WO2015136722A1 - リチウムイオン電池、及びこれを用いた電子機器 - Google Patents
リチウムイオン電池、及びこれを用いた電子機器 Download PDFInfo
- Publication number
- WO2015136722A1 WO2015136722A1 PCT/JP2014/065439 JP2014065439W WO2015136722A1 WO 2015136722 A1 WO2015136722 A1 WO 2015136722A1 JP 2014065439 W JP2014065439 W JP 2014065439W WO 2015136722 A1 WO2015136722 A1 WO 2015136722A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lithium ion
- ion battery
- adsorbent
- zeolite
- battery according
- Prior art date
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- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 60
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 239000003463 adsorbent Substances 0.000 claims abstract description 59
- 239000010457 zeolite Substances 0.000 claims abstract description 52
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 46
- 239000011255 nonaqueous electrolyte Substances 0.000 claims abstract description 24
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 154
- 150000001875 compounds Chemical class 0.000 claims description 16
- 239000011148 porous material Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 125000002524 organometallic group Chemical group 0.000 claims description 5
- 239000003575 carbonaceous material Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 229910003471 inorganic composite material Inorganic materials 0.000 claims description 3
- 229910010272 inorganic material Inorganic materials 0.000 claims description 3
- 239000011147 inorganic material Substances 0.000 claims description 3
- 239000011368 organic material Substances 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 47
- 230000005856 abnormality Effects 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 57
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 20
- 238000010521 absorption reaction Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 13
- 239000008151 electrolyte solution Substances 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 9
- 239000011575 calcium Substances 0.000 description 8
- 239000003792 electrolyte Substances 0.000 description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 6
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 6
- -1 carbonate ester Chemical class 0.000 description 6
- 238000005342 ion exchange Methods 0.000 description 6
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
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- 239000002250 absorbent Substances 0.000 description 4
- 230000002745 absorbent Effects 0.000 description 4
- 150000001768 cations Chemical class 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000012299 nitrogen atmosphere Substances 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
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- 238000012360 testing method Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
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- 229920000858 Cyclodextrin Polymers 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
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- 239000000654 additive Substances 0.000 description 2
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 2
- 150000008044 alkali metal hydroxides Chemical class 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
- 239000011230 binding agent Substances 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- KXGVEGMKQFWNSR-UHFFFAOYSA-N deoxycholic acid Natural products C1CC2CC(O)CCC2(C)C2C1C1CCC(C(CCC(O)=O)C)C1(C)C(O)C2 KXGVEGMKQFWNSR-UHFFFAOYSA-N 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 150000002500 ions Chemical group 0.000 description 2
- 239000012621 metal-organic framework Substances 0.000 description 2
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- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- BHQCQFFYRZLCQQ-UHFFFAOYSA-N (3alpha,5alpha,7alpha,12alpha)-3,7,12-trihydroxy-cholan-24-oic acid Natural products OC1CC2CC(O)CCC2(C)C2C1C1CCC(C(CCC(O)=O)C)C1(C)C(O)C2 BHQCQFFYRZLCQQ-UHFFFAOYSA-N 0.000 description 1
- PPTXVXKCQZKFBN-UHFFFAOYSA-N (S)-(-)-1,1'-Bi-2-naphthol Chemical compound C1=CC=C2C(C3=C4C=CC=CC4=CC=C3O)=C(O)C=CC2=C1 PPTXVXKCQZKFBN-UHFFFAOYSA-N 0.000 description 1
- 150000005208 1,4-dihydroxybenzenes Chemical class 0.000 description 1
- JZODKRWQWUWGCD-UHFFFAOYSA-N 2,5-di-tert-butylbenzene-1,4-diol Chemical compound CC(C)(C)C1=CC(O)=C(C(C)(C)C)C=C1O JZODKRWQWUWGCD-UHFFFAOYSA-N 0.000 description 1
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 1
- HDPBBNNDDQOWPJ-UHFFFAOYSA-N 4-[1,2,2-tris(4-hydroxyphenyl)ethyl]phenol Chemical compound C1=CC(O)=CC=C1C(C=1C=CC(O)=CC=1)C(C=1C=CC(O)=CC=1)C1=CC=C(O)C=C1 HDPBBNNDDQOWPJ-UHFFFAOYSA-N 0.000 description 1
- 229920001450 Alpha-Cyclodextrin Polymers 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- SDDLEVPIDBLVHC-UHFFFAOYSA-N Bisphenol Z Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)CCCCC1 SDDLEVPIDBLVHC-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
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
