WO2006095507A1 - 電気化学エネルギー蓄積デバイス用非水電解液及びそれを用いた電気化学エネルギー蓄積デバイス - Google Patents
電気化学エネルギー蓄積デバイス用非水電解液及びそれを用いた電気化学エネルギー蓄積デバイス Download PDFInfo
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- WO2006095507A1 WO2006095507A1 PCT/JP2006/301484 JP2006301484W WO2006095507A1 WO 2006095507 A1 WO2006095507 A1 WO 2006095507A1 JP 2006301484 W JP2006301484 W JP 2006301484W WO 2006095507 A1 WO2006095507 A1 WO 2006095507A1
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- WIPO (PCT)
- Prior art keywords
- ion
- lithium
- quaternary ammonium
- energy storage
- electrochemical energy
- Prior art date
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- 238000012983 electrochemical energy storage Methods 0.000 title claims abstract description 27
- 239000011255 nonaqueous electrolyte Substances 0.000 title claims abstract description 24
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 38
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims abstract description 31
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 25
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 24
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 18
- 125000001453 quaternary ammonium group Chemical group 0.000 claims abstract description 17
- -1 quaternary ammonium salt ion Chemical class 0.000 claims description 73
- 239000003792 electrolyte Substances 0.000 claims description 18
- 229910052744 lithium Inorganic materials 0.000 claims description 18
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 16
- 239000003125 aqueous solvent Substances 0.000 claims description 9
- 150000001768 cations Chemical class 0.000 claims description 8
- YOMFVLRTMZWACQ-UHFFFAOYSA-N ethyltrimethylammonium Chemical compound CC[N+](C)(C)C YOMFVLRTMZWACQ-UHFFFAOYSA-N 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 4
- GSBKRFGXEJLVMI-UHFFFAOYSA-N Nervonyl carnitine Chemical compound CCC[N+](C)(C)C GSBKRFGXEJLVMI-UHFFFAOYSA-N 0.000 claims description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-L Oxalate Chemical compound [O-]C(=O)C([O-])=O MUBZPKHOEPUJKR-UHFFFAOYSA-L 0.000 claims description 3
- 229940063013 borate ion Drugs 0.000 claims description 3
- 150000003949 imides Chemical class 0.000 claims description 3
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical compound C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 claims description 3
- IUNCEDRRUNZACO-UHFFFAOYSA-N butyl(trimethyl)azanium Chemical compound CCCC[N+](C)(C)C IUNCEDRRUNZACO-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 64
- 239000002904 solvent Substances 0.000 abstract description 7
- 230000006866 deterioration Effects 0.000 abstract description 6
- 239000007773 negative electrode material Substances 0.000 abstract description 3
- 150000002500 ions Chemical class 0.000 description 56
- 229910021383 artificial graphite Inorganic materials 0.000 description 25
- 229910002804 graphite Inorganic materials 0.000 description 20
- 239000010439 graphite Substances 0.000 description 20
- 239000010410 layer Substances 0.000 description 20
- 235000012093 Myrtus ugni Nutrition 0.000 description 18
- 244000061461 Tema Species 0.000 description 18
- 238000003780 insertion Methods 0.000 description 18
- 230000037431 insertion Effects 0.000 description 18
- 239000008151 electrolyte solution Substances 0.000 description 16
- QSZMZKBZAYQGRS-UHFFFAOYSA-N lithium;bis(trifluoromethylsulfonyl)azanide Chemical compound [Li+].FC(F)(F)S(=O)(=O)[N-]S(=O)(=O)C(F)(F)F QSZMZKBZAYQGRS-UHFFFAOYSA-N 0.000 description 13
- 229910003473 lithium bis(trifluoromethanesulfonyl)imide Inorganic materials 0.000 description 12
- 150000003839 salts Chemical class 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 150000003863 ammonium salts Chemical class 0.000 description 8
- 125000000217 alkyl group Chemical group 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 7
- KSOCVFUBQIXVDC-FMQUCBEESA-N p-azophenyltrimethylammonium Chemical class C1=CC([N+](C)(C)C)=CC=C1\N=N\C1=CC=C([N+](C)(C)C)C=C1 KSOCVFUBQIXVDC-FMQUCBEESA-N 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 5
- 229910013075 LiBF Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000011888 foil Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 101100029848 Arabidopsis thaliana PIP1-2 gene Proteins 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 101100439696 Medicago sativa CHS4-2 gene Proteins 0.000 description 4
- 239000011149 active material Substances 0.000 description 4
- 150000005676 cyclic carbonates Chemical class 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 3
