート(MEC)
添加剤:環状スルホン酸エステル(環状スルホン酸エステルは、第1活物質層122又は第2活物質層124の活物質粒子の総質量100質量部に対して0.27質量部のスルホン酸基を含んでいる。)、電解液の総質量100質量部に対して1.5質量部のビニレンカーボネート及び電解液の総質量100質量部に対して1.0質量部のフルオロエチレンカーボネート
○:Vcharge/V0×100が115%未満であった
×:Vcharge/V0×100が115%以上であった
○:C500/C10×100が90%以上であった
×:C500/C10×100が90%未満であった
12 積層体
100 正極
110 集電体
112 第1面
114 第2面
120 活物質層
122 第1活物質層
124 第2活物質層
130 第1リード
200 負極
210 集電体
212 第1面
214 第2面
220 活物質層
222 第1活物質層
224 第2活物質層
230 第2リード
300 セパレータ
310 基材
312 第1面
314 第2面
320 絶縁層
322 第1絶縁層
324 第2絶縁層
400 外装材
Claims (6)
- 第1面と、前記第1面の反対側の第2面と、を有する集電体と、前記集電体の前記第1面上に位置する第1活物質層と、を含む正極と、
前記正極の前記第1活物質層に対向する第1絶縁層と、
を含み、
前記第1活物質層は、LiaNibM1−bO2(0.95≦a≦1.05、b≧0.50、Mは、Co、Mn、Al、Ti、Zr、Na、Ba及びMgの中から選ばれる一種以上の元素である。)によって示される活物質粒子を含み、
前記第1絶縁層は、水酸化マグネシウム粒子を含み、
前記水酸化マグネシウム粒子の目付及び比表面積の積は、前記活物質粒子の目付及び比表面積の積の0.7倍以上である、電池。 - 請求項1に記載の電池において、
前記正極に対向するセパレータと、
前記正極とは反対側から前記セパレータに対向する負極と、
をさらに含み、
前記セパレータは、前記第1絶縁層と、前記負極に対向する第2絶縁層と、前記第1絶縁層及び前記第2絶縁層の間に位置する基材と、を含む、電池。 - 請求項1又は2に記載の電池において、
前記水酸化マグネシウム粒子は、4.0m2/g以上8.0m2/g以下の比表面積を有する、電池。 - 請求項1から3までのいずれか一項に記載の電池において、
前記活物質粒子は、前記活物質粒子の総質量100質量部に対して0.52質量部以上の水酸化リチウムをさらに含む、電池。 - 請求項1から4までのいずれか一項に記載の電池において、
スルホン酸エステルを含む電解液をさらに含み、
前記スルホン酸エステルは、前記水酸化マグネシウム粒子の総質量100質量部に対して5.0質量部以上のスルホン酸基を含む、電池。 - 請求項1から5までのいずれか一項に記載の電池において、
前記第1絶縁層は、芳香族ポリアミドをさらに含む、電池。
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JP2011108516A (ja) * | 2009-11-18 | 2011-06-02 | Teijin Ltd | 非水系二次電池用電極シート及びそれを用いた非水系二次電池 |
JP2011108444A (ja) * | 2009-11-16 | 2011-06-02 | Teijin Ltd | 非水系二次電池用セパレータおよび非水系二次電池 |
WO2018221709A1 (ja) * | 2017-06-02 | 2018-12-06 | 協和化学工業株式会社 | 非水系二次電池用セパレータに供される水酸化マグネシウム、非水系二次電池用セパレータおよび非水系二次電池 |
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JP2011108444A (ja) * | 2009-11-16 | 2011-06-02 | Teijin Ltd | 非水系二次電池用セパレータおよび非水系二次電池 |
JP2011108516A (ja) * | 2009-11-18 | 2011-06-02 | Teijin Ltd | 非水系二次電池用電極シート及びそれを用いた非水系二次電池 |
WO2018221709A1 (ja) * | 2017-06-02 | 2018-12-06 | 協和化学工業株式会社 | 非水系二次電池用セパレータに供される水酸化マグネシウム、非水系二次電池用セパレータおよび非水系二次電池 |
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