JPWO2017047015A1 - 電池 - Google Patents
電池 Download PDFInfo
- Publication number
- JPWO2017047015A1 JPWO2017047015A1 JP2017540473A JP2017540473A JPWO2017047015A1 JP WO2017047015 A1 JPWO2017047015 A1 JP WO2017047015A1 JP 2017540473 A JP2017540473 A JP 2017540473A JP 2017540473 A JP2017540473 A JP 2017540473A JP WO2017047015 A1 JPWO2017047015 A1 JP WO2017047015A1
- Authority
- JP
- Japan
- Prior art keywords
- solid electrolyte
- positive electrode
- active material
- electrode active
- battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007784 solid electrolyte Substances 0.000 claims abstract description 76
- 239000007774 positive electrode material Substances 0.000 claims abstract description 59
- 150000001875 compounds Chemical class 0.000 claims abstract description 40
- 239000000203 mixture Substances 0.000 claims abstract description 37
- 239000013078 crystal Substances 0.000 claims abstract description 12
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 10
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 229910052796 boron Inorganic materials 0.000 claims abstract description 8
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 8
- 229910052718 tin Inorganic materials 0.000 claims abstract description 8
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 7
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 7
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 7
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 7
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 7
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 7
- 229910052772 Samarium Inorganic materials 0.000 claims abstract description 6
- 229910052769 Ytterbium Inorganic materials 0.000 claims abstract description 6
- 229910052788 barium Inorganic materials 0.000 claims abstract description 6
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 6
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 6
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 6
- 229910052712 strontium Inorganic materials 0.000 claims abstract description 6
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 6
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 6
- 229910052744 lithium Inorganic materials 0.000 claims description 18
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 12
- 229910001416 lithium ion Inorganic materials 0.000 claims description 12
- 239000007773 negative electrode material Substances 0.000 claims description 12
- 239000002203 sulfidic glass Substances 0.000 claims description 8
- 229910018130 Li 2 S-P 2 S 5 Inorganic materials 0.000 claims description 7
- 229910013641 LiNbO 3 Inorganic materials 0.000 claims description 7
- 239000002994 raw material Substances 0.000 description 19
- -1 fluoroethyl methyl carbonate Chemical compound 0.000 description 17
- 229910003002 lithium salt Inorganic materials 0.000 description 15
- 159000000002 lithium salts Chemical class 0.000 description 15
- 238000000034 method Methods 0.000 description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 12
- 239000002904 solvent Substances 0.000 description 12
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 9
- 238000006467 substitution reaction Methods 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 239000011572 manganese Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052786 argon Inorganic materials 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000007769 metal material Substances 0.000 description 6
- 239000004570 mortar (masonry) Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 150000003606 tin compounds Chemical class 0.000 description 6
- 229910014689 LiMnO Inorganic materials 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000003125 aqueous solvent Substances 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 5
- 239000011575 calcium Substances 0.000 description 5
- 239000011651 chromium Substances 0.000 description 5
- 229910052731 fluorine Inorganic materials 0.000 description 5
- 239000011777 magnesium Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000010955 niobium Substances 0.000 description 5