- 150000005678 chain carbonates Chemical class 0.000 description 3
- 239000006258 conductive agent Substances 0.000 description 3
- 239000011889 copper foil Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- QENJZWZWAWWESF-UHFFFAOYSA-N tri-methylbenzoic acid Natural products CC1=CC(C)=C(C(O)=O)C=C1C QENJZWZWAWWESF-UHFFFAOYSA-N 0.000 description 3
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 229910013188 LiBOB Inorganic materials 0.000 description 2
- 229910013872 LiPF Inorganic materials 0.000 description 2
- 101150058243 Lipf gene Proteins 0.000 description 2
- 239000007983 Tris buffer Substances 0.000 description 2
- 239000006230 acetylene black Substances 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- ACFSQHQYDZIPRL-UHFFFAOYSA-N lithium;bis(1,1,2,2,2-pentafluoroethylsulfonyl)azanide Chemical compound [Li+].FC(F)(F)C(F)(F)S(=O)(=O)[N-]S(=O)(=O)C(F)(F)C(F)(F)F ACFSQHQYDZIPRL-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 150000003457 sulfones Chemical class 0.000 description 2
- XPDWGBQVDMORPB-UHFFFAOYSA-N trifluoromethane acid Natural products FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 description 2
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 description 1
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-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
- XVWXTEGZTKSUQZ-UHFFFAOYSA-N 4-hydroxybutyl hydrogen carbonate Chemical compound OCCCCOC(O)=O XVWXTEGZTKSUQZ-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
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 102100025027 E3 ubiquitin-protein ligase TRIM69 Human genes 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 101000830203 Homo sapiens E3 ubiquitin-protein ligase TRIM69 Proteins 0.000 description 1
- 229910013870 LiPF 6 Inorganic materials 0.000 description 1
- BAVYZALUXZFZLV-UHFFFAOYSA-O Methylammonium ion Chemical compound [NH3+]C BAVYZALUXZFZLV-UHFFFAOYSA-O 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical class CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- PACOTQGTEZMTOT-UHFFFAOYSA-N bis(ethenyl) carbonate Chemical compound C=COC(=O)OC=C PACOTQGTEZMTOT-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000002134 carbon nanofiber Substances 0.000 description 1
- OFXDKOYPVIXNTE-UHFFFAOYSA-N carbonic acid;stilbene Chemical compound OC(O)=O.C=1C=CC=CC=1C=CC1=CC=CC=C1 OFXDKOYPVIXNTE-UHFFFAOYSA-N 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000002180 crystalline carbon material Substances 0.000 description 1
- ROORDVPLFPIABK-UHFFFAOYSA-N diphenyl carbonate Chemical compound C=1C=CC=CC=1OC(=O)OC1=CC=CC=C1 ROORDVPLFPIABK-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- BPFOYPDHLJUICH-UHFFFAOYSA-N ethenyl ethyl carbonate Chemical compound CCOC(=O)OC=C BPFOYPDHLJUICH-UHFFFAOYSA-N 0.000 description 1
- NCHRDVARPJUMRC-UHFFFAOYSA-N ethenyl methyl carbonate Chemical compound COC(=O)OC=C NCHRDVARPJUMRC-UHFFFAOYSA-N 0.000 description 1
- 239000002946 graphitized mesocarbon microbead Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000006343 heptafluoro propyl group Chemical group 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011302 mesophase pitch Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- XWTZFWZIPNGCGO-UHFFFAOYSA-N methoxycarbonyl acetate Chemical compound COC(=O)OC(C)=O XWTZFWZIPNGCGO-UHFFFAOYSA-N 0.000 description 1
- 150000002751 molybdenum Chemical class 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 125000005151 nonafluorobutanesulfonyl group Chemical group FC(C(C(S(=O)(=O)*)(F)F)(F)F)(C(F)(F)F)F 0.000 description 1
- OIIYIFJVTVSNLY-UHFFFAOYSA-A octadecalithium hexaphosphate Chemical compound P(=O)([O-])([O-])[O-].P(=O)([O-])([O-])[O-].P(=O)([O-])([O-])[O-].P(=O)([O-])([O-])[O-].P(=O)([O-])([O-])[O-].P(=O)([O-])([O-])[O-].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+] OIIYIFJVTVSNLY-UHFFFAOYSA-A 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 125000006340 pentafluoro ethyl group Chemical group FC(F)(F)C(F)(F)* 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 241000894007 species Species 0.000 description 1
- SEACXNRNJAXIBM-UHFFFAOYSA-N triethyl(methyl)azanium Chemical compound CC[N+](C)(CC)CC SEACXNRNJAXIBM-UHFFFAOYSA-N 0.000 description 1
- PBIMIGNDTBRRPI-UHFFFAOYSA-N trifluoro borate Chemical compound FOB(OF)OF PBIMIGNDTBRRPI-UHFFFAOYSA-N 0.000 description 1
- JFZKOODUSFUFIZ-UHFFFAOYSA-N trifluoro phosphate Chemical compound FOP(=O)(OF)OF JFZKOODUSFUFIZ-UHFFFAOYSA-N 0.000 description 1