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- 241000288673 Chiroptera Species 0.000 description 1
- 229920002101 Chitin Polymers 0.000 description 1
- 229920001661 Chitosan Polymers 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000004380 Cholic acid Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000001116 FEMA 4028 Substances 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- ARJATTBJXUUROE-UHFFFAOYSA-N OC(C1=CC=CC=C1C1=CC=CC=C1C(O)=O)=O.C(CC1)CCC1NC1CCCCC1.C(CC1)CCC1NC1CCCCC1 Chemical compound OC(C1=CC=CC=C1C1=CC=CC=C1C(O)=O)=O.C(CC1)CCC1NC1CCCCC1.C(CC1)CCC1NC1CCCCC1 ARJATTBJXUUROE-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- HFHDHCJBZVLPGP-RWMJIURBSA-N alpha-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO HFHDHCJBZVLPGP-RWMJIURBSA-N 0.000 description 1
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- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- VTJUKNSKBAOEHE-UHFFFAOYSA-N calixarene Chemical class COC(=O)COC1=C(CC=2C(=C(CC=3C(=C(C4)C=C(C=3)C(C)(C)C)OCC(=O)OC)C=C(C=2)C(C)(C)C)OCC(=O)OC)C=C(C(C)(C)C)C=C1CC1=C(OCC(=O)OC)C4=CC(C(C)(C)C)=C1 VTJUKNSKBAOEHE-UHFFFAOYSA-N 0.000 description 1
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- 230000015556 catabolic process Effects 0.000 description 1
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- BHQCQFFYRZLCQQ-OELDTZBJSA-N cholic acid Chemical compound C([C@H]1C[C@H]2O)[C@H](O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H]([C@@H](CCC(O)=O)C)[C@@]2(C)[C@@H](O)C1 BHQCQFFYRZLCQQ-OELDTZBJSA-N 0.000 description 1
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- KXGVEGMKQFWNSR-LLQZFEROSA-N deoxycholic acid Chemical compound C([C@H]1CC2)[C@H](O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H]([C@@H](CCC(O)=O)C)[C@@]2(C)[C@@H](O)C1 KXGVEGMKQFWNSR-LLQZFEROSA-N 0.000 description 1
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- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 description 1
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- QWDJLDTYWNBUKE-UHFFFAOYSA-L magnesium bicarbonate Chemical compound [Mg+2].OC([O-])=O.OC([O-])=O QWDJLDTYWNBUKE-UHFFFAOYSA-L 0.000 description 1
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- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
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- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
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- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
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- 238000010998 test method Methods 0.000 description 1
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229940045136 urea Drugs 0.000 description 1
- 150000003752 zinc compounds Chemical class 0.000 description 1
Images
Classifications
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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
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
-
- 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
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/52—Removing gases inside the secondary cell, e.g. by absorption
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/117—Inorganic material
- H01M50/119—Metals
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a lithium ion battery in which a laminate of an electrode sheet and a separator impregnated with a non-aqueous electrolyte solution is sealed in an airtight container, and particularly an increase in internal pressure due to gas components such as CO and CO 2 generated inside the battery.
- the present invention relates to a lithium ion battery having a suppressing function.
- the present invention also relates to an electronic device using the lithium ion battery.
- lithium ion battery In recent years, large capacity, high output type lithium ion batteries have been put into practical use. This lithium ion battery is required to have higher safety and stability than conventional secondary batteries because of its high capacity and high output.
- a positive electrode body and a negative electrode body are sealed in an airtight container together with an electrolyte solution, lithium ions in the electrolyte solution are responsible for electrical conduction, and a laminate of an electrode sheet and a separator is formed into a square shape. In this case, it is formed in a sandwich shape, and in the case of a cylindrical shape, it is formed in a roll shape.
- electrolyte solution is inject
- a nonaqueous electrolytic solution containing ethylene carbonate or the like is used as the electrolytic solution used in the lithium ion battery.
- it is effective to increase the usable voltage. Therefore, carbonate-based electrolytes that can be charged and discharged at a particularly high voltage are widely used.
- Patent Documents 1 to 3 disclose a technique of adding an additive for reducing the generation of gas in an electrolytic solution.
- Patent Document 4 proposes an electric double layer capacitor having a structure in which CO 2 is absorbed by an absorbent mainly composed of a hydroxide such as lithium hydroxide.