- 239000002243 precursor Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 235000002639 sodium chloride Nutrition 0.000 description 5
- 229910052723 transition metal Inorganic materials 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 229920002845 Poly(methacrylic acid) Polymers 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 4
- 239000002608 ionic liquid Substances 0.000 description 4
- 239000011255 nonaqueous electrolyte Substances 0.000 description 4
- 150000003839 salts Chemical group 0.000 description 4
- 150000003377 silicon compounds Chemical class 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 229920002125 Sokalan® Polymers 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229920001940 conductive polymer Chemical class 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 239000002241 glass-ceramic Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004584 polyacrylic acid Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- 229910000314 transition metal oxide Inorganic materials 0.000 description 3
- 150000003624 transition metals Chemical class 0.000 description 3
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- SBLRHMKNNHXPHG-UHFFFAOYSA-N 4-fluoro-1,3-dioxolan-2-one Chemical compound FC1COC(=O)O1 SBLRHMKNNHXPHG-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- 239000002227 LISICON Substances 0.000 description 2
- 229910018068 Li 2 O Inorganic materials 0.000 description 2
- 229910018091 Li 2 S Inorganic materials 0.000 description 2
- 229910018119 Li 3 PO 4 Inorganic materials 0.000 description 2
- 229910015015 LiAsF 6 Inorganic materials 0.000 description 2
- 229910013063 LiBF 4 Inorganic materials 0.000 description 2
- 229910013375 LiC Inorganic materials 0.000 description 2
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 2
- 229910013528 LiN(SO2 CF3)2 Inorganic materials 0.000 description 2
- 229910013385 LiN(SO2C2F5)2 Inorganic materials 0.000 description 2
- 229910013392 LiN(SO2CF3)(SO2C4F9) Inorganic materials 0.000 description 2
- 229910002995 LiNi0.8Co0.15Al0.05O2 Inorganic materials 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- 229910012424 LiSO 3 Inorganic materials 0.000 description 2
- 229910012513 LiSbF 6 Inorganic materials 0.000 description 2
- 229910012465 LiTi Inorganic materials 0.000 description 2
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 2
- 239000002228 NASICON Substances 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 229910004283 SiO 4 Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-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
- 238000010521 absorption reaction Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910021383 artificial graphite Inorganic materials 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 150000005678 chain carbonates Chemical class 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 150000005676 cyclic carbonates Chemical class 0.000 description 2
- 150000004292 cyclic ethers Chemical class 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 125000004494 ethyl ester group Chemical group 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000002223 garnet Substances 0.000 description 2
- 239000011245 gel electrolyte Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002905 metal composite material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- MHAIQPNJLRLFLO-UHFFFAOYSA-N methyl 2-fluoropropanoate Chemical compound COC(=O)C(C)F MHAIQPNJLRLFLO-UHFFFAOYSA-N 0.000 description 2
- 150000004702 methyl esters Chemical class 0.000 description 2
- PYLWMHQQBFSUBP-UHFFFAOYSA-N monofluorobenzene Chemical compound FC1=CC=CC=C1 PYLWMHQQBFSUBP-UHFFFAOYSA-N 0.000 description 2
- 229910021382 natural graphite Inorganic materials 0.000 description 2
- ZTILUDNICMILKJ-UHFFFAOYSA-N niobium(v) ethoxide Chemical compound CCO[Nb](OCC)(OCC)(OCC)OCC ZTILUDNICMILKJ-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 238000000634 powder X-ray diffraction Methods 0.000 description 2
- 238000006479 redox reaction Methods 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000010532 solid phase synthesis reaction Methods 0.000 description 2