- 150000005219 trimethyl ethers Chemical class 0.000 description 1
- ACZOGADOAZWANS-UHFFFAOYSA-N trimethyl(pentyl)azanium Chemical compound CCCCC[N+](C)(C)C ACZOGADOAZWANS-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/54—Electrolytes
- H01G11/58—Liquid electrolytes
-
- 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
- H01M10/0568—Liquid materials characterised by the solutes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/54—Electrolytes
- H01G11/58—Liquid electrolytes
- H01G11/60—Liquid electrolytes characterised by the solvent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/54—Electrolytes
- H01G11/58—Liquid electrolytes
- H01G11/62—Liquid electrolytes characterised by the solute, e.g. salts, anions or cations therein
-
- 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
-
- 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
-
- 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
- Y02E60/13—Energy storage using capacitors
Definitions
- the present invention relates to electrochemical energy storage devices such as electric double layer capacitors and non-aqueous electrolyte secondary batteries, and more particularly to the improvement of the characteristics of electrode reaction by non-aqueous electrolyte.
- Non-aqueous solvents used for electrolytes are cyclic carbonate ethylene carbonate (hereinafter abbreviated as EC), propylene carbonate (hereinafter abbreviated as PC), butylene glycol carbonate (hereinafter referred to as BC and Abbreviation), it is a cyclic ester, ⁇ -petit ratato (hereinafter abbreviated as ⁇ - ⁇ L).
- Non-aqueous electrolytes can be prepared by using any of these non-aqueous solvents, such as ⁇ , ⁇ , ⁇ , ⁇ -tetraethylammo 'tetrafluoroborate (hereinafter referred to as TEA'BF) or N, N, N-trichet
- TEMA'BF Lou N- methyl ammonium, tetrafluorinated
- One of the methods to further improve the energy density of the electric double layer capacitor is to make the setting of the charge voltage higher. This means making the charging potential of the positive electrode more noble (high) or making the charging potential of the negative electrode more negative (lower).
- a negative electrode using a carbon material that occludes and releases lithium ions, such as graphite which is a polarizable electrode such as activated carbon has been proposed.
- lithium ions are electrochemically absorbed in a carbon fiber which is presumed to have a graphite structure in an organic electrolytic solution in which a lithium salt is dissolved, and the lithium-containing carbon fiber is A secondary power source to be used for the negative electrode has been proposed (Patent Document 1).
- a negative electrode a mixture of a graphite-based material obtained by heat treatment of petroleum coats and activated carbon is used as an electrolyte, and an organic electrolyte in which a lithium salt and a quaternary ammonium salt are dissolved is used.
- a secondary power source has been proposed to occlude lithium ions in graphitic materials. (Patent Document 2) o These proposals exemplify the use of TEMA'BF for quaternary ammonium salts.
- N, N, N-triethyl-N-methyl ammonium ion rather than lithium ion at the initial stage of charging.
- TEMA ion N, N, N-triethyl-N-methyl ammonium ion
- the initial stage of charging means a process of electrochemically inserting lithium ions in the absence of lithium between graphite layers. Then, if charging continues, the layered structure of graphite is destroyed by the insertion of TEMA ions, so lithium ions are absorbed, and the problem that the potential of the negative electrode does not become negative is clarified.
- Patent Document 1 discloses that lithium ions can be added to the graphite material in the electrolyte solution without containing any quaternary ammonium salt. Occlusion. Insertion of TEMA ions in the electrolyte containing TEMA'BF
- Patent Document 1 Japanese Patent Application Laid-Open No. 11-144759
- Patent Document 2 Japanese Patent Application Laid-Open No. 2000-228222
- the present invention has been made in view of the problems described above, and lithium ion to a negative electrode material having a graphite structure is obtained even if a quaternary ammonium salt is dissolved in a non-aqueous electrolyte. It provides an electrolyte that causes stable storage and release, thereby enabling the setting of high charge voltage, small capacity deterioration even if charge and discharge cycles are repeated, and an electrochemical energy storage device.