- Patent Documents 1 to 3 have a problem that the effect of suppressing the generation of gases such as CO and CO 2 is not sufficient.
- the technique described in Patent Document 4 has a certain amount of absorption effect such as CO 2, but has a problem in that CO absorptivity cannot be expected.
- an alkali hydroxide such as lithium hydroxide
- alkali hydroxide reacts with CO 2 , moisture may be generated and corrosivity may increase.
- the present invention has been made in view of the above problems, and has a function of absorbing a gas component such as CO or CO 2 generated inside the battery when used abnormally or for a long period of time, and has excellent performance maintaining characteristics.
- An object is to provide a battery.
- an object of this invention is to provide the electronic device excellent in safety incorporating this lithium ion.
- the present invention includes a laminate of a positive electrode, a negative electrode, and a separator impregnated with a non-aqueous electrolyte solution enclosed in an airtight container, and lithium ions in the non-aqueous electrolyte solution are electrically charged.
- a lithium ion battery responsible for conduction wherein the airtight container is filled with CO and a CO 2 adsorbent (Invention 1).
- the CO and CO 2 adsorbents absorb gas components such as CO and CO 2 quickly and with a high absorption rate. It is possible to alleviate deformation of the hermetic container accompanying an increase in internal pressure due to the generation of these gas components, such as during an abnormality, and to suppress an increase in the internal resistance of the battery.
- the CO and CO 2 adsorbent is preferably an electrically insulating properties of the gas-liquid separation membrane is isolated from the said non-aqueous electrolyte solution (invention 2).
- gas components such as CO and CO 2 generated from a lithium ion battery and a non-aqueous electrolyte are separated by a gas-liquid separation membrane, and CO and CO 2 adsorbents are disposed on the gas component side.
- gas components such as CO and CO 2 can be selectively absorbed, and the reduction of the non-aqueous electrolyte can be minimized.
- a decrease in the capacity of the lithium ion battery can be suppressed.
- the non-aqueous electrolyte and the CO and CO 2 adsorbent are not in direct contact, it is possible to maintain the gas absorption performance of the CO and CO 2 adsorbent.
- the CO and CO 2 adsorbents are preferably organic materials, inorganic materials, or organic-inorganic composite materials (Invention 3).
- these CO and CO 2 adsorbents absorb gas components such as CO and CO 2 quickly and with a high absorption rate.
- the deformation of the hermetic container accompanying the increase in internal pressure due to the gas component can be mitigated, and the increase in the internal resistance of the battery can be suppressed.
- the CO and CO 2 adsorbents are preferably inorganic porous materials, carbon-based materials, organic host compounds, porous organometallic composite materials, or basic materials ( Invention 4).
- the CO and CO 2 adsorbent is preferably zeolite (Invention 5).
- these CO and CO 2 adsorbents absorb gas components such as CO and CO 2 quickly and with a high absorption rate.
- gas components such as CO and CO 2 quickly and with a high absorption rate.
- the deformation of the hermetic container due to the increase in internal pressure due to these gas components can be mitigated, and an increase in the internal resistance of the battery can be suppressed.
- the lithium ion battery can be made compact.
- the CO and CO 2 adsorbents preferably have a specific surface area of 100 to 3000 m 2 / g (Invention 6).
- invention 6 a sufficient contact area between the CO and CO 2 adsorbent and gas components such as CO and CO 2 can be ensured, so that a high absorption rate can be maintained.
- the CO and CO 2 adsorbents preferably have a pore diameter of 3 to 10 cm (Invention 7).
- the CO and CO 2 adsorbent can capture gas components such as CO and CO 2 in the pores and absorb these gases more rapidly.
- the CO and CO 2 adsorbent have an elemental composition ratio of Si / Al ratio in the range of 1 to 5 (Invention 8).
- the CO and CO 2 adsorbents can be zeolites of A type, X type or LSX type (Invention 9).
- the CO and CO 2 adsorbents are preferably LSX type zeolite ion-exchanged with Li (Invention 10).
- the CO and CO 2 adsorbent is preferably an ion exchanged type A zeolite Ca (invention 11).
- the present invention provides an electronic device characterized by incorporating the lithium ion battery according to any one of Inventions 1 to 101 (Invention 12).