- 238000004611 spectroscopical analysis Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 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
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 1
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- 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
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 229910017008 AsF 6 Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 229910018071 Li 2 O 2 Inorganic materials 0.000 description 1
- 229910018111 Li 2 S-B 2 S 3 Inorganic materials 0.000 description 1
- 229910018127 Li 2 S-GeS 2 Inorganic materials 0.000 description 1
- 229910018133 Li 2 S-SiS 2 Inorganic materials 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910019021 Mg 2 Sn Inorganic materials 0.000 description 1
- 101100513612 Microdochium nivale MnCO gene Proteins 0.000 description 1
- 229910003174 MnOOH Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
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- 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
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 229910005790 SnSiO Inorganic materials 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
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- 239000010941 cobalt Substances 0.000 description 1
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- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 1
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- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 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
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
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- 239000007858 starting material Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 125000005207 tetraalkylammonium group Chemical group 0.000 description 1
- 125000005497 tetraalkylphosphonium group Chemical group 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 229910021561 transition metal fluoride Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000012856 weighed raw material Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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Abstract
Description
LixMeyOαFβ・・・式(1)
図1は、実施の形態1における電池1000の概略構成を示す図(断面図)である。
LixMeyOαFβ・・・式(1)
かつ、下記の条件、
1.7≦x≦2.2、
0.8≦y≦1.3、
1≦α≦2.5、
0.5≦β≦2、
を満たす。
以下に、実施の形態1の正極活物質10に含まれる上述の化合物の製造方法の一例が、説明される。
以下、本開示の実施の形態2が、図面を参照しながら、説明される。なお、上述の実施の形態1と重複する説明は、適宜、省略される。
[正極活物質の作製]
LiFとLiMnO2をLiF/LiMnO2=1.0/1.0モル比でそれぞれ秤量した。
アルゴングローブボックス内で、金属Li(本荘ケミカル製)0.06mgとペンタエトキシニオブ(高純度化学製)2.87mgとを、超脱水エタノール(和光純薬製)0.2mLに溶解して、被覆溶液を作製した。
アルゴングローブボックス内で、Li2SとP2S5とを、モル比でLi2S:P2S5=80:20となるように、秤量した。
アルゴングローブボックス内で、ガラスセラミックス状の固体電解質であるLi2S−P2S5と、酸化物固体電解質を被覆した正極活物質とを、80:20wt%の比率で秤量した。
絶縁性外筒の中で、ガラスセラミックス状の固体電解質であるLi2S−P2S580mg、正極合剤10mg、ステンレス鋼集電体、の順に積層した。
作製した二次電池を用いて、以下の条件で、充放電試験が実施された。
また、二次電池を25℃の恒温槽に配置しての充放電試験により、放電容量比率を求めた。
酸化物固体電解質による正極活物質の被覆を実施しなかったこと以外は、上述の実施例1の方法と同様に実施した。
下記の酸化物固体電解質による正極活物質の被覆および充放電試験以外の項目は、上述の実施例1の方法と同様に実施した。
アルゴングローブボックス内で、金属Li(本荘ケミカル製)0.13mgとペンタエトキシニオブ(高純度化学製)7.73mgとを、超脱水エタノール(和光純薬製)0.1mLに溶解して、被覆溶液を作製した。
作製した二次電池を用いて、以下の条件で、充放電試験が実施された。
以上の結果は、下記の表1に示される。
100 正極
101 正極集電体
102 正極活物質層
20 負極活物質
200 負極
201 負極集電体
202 負極活物質層
30 固体電解質
300 固体電解質層
40 酸化物固体電解質
1000 電池
2000 電池
Claims (7)
- 正極活物質を含む正極と、
負極と、
固体電解質と、
を備え、
前記正極活物質は、空間群FM3−Mに属する結晶構造を有する下記の組成式(1)により表される化合物を含み、
LixMeyOαFβ・・・式(1)、
ここで、前記Meは、Mn、Co、Ni、Fe、Al、B、Ce、Si、Zr、Nb、Pr、Ti、W、Ge、Mo、Sn、Bi、Cu、Mg、Ca、Ba、Sr、Y、Zn、Ga、Er、La、Sm、Yb、V、Crからなる群より選択される一種または二種以上の元素であり、
かつ、下記の条件、
1.7≦x≦2.2、
0.8≦y≦1.3、
1≦α≦2.5、
0.5≦β≦2、
を満たす、
電池。 - 前記負極は、リチウムイオンを吸蔵及び放出できる負極活物質またはリチウム金属を含み、
前記固体電解質は、リチウムイオン伝導性の固体電解質である、
請求項1に記載の電池。 - 前記固体電解質は、硫化物固体電解質である、
請求項1または2に記載の電池。 - 前記硫化物固体電解質は、Li2S−P2S5である、
請求項3に記載の電池。 - 前記正極活物質は、酸化物固体電解質で被覆されている、
請求項1から4のいずれかに記載の電池。 - 前記酸化物固体電解質は、LiNbO3である、
請求項5に記載の電池。 - 前記化合物は、空間群FM3−Mに属する結晶構造を有するLi2MnO2Fである、請求項1から6のいずれかに記載の電池。
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US20200411850A1 (en) | 2020-12-31 |
CN107431242B (zh) | 2021-03-23 |
US20180076452A1 (en) | 2018-03-15 |
WO2017047015A1 (ja) | 2017-03-23 |
CN107431242A (zh) | 2017-12-01 |
JP6861399B2 (ja) | 2021-04-21 |
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