- the purpose is
- the non-aqueous electrolyte for an electrochemical energy storage device comprises: (a) a lithium salt; (b) a quaternary ammonium ion having a quaternary ammonium cation having three or more methyl groups. It is characterized by containing salt and (c) nonaqueous solvent.
- FIG. 1 is a charge curve diagram of a graphite negative electrode in an electrolyte solution of an embodiment of the present invention.
- FIG. 2 is a charge curve diagram of a graphite negative electrode in an electrolyte solution of a comparative example of the present invention.
- lithium salts examples include lithium hexafluorophosphate (LiPF 6), lithium
- LiTFSI lithium bis [pentafluoroethanesulfo-l] imide
- LiBETI lithium [trifluoromethanesulfo-l] [nonafluorobutanesulfo-l ] Imido
- LiCHSI lithium cyclohexafluoropropane 1,3 bis [sulfo-le] imide
- LiBOB lithium bis [oxalate (2-)] borate
- LiC F BF lithium heptafluoropropyl trifluoroborate
- LiC F BF Lithium tris [pentafluoroethyl] trifluorophosphate
- Li (CF 3) PF Lithium tris [pentafluoroethyl] trifluorophosphate
- 2 5 3 3 may be mentioned, and these may be used alone or in combination of two or more.
- lithium salt in particular, LiTFSI, LiBETI, LiMBSI, LiCHSI, LiBOB, LiCF
- LiC F BF LiC F BF is preferred. These lithium salts have high reductive decomposition potentials.
- LiTFSI when LiTFSI is used as the lithium salt, a combination of LiTFSI and lithium hexaphosphate is preferred.
- the addition of lithium hexafluorophosphate suppresses the corrosion of the positive electrode current collector such as aluminum by LiTFSI, and the cycle characteristics are further improved.
- the amount of lithium hexafluorophosphate added is not particularly limited, but is preferably 5 to 20 mol% with respect to the total amount of LiTFSI and lithium hexafluorophosphate.
- the amount of addition of all lithium salts is not particularly limited, but EC, PC, BC,
- the molar ratio of lithium salt Z non-aqueous solvent is preferably 1Z4 or more, which is preferably higher than 1Z7.
- the quaternary ammonium cation constituting the (b) quaternary ammonium salt of the present invention an ammonium cation having three or more methyl groups is used.
- the quaternary ammonium cation constituting the quaternary ammonium salt of the present invention has at least three methyl groups and has a relatively small ion volume. For this reason, even if these ions intrude into the interlayer of graphite, their coulomb force attracts the black bell layers to each other, so that the breakage of the excessive black bell structure can be suppressed.
- lithium ion is stably absorbed and released into the graphite, and the potential of the negative electrode is maintained at a low level.
- the charging voltage of the electrochemical energy storage device can be set high. And since the destruction of the graphite structure is suppressed, an electrochemical energy storage device with small capacity deterioration can be obtained even if charge and discharge cycles are repeated at high voltage.
- substituents other than methyl group are not particularly limited as long as they have at least three methyl groups, but an alkyl group is preferable.
- TMA ion trimethyl ether Thiyl ammonium ion
- TMEA ion trimethylpropyl ammonium ion
- TMPA ion trimethyole nore ammonium ion
- TDMA ion trimethyole nore ammonium ion
- TDMA ion trimethyole nore ammonium ion
- TDMA ion trimethyole nore ammonium ion
- TDMA ion trimethyole nore ammonium ion
- TDMA ion trimethyole nore ammonium ion
- TMHA ion trimethylpentyl ammonium ion
- TMPeA ion trimethylhexyl ammonium ions
- TMA salt tetramethyl ammonium salt
- TMEA salt trimethylethyl ammonium salt
- TMPA salt trimethylpropyl ammonium salt
- TMBA salt trimethylbutyl ammonium salt
- the quaternary ammonium cation force having an ethyl group or a propyl group is composed of TMEA salt or TMPA. Salt is particularly preferred.