- the deformation of the battery container is suppressed by reducing the amount of gas such as CO and CO 2 generated by the decomposition of the non-aqueous electrolyte while suppressing the capacity reduction of the lithium ion battery. It can be set as the electronic device which excluded the bad influence by an ion battery.
- the battery container of the lithium ion battery is filled with CO and a CO 2 adsorbent, CO generated in a large amount among gases generated from the non-aqueous electrolyte used in the lithium ion battery. , CO 2 can be reduced, and a lithium ion battery having a high performance maintenance rate can be obtained.
- FIG. 1 is a longitudinal sectional view showing a lithium ion battery of this embodiment.
- a lithium ion battery E includes a positive electrode terminal 1 and a negative electrode terminal 2, a battery case (housing) 3 as an airtight container, and an explosion-proof valve (as shown in FIG.
- the electrode body 10 is housed inside the battery case 3.
- the electrode body 10 has a positive electrode current collector 11 and a positive electrode plate 12, and a negative electrode current collector 13 and a negative electrode plate 14.
- the positive electrode plate 12 and the negative electrode plate 14 are separators, respectively. 15 is laminated.
- the positive terminal 1 is electrically connected to the positive electrode plate 12, and the negative terminal 2 is electrically connected to the negative electrode plate 14.
- the battery case 3 as a housing is, for example, a square battery tank can made of aluminum or stainless steel, and has airtightness.
- the positive electrode plate 12 is a current collector in which a positive electrode mixture is held on both surfaces.
- the current collector is an aluminum foil having a thickness of about 20 ⁇ m
- the paste-like positive electrode mixture is polyvinylidene fluoride as a binder to lithium cobalt oxide (LiCoO 2 ), which is a lithium-containing oxide of a transition metal.
- acetylene black as a conductive material are added and kneaded.
- the positive electrode plate 12 is obtained by applying this paste-like positive electrode mixture on both sides of the aluminum foil, followed by drying, rolling, and cutting into a strip.
- the negative electrode plate 14 is a current collector in which a negative electrode mixture is held on both sides.
- the current collector is a copper foil having a thickness of 10 ⁇ m
- the paste-like negative electrode mixture is obtained by kneading after adding polyvinylidene fluoride as a binder to graphite powder.
- the negative electrode plate 14 is obtained by applying the paste-like negative electrode mixture on both sides of the copper foil, followed by drying, rolling, and cutting into strips.
- a porous film is used as the separator 15.
- the separator 15 can be a polyethylene microporous film.
- non-aqueous organic electrolytes having lithium ion conductivity are preferable.
- cyclic carbonates such as propylene carbonate (PC) and ethylene carbonate (EC), and dimethyl carbonate (
- a mixed solution with a chain carbonate such as DMC), ethyl methyl carbonate (EMC), or diethyl carbonate (DEC) is preferable.
- a lithium salt such as lithium hexafluorophosphate is dissolved as an electrolyte. .
- CO and CO 2 adsorbents are installed in the gaps in the battery case (housing) 3 of the lithium ion battery E.
- the CO and CO 2 adsorbent need only have a function of adsorbing CO and / or CO 2 generated by the decomposition of the electrolytic solution, and acts only on one of the specific gases. Also good. Moreover, even those that physically adsorb gas components such as CO and CO 2 inside pores, or those that enclose gas components such as CO and CO 2 due to the influence of intermolecular interaction and crystal lattice gaps. Good.
- CO and CO 2 adsorbent used in the present embodiment include inorganic materials such as inorganic porous materials, organic materials such as carbon materials, organic host compounds, and porous organometallic composite materials.
- Inorganic porous materials include porous silica, metal porous structure, calcium silicate, magnesium silicate, magnesium metasilicate aluminate, zeolite, activated alumina, titanium oxide, apatite, porous glass, magnesium oxide, aluminum silicate Etc. are suitable.
- granular activated carbon As the carbon-based material, granular activated carbon, fibrous activated carbon, sheet activated carbon, graphite, carbon nanotube, fullerene, nanocarbon and the like are suitable.
- organic host compounds include ⁇ -cyclodextrin, ⁇ -cyclodextrin, ⁇ -cyclodextrin, calixarenes, urea, deoxycholic acid, cholic acid, 1,1,6,6-tetraphenylhexa-2,4- Acetylene alcohols such as diyne-1,6-diol, bisphenols such as 1,1-bis (4-hydroxyphenyl) cyclohexane, tetrakisphenols such as 1,1,2,2-tetrakis (4-hydroxyphenyl) ethane , Naphthols such as bis- ⁇ -naphthol, carboxylic acid amides such as bis (dicyclohexylamide) diphenate, hydroquinones such as 2,5-di-t-butylhydroquinone, chitin, chitosan and the like are preferable.