- quaternary ammonium salt for example, hexafluorophosphate ion
- TFSI ion bis [trifluoromethane sulfone] imide ion
- BETI ion bis [pentafluoromethane sulfone] imide ion
- MBSI ion bis [pentafluoromethane sulfone] imide ion
- MBSI ion [trif Fluoromethanesulfo-l] [nonafluorobutanesulfo-] imide ion
- CHSI ion Abbreviation Cyclohexafluoropropane 1,3 bis [sulfo-l] imide ion
- BOB ion bis [oxarate (2-)] borate ion
- BOB ion trifluoromethyl trifluoroborate ion
- Ammonium salt may be used alone or in combination of two or more.
- ions of quaternary ammonium salts similar to lithium salts, TFSI ion, BETI ion, MBSI ion, CHSI ion, BOB ion, CF BF (mono) ion, CF BF (— )
- the quaternary ammonium salt salts may be identical to or different from the lithium salt salts, or different! /.
- the amount of addition of all quaternary ammonium salts is not particularly limited, but high permittivity solvents such as EC, PC, BC, ⁇ -BL, etc.
- high permittivity solvents such as EC, PC, BC, ⁇ -BL, etc.
- a molar ratio of ammonium salt Z non-aqueous solvent 1Z10 or more is preferable and 1Z7 or more is more preferable.
- the molar ratio of lithium salt Z ammonium salt is not particularly limited, but 10 or less is preferable.
- non-aqueous solvent (c) used in the non-aqueous electrolyte examples include cyclic carbonates such as EC, PC, and BC, cyclic esters such as y BL, and the like, which may be used alone or in combination. It may be used in combination with other species.
- chain carbonates such as dimethyl carbonate (hereinafter, abbreviated as DMC), acetyl methyl carbonate (hereinafter, abbreviated as EMC), and jetyl carbonate (hereinafter, abbreviated as DEC) should not be contained as much as possible.
- chain carbonate When chain carbonate is mixed for the purpose of lowering the viscosity of the electrolytic solution, it is preferable to mix the chain carbonate at a molar ratio of 1Z2 or less with respect to the total amount of cyclic carbonate and cyclic ester.
- VC vinyl carbonate
- Vec vinyl ethylene carbonate
- DVec ibule ethylene carbonate
- phenyl ethylene carbonate hereinafter abbreviated as P ec
- diphenyl ethylene carbonate hereinafter abbreviated as DP ec
- AMC methyl vinyl carbonate
- EVC ethyl vinyl carbonate
- DVC divinyl carbonate
- AMC arylmethyl carbonate
- AEC arylethyl carbonate
- DAC diaryl carbonate
- the non-aqueous electrolytic solution of the present invention is prepared by mixing and dissolving lithium salts and quaternary ammonium salts and, if desired, additives in a predetermined amount in a non-aqueous solvent. And, the lithium salt and quaternary ammonium salt are contained in the non-aqueous electrolyte in the state of cation and ⁇ -on by dissolution.
- a carbon material having a graphite structure natural graphite, artificial graphite, a highly crystalline carbon material close to black lead, for example, mesophase pitch-based graphite fiber, graphitized mesocarbon microbeads , Vapor grown carbon fibers, graphite whiskers, etc.
- the graphite structure refers to a crystal structure in which the interlayer distance is grown to about 3.5 A or less.
- Artificial graphite powder was used as a negative electrode material that absorbs and releases lithium ions during charge and discharge.
- the negative electrode plate was produced as follows. First, 75 parts by mass of artificial graphite powder, 20 parts by mass of acetylene black as a conductive agent, 5 parts by mass of polyfluorinated bi-idene resin as a binder, and dehydrated N-methyl-2-pyrrolidone as a dispersion solvent are mixed. It was done. Next, this mixture was applied and dried on one side of a 20 m-thick copper foil current collector to form an 80 m-thick active material layer.
- the copper foil current collector on which the active material layer is formed is cut out to a size of 35 mm ⁇ 35 mm, and a 0.5 mm-thick copper current collector plate having a lead attached to the obtained copper foil current collector is ultrasonically welded. A board was made.
- the solution was mixed to give 4 4 1Z 4 Z 0.1 to prepare an electrolytic solution.
- this solution is dissolved when TMA'BF is supersaturated.
- LiTFSI, EC, and TMA.TFSI were mixed and prepared in a molar ratio of 1Z4Z0.1. This solution was stable at room temperature.
- the negative electrode plate produced as described above is used as a test electrode, and a lithium metal foil is used as a counter electrode and a reference electrode, and lithium ions to artificial graphite powder are prepared in each prepared electrolyte. An evaporative insertion was attempted. Insertion conditions were set to 20 ° C. and 0.03 mA / cm 2 .
- FIG. 1 is a diagram showing a potential curve when a force of 60 mAh Zg of force electric charge is applied to artificial graphite powder.
- the potential after current application has dropped to about 0.2 V, and this low potential shows that lithium ions intrude into the graphite layer and form a third stage structure. That is, even if the electrolyte contains TMA ions, stable insertion of lithium ions is possible. However, if er-on is BF (-), immediately before the end of energization, TM
- Example 2 In the same manner as Example 1, a negative electrode plate was produced using artificial graphite powder.
- LiBF, EC and TEMA 'BF power are mixed so that they become 1Z4Z0.1 in molar ratio, and the electrolyte
- LiBF, EC, and TEMA 'BF power molar ratio 0.
- the negative electrode plate produced as described above is used as a test electrode, a lithium metal foil is used as a counter electrode and a reference electrode, and electrochemical insertion of lithium ions into artificial graphite powder in each electrolytic solution is attempted. It was done. Insertion conditions were set to 20 ° C. and 0.03 mA / cm 2 .
- Fig. 2 is a diagram showing a potential curve in the case where a force Sword electric quantity of 60 mAh Zg is applied to artificial graphite powder.
- the potential after current application has not dropped to the potential that indicates the formation of the third stage structure, indicating that lithium ion insertion did not occur.
- the ratio of TEMA'BF is small, the reductive decomposition of EC continues following the insertion of TEMA ion, and
- TMA ion ethyl group
- TMPA ion propyl group
- TMBA ion butyl group
- pentyl group TMPEA ion
- TMHA ion hexyl
- LiTFSI, EC and quaternary ammonium salts mixed in a molar ratio of 0.6Z4Z0.6 And each electrolyte was prepared.
- Example 2 In the same manner as in Example 1, a negative electrode plate made of artificial graphite powder was used as a test electrode, and electrochemical insertion of lithium ions into artificial graphite powder was attempted in each prepared electrolyte. .
- the insertion conditions were: 20 ° C., 0.03 mAZcm 2 , 60 mAh Zg. After inserting lithium ions into the artificial graphite powder, an anode current was applied at a current of 0.03 mAZcm 2 to try to release lithium ions from the artificial graphite powder. The final potential of emission was 0.8V.
- Table 1 shows the amount of lithium released from the artificial graphite powder in each electrolytic solution. From this experiment, it can be seen that stable absorption and release of lithium ions are possible by using quaternary ammonium salts having quaternary ammonium cations having three or more methyl groups. Also, as shown in Table 1, among quaternary ammonium salts, TMA salt, TMEA salt, TMPA salt, and TMBA salt are particularly preferable in a non-aqueous electrolyte in which TMEA salt and TMPA salt are dissolved. Storage and release will be good.
- DMDEA ion quaternary ammonium cation
- TMA ion quaternary ammonium salt having a quaternary ammonium cation
- TMA ion Quaternary ammonium salt with hum cation
- Each electrolyte was prepared by mixing LiTFSI and EC with each quaternary ammonium salt at a molar ratio of 0.6Z4Z0.6.
- Example 2 In the same manner as Example 1, a negative electrode plate made of artificial graphite powder was used as a test electrode, and electrochemical insertion of lithium ions into artificial graphite powder was attempted in each electrolytic solution.
- the insertion conditions were: 20 ° C., 0.03 mAZcm 2 , 60 mAh Zg. After inserting lithium ion into the artificial graphite powder, an anode current was applied at a current of 0.03 mA / cm 2 , and release of lithium ion from the artificial graphite powder was attempted.
- lithium ions were not released from artificial graphite powder in DMDEA salt and TEMA salt. This is because, as confirmed in Comparative Example 1, lithium ions were not absorbed in the artificial graphite powder.
- the quaternary ammonium cation is fixed to the TMEA ion, and as a proton, PF (one),
- Each electrolyte solution was prepared by mixing lithium salt, EC, and each quaternary ammonium salt at a molar ratio of 1Z4Z0.1.
- the anode current was driven by the current of 1, and the release of artificial graphite powder lithium ion was attempted.
- the final potential of emission was 0.8V.
- Table 2 shows the amount of lithium released from the artificial graphite powder in each electrolytic solution. From this experiment, TMEA ion force having three methyl groups as an ammonium salt is composed of a quaternary anem It can be seen that lithium ions can be occluded and released even with V and shift ions when a molybdenum salt is used. In particular, quaternary ammonium with TFSI ion, BETI ion, MBSI ion, CHSI ion, BOB ion, CF BF (mono) ion, CF BF (—) ion
- the polarizable electrode was produced by the procedure shown below.