- organic host compounds may be used alone or in combination of two or more.
- the organic host compound described above can also be used as an organic-inorganic composite material supported on an inorganic porous material.
- porous material supporting the organic host compound include silica, zeolites, activated carbons, intercalation compounds such as clay minerals and montmorillonites, but are not limited thereto. Absent.
- Porous organometallic complexes include metal-organic frameworks (MOF), porous organometallic complex compounds, organic carboxylates, organoboron compounds, organophosphorus compounds, organoaluminum compounds, organotitanium compounds, organosilicon compounds, and organic compounds.
- MOF metal-organic frameworks
- Zinc compounds, organomagnesium compounds, organoindium compounds, organotin compounds, organotellurium compounds, organogallium compounds, and the like are suitable.
- CO and CO 2 adsorbents may be used alone or in combination of two or more materials, but zeolite is particularly effective.
- the CO and CO 2 adsorbents as described above preferably have a specific surface area of 100 to 3000 m 2 / g.
- the specific surface area is less than 100 m 2 / g, the contact area with gas components such as CO and CO 2 is small, and sufficient adsorption performance cannot be exhibited.
- the specific surface area exceeds the 3000 m 2 / g CO, not only can not be obtained the effect of improving the adsorption performance of the CO 2, is not preferable because the mechanical strength of the CO and CO 2 adsorbent is lowered.
- the CO and CO 2 adsorbents preferably have a pore diameter of 3 to 10 mm.
- the pore volume is less than 3 mm, it is difficult for gas components such as CO and CO 2 to enter the pores.
- the pore volume exceeds 10 kg, the adsorption power of CO and CO 2 becomes weak, and it is not possible to adsorb the finest in the pores, resulting in a decrease in the amount of adsorption, which is not preferable.
- the CO and CO 2 adsorbents are zeolites
- they it is preferable to use those having an elemental composition ratio of Si / Al ratio in the range of 1-5.
- Zeolite having a Si / Al ratio of less than 1 is structurally unstable.
- zeolite having a Si / Al ratio of more than 5 is not preferable because the cation content is low and the adsorption amount of CO and CO 2 is reduced.
- zeolite of A type, X type or LSX type is preferable to use as the zeolite.
- LSX type or A type zeolite in which the cation part of the zeolite is ion-exchanged with Li, and A type zeolite in which the cation part of the zeolite is ion-exchanged with Ca are preferable, and more preferably the A type zeolite in which the cation part is ion-exchanged with Ca.
- the CO and CO 2 adsorbents housed in the battery case 3 may absorb moisture due to the humidity in the atmosphere in the assembly stage of the lithium ion battery. And, when zeolite absorbs moisture, the absorption performance of CO and CO 2 is greatly reduced, and the absorption performance of CO and CO 2 is difficult to recover completely even after regeneration by heating and drying. is there.
- the A-type zeolite ion-exchanged with Ca can regenerate the water absorption performance by expelling the moisture by heating after containing moisture, and a lithium ion battery with improved durability can be obtained. It is suitable for.
- the chlorine-based material include metal carbonates such as potassium carbonate, sodium carbonate, and calcium carbonate, metal bicarbonates such as sodium bicarbonate, magnesium bicarbonate, and calcium bicarbonate, magnesium hydroxide, water Examples thereof include alkaline hydroxides such as sodium oxide and calcium hydroxide, other alkaline minerals, organic substances, and porous materials.
- the water absorbent In order to suppress the performance of the gas absorbent from being deteriorated by moisture, about 25 to 75 volume% of the water absorbent can be blended with 100 volume% of the CO and CO 2 adsorbent.
- zeolite such as molecular sieve, silica gel, activated alumina, calcium chloride, diphosphorus pentoxide, and the like can be used, but molecular sieve is preferable because it is porous and has a large amount of absorption.
- the CO and CO 2 adsorbents are separated by a gas-liquid separation membrane so that the non-aqueous electrolyte and the CO and CO 2 adsorbents do not come into direct contact rather than filling the battery case (casing) 3 as it is. It is preferable to install it separately.