- An electrode was used in which the polarizable electrode produced as described above as the positive electrode was made of artificial graphite powder produced as the negative electrode in the same manner as in Example 1. After a polypropylene non-woven separator was placed between the two electrodes, it was wound and the whole was placed in an aluminum laminate tube to produce an electrochemical energy storage device.
- LiTFSI, LiPF, EC, and TMEA'TFSI have a molar ratio of 0.95Z0.05Z4Z0.1.
- the mixture was mixed to give an electrolyte solution.
- the assembled electrochemical energy storage device was repeatedly charged and discharged in a voltage range of 3.0 to 4.2 V at a constant current of 20 ° C. and 3 mAZ cm 2 to examine a change in capacity.
- the capacity retention ratio after dividing the capacity after 1000 cycles by the capacity at 10th cycle is 0.97.
- An electrochemical energy storage device was assembled in the same manner as in Example 4 except that the electrolyte mixed in was used.
- the assembled electrochemical energy storage device showed a small change in capacity when repeated charging and discharging were performed in a voltage range of 1.0 to 3.2 V at a constant current of 20 ° C. and 3 mAZ cm 2 .
- the capacity of the device was almost 0, and the aluminum laminate tube was greatly swollen.
- the cause of the expansion was because ethylene gas was accumulated in the device.
- the non-aqueous electrolyte for an electrochemical energy storage device of the present invention includes (a) a lithium salt, and (b) a quaternary quaternion having a quaternary ammonium cation having three or more methyl groups. It is characterized in that it contains ammonium salt and (c) a non-aqueous solvent.
- the quaternary ammonium cation of the specific structure that constitutes the quaternary ammonium salt of the present invention has at least three methyl groups and a relatively small ion volume. For this reason, even if these ions intrude into the graphite layer, the coulomb force attracts the graphite layers to each other, thereby suppressing the breakage of the excessive graphite structure.
- the non-aqueous electrolyte in which the quaternary ammonium salt of the present invention is dissolved lithium ion storage and release occur stably. Since the potential of the negative electrode is kept low, the charging voltage of the electrochemical energy storage device can be set high. And since destruction of the graphite structure is suppressed, an electrochemical energy storage device with small capacity deterioration can be obtained even if charge and discharge cycles are repeated at high voltage.
- quaternary ammonium ions are also included in the group consisting of tetramethyl ammonium ions, trimethyl ethyl ammonium ions, trimethyl propyl ammonium ions, and trimethyl alkyl ammonium ions.
- the cation chosen is preferred.
- the quaternary ammonium ions are preferably trimethylethyl ammonium ions or trimethylpropyl ammonium ions.
- the (a) lithium salt of the present invention and the (b) quaternary ammonium salt of (a) may be the same or different bis [trifluoromethanesulfone].
- An ion selected from the group consisting of an imide ion, a bis [oxalate (2-)] borate ion, a trifluoromethyltrifluorolate ion and a pentafluorotrileflate ion is preferred.
- a high charge voltage can be set in the non-aqueous electrolyte containing the above lithium salt and quaternary ammonium salt.
- lithium salt (a) it is preferable to use lithium bis [trifluoromethanesulfonyl] imide and lithium hexafluorophosphate in combination.
- the corrosion of the positive electrode current collector such as aluminum by LiTFSI is suppressed by the addition of lithium hexafluorophosphate, and excellent cycle characteristics can be obtained.
- the present invention is an electrochemical energy storage device using the non-aqueous electrolyte described above.
- the charging voltage can be set high, and an electrochemical energy storage device with small capacity deterioration can be obtained even if the charge and discharge cycle is repeated.
- a carbon material having a graphite structure can be obtained by using an electrolyte containing a quaternary ammonium salt having a quaternary ammonium cation having three or more methyl groups. It becomes possible to absorb and release lithium ions. And, by using the non-aqueous electrolyte, the charging voltage can be set high, and an electrochemical energy storage device excellent in cycle characteristics can be obtained.
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Abstract
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Priority Applications (3)
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US11/885,590 US20090123848A1 (en) | 2005-03-04 | 2006-01-30 | Nonaqueous Electrolyte Solution for Electrochemical Energy-Storing Device and Electrochemical Energy-Storing Device Using the Same |
JP2007507006A JPWO2006095507A1 (ja) | 2005-03-04 | 2006-01-30 | 電気化学エネルギー蓄積デバイス用非水電解液及びそれを用いた電気化学エネルギー蓄積デバイス |
EP06712627A EP1855298A4 (en) | 2005-03-04 | 2006-01-30 | WATER-FREE ELECTROLYTE FOR AN ELECTROCHEMICAL ENERGY STORAGE DEVICE AND THEREOF USE OF ELECTROCHEMICAL ENERGY STORAGE DEVICE |
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EP (1) | EP1855298A4 (ja) |
JP (1) | JPWO2006095507A1 (ja) |
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Cited By (5)
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JP2008117891A (ja) * | 2006-11-02 | 2008-05-22 | Matsushita Electric Ind Co Ltd | 電気化学エネルギー蓄積デバイス |
JP2008283048A (ja) * | 2007-05-11 | 2008-11-20 | Matsushita Electric Ind Co Ltd | 電気化学エネルギー蓄積デバイス |
CN103956268A (zh) * | 2014-05-15 | 2014-07-30 | 深圳新宙邦科技股份有限公司 | 一种电解液溶质和电解液及高电压超级电容器 |
WO2023243240A1 (ja) * | 2022-06-17 | 2023-12-21 | トヨタ自動車株式会社 | アルカリ金属イオン伝導体、アルカリ金属イオン電池、及び、アルカリ金属イオン伝導体の製造方法 |
JP7574828B2 (ja) | 2022-06-17 | 2024-10-29 | トヨタ自動車株式会社 | アルカリ金属イオン伝導体、アルカリ金属イオン電池、及び、アルカリ金属イオン伝導体の製造方法 |
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CN102290252B (zh) * | 2011-04-27 | 2012-11-14 | 山西永东化工股份有限公司 | 一种利用超导电炭黑制造超级电容器及耦合器的方法 |
JP6260209B2 (ja) * | 2013-11-08 | 2018-01-17 | 住友電気工業株式会社 | アルカリ金属イオンキャパシタ、その製造方法および充放電方法 |
WO2015172358A1 (zh) * | 2014-05-15 | 2015-11-19 | 深圳新宙邦科技股份有限公司 | 一种电解液溶质和电解液及高电压超级电容器 |
JP6743513B2 (ja) * | 2016-06-22 | 2020-08-19 | 日本ケミコン株式会社 | ハイブリッドキャパシタ及びその製造方法 |
FR3058574A1 (fr) * | 2016-11-07 | 2018-05-11 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Electrolytes non fluores a base d'un additif specifique du type liquide ionique pour batteries au lithium |
CN110994031B (zh) * | 2019-12-19 | 2021-11-30 | 湖南美尼科技有限公司 | 一种快充耐高温电解液及制备方法 |
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EP1176617B1 (en) * | 2000-07-25 | 2010-09-22 | Kuraray Co., Ltd. | Activated carbon, process for producing the same, polarizable electrode, and electric double layer capacitor |
JP4053003B2 (ja) * | 2001-12-21 | 2008-02-27 | 三洋電機株式会社 | 非水電解質二次電池 |
US7879489B2 (en) * | 2005-01-26 | 2011-02-01 | Panasonic Corporation | Non-aqueous electrolyte secondary battery |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008117891A (ja) * | 2006-11-02 | 2008-05-22 | Matsushita Electric Ind Co Ltd | 電気化学エネルギー蓄積デバイス |
JP2008283048A (ja) * | 2007-05-11 | 2008-11-20 | Matsushita Electric Ind Co Ltd | 電気化学エネルギー蓄積デバイス |
CN103956268A (zh) * | 2014-05-15 | 2014-07-30 | 深圳新宙邦科技股份有限公司 | 一种电解液溶质和电解液及高电压超级电容器 |
WO2023243240A1 (ja) * | 2022-06-17 | 2023-12-21 | トヨタ自動車株式会社 | アルカリ金属イオン伝導体、アルカリ金属イオン電池、及び、アルカリ金属イオン伝導体の製造方法 |
JP7574828B2 (ja) | 2022-06-17 | 2024-10-29 | トヨタ自動車株式会社 | アルカリ金属イオン伝導体、アルカリ金属イオン電池、及び、アルカリ金属イオン伝導体の製造方法 |
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CN101133468A (zh) | 2008-02-27 |
US20090123848A1 (en) | 2009-05-14 |
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