- gas-liquid separation membrane gas components such as CO and CO 2 generated from the lithium ion battery permeate the gas-liquid separation membrane. Since the liquid non-aqueous electrolyte does not permeate, gas components such as CO and CO 2 can be selectively absorbed, and the reduction of the non-aqueous electrolyte can be minimized.
- action is demonstrated about the lithium ion battery which has the structure mentioned above.
- the non-aqueous electrolyte contained in the lithium ion battery E is decomposed, and gas components such as CO and CO 2 are generated.
- gas components such as CO and CO 2 may cause an increase in internal pressure of the battery case (housing) 3
- CO and CO 2 adsorbents are placed in the battery case (housing) 3. since the arrangement, CO, CO 2 is not be excessively increased inner pressure of the battery case (housing) 3 is absorbed. As a result, it is possible to improve the safety and extend the life of the lithium ion battery.
- the lithium ion battery E may have a cylindrical shape, and further, a lithium ion battery may be separately housed in a battery case that can accommodate the lithium ion battery, and a gas absorbing material may be provided in the battery case.
- Example 1 Using CO 2 and CO 2 adsorbents, Li ion-exchanged LSX type zeolite was used to measure the equilibrium adsorption amounts of CO 2 and CO at 25 ° C. and 760 mmHg by a nitrogen adsorption method. As a result, the CO 2 adsorption amount was 130 mL / g, and the CO adsorption amount was 52 mL / g.
- Example 2 Using CO-exchanged X-type zeolite as the CO and CO 2 adsorbent, the equilibrium adsorption amounts of CO 2 and CO at 25 ° C. and 760 mmHg were measured by a nitrogen adsorption method. As a result, the CO 2 adsorption amount was 130 mL / g, and the CO adsorption amount was 38 mL / g.
- Example 3 As the CO and CO 2 adsorbent, X-type zeolite subjected to Na ion exchange was used, and the equilibrium adsorption amount of CO 2 and CO at 25 ° C. and 760 mmHg was measured by a nitrogen adsorption method. As a result, the CO 2 adsorption amount was 132 mL / g, and the CO adsorption amount was 27 mL / g.
- Example 4 Using CO-exchanged A-type zeolite as the CO and CO 2 adsorbent, the equilibrium adsorption amounts of CO 2 and CO at 25 ° C. and 760 mmHg were measured by a nitrogen adsorption method. As a result, the CO 2 adsorption amount was 105 mL / g, and the CO adsorption amount was 31 mL / g.
- Example 5 As CO and CO 2 adsorbents, A-type zeolite subjected to Na ion exchange was used, and the equilibrium adsorption amounts of CO 2 and CO at 25 ° C. and 760 mmHg were measured by a nitrogen adsorption method. As a result, the CO 2 adsorption amount was 70 mL / g, and the CO adsorption amount was 19 mL / g.
- Example 7 Using CO 2 -exchanged ZSM-5 type zeolite as the CO and CO 2 adsorbent, the equilibrium adsorption amount of CO 2 and CO at 25 ° C. and 760 mmHg was measured by a nitrogen adsorption method. As a result, the CO 2 adsorption amount was 56 mL / g, and the CO adsorption amount was 10 mL / g.
- Example 8 to 12 Reactivity test with electrolyte
- the reactivity test between various zeolites and electrolytes was performed according to the following procedure.
- an electrolytic solution a mixed solution in which propylene carbonate (PC), ethylene carbonate (EC), and diethyl carbonate (DEC) were mixed at a ratio of 1: 1: 1 was prepared.
- a sample (various zeolites shown in Table 1) was placed in a 50 mL gas collection bottle, connected to a vacuum pump, evacuated for 3 minutes, and then sealed in a vacuum state.
- 10 mL of electrolyte solution was added with a syringe from the septum cap of this gas collection bottle in a dry nitrogen atmosphere, and the presence or absence of heat generation and generation of bubbles was confirmed.
- the gas collection bottle was opened in the dry nitrogen atmosphere, and the gas inside the gas collection bottle was analyzed by a gas chromatograph (GC) to confirm the presence or absence of carbon dioxide and ethylene. .
- GC gas chromatograph
- Table 1 also shows the results of measuring the amount of CO 2 adsorbed at 25 ° C. and 760 mmHg for each sample of Examples 8 to 12.
- the adsorption amount of CO 2 was measured by the following reduced pressure test method.
- Equipment used ⁇ a> Vacuum desiccator (volume 1.37L)
- B> Vacuum pump ⁇ c> Pressure vessel (same volume as vacuum desiccator, with pressure gauge)
- Pressure sensor It can display reduced pressure and is attached to the vacuum desiccator of ⁇ a>.
- E> Data logger ⁇ f> Petri dish (made of metal) ⁇ G> CO 2 gas ⁇ h> electronic balance
- the adsorption amount of CO 2 gas when the vessel 1.37L had been filled with CO 2 gas, considering when half the CO 2 gas is absorbed, CO 2 gas 685mL absorption It will be done.
- the value of the pressure sensor is intermediate between the vacuum and the atmospheric pressure (101.3 / 2 kPa), that is, 50, 56 kPa, so the CO 2 gas absorption amount is y (mL),
- Example 8 (Ca ion-exchanged A-type zeolite) and Example 10 (Li ion-exchanged A-type zeolite) had excellent carbon dioxide adsorption ability and poor reactivity with the electrolyte. .
- the zeolites of Examples 9, 11 and 12 were excellent in carbon dioxide adsorption ability, but reacted with the electrolytic solution to generate heat, bubbles, gas and the like. From these results, it was found that Ca ion exchange A-type zeolite and Li ion exchange A-type zeolite are more suitable for lithium ion batteries.
- Example 13 (Confirmation test of regeneration characteristics after moisture absorption) Using Ca ion-exchanged A-type zeolite (Example 13) and Li-ion-exchanged A-type zeolite (Example 14) for which favorable results were obtained in Examples 8 to 12 above, 5 mm thick each on stainless steel bats It was laid down to the extent and the accurate mass was measured with an electronic balance. This sample was left in a constant temperature bath at 25 ° C. and 50% RH for 12 hours or more until it was confirmed that the sample weight had increased by 10% or more, and was humidified.
- Example 13 using a Ca ion-exchange A-type zeolite compared to Example 14 using the Li ion-exchange A-type zeolite, the initial CO 2 adsorption amount is high, after regeneration CO 2 The adsorption capacity was almost recovered. On the other hand, in Example 14, the recovery of the CO 2 adsorption capacity after regeneration was slight. Further, the zeolite is found to lose nearly CO 2 adsorption capacity by humidification. From these facts, it was confirmed that Ca ion-exchanged A-type zeolite is suitable when importance is attached to the regenerating ability after humidification.
- the lithium ion battery of the present invention as described above has a gas adsorbent that can absorb CO 2 and CO generated inside the battery and reduce its volume, thus greatly improving the safety of the lithium ion battery. And its industrial applicability is extremely large. Also, an electronic device incorporating such a lithium ion battery is excellent in safety.
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Abstract
Description
CO及びCO2吸着材として、Liイオン交換したLSX型のゼオライトを用いて、窒素吸着法により、25℃、760mmHgにおけるCO2およびCOの平衡吸着量を測定した。この結果、CO2吸着量は130mL/gであり、CO吸着量は52mL/gであった。
CO及びCO2吸着材として、Caイオン交換したX型のゼオライトを用いて、窒素吸着法により、25℃、760mmHgにおけるCO2およびCOの平衡吸着量を測定した。この結果、CO2吸着量は130mL/gであり、CO吸着量は38mL/gであった。
CO及びCO2吸着材として、Naイオン交換したX型のゼオライトを用いて、窒素吸着法により、25℃、760mmHgにおけるCO2およびCOの平衡吸着量を測定した。この結果、CO2吸着量は132mL/gであり、CO吸着量は27mL/gであった。
CO及びCO2吸着材として、Caイオン交換したA型のゼオライトを用いて、窒素吸着法により、25℃、760mmHgにおけるCO2およびCOの平衡吸着量を測定した。この結果、CO2吸着量は105mL/gであり、CO吸着量は31mL/gであった。
CO及びCO2吸着材として、Naイオン交換したA型のゼオライトを用いて、窒素吸着法により、25℃、760mmHgにおけるCO2およびCOの平衡吸着量を測定した。この結果、CO2吸着量は70mL/gであり、CO吸着量は19mL/gであった。
CO及びCO2吸着材として、Hイオン交換したY型のゼオライトを用いて、窒素吸着法により、25℃、760mmHgにおけるCO2およびCOの平衡吸着量を測定した。この結果、CO2吸着量は15mL/gであり、CO吸着量は2mL/gであった。
CO及びCO2吸着材として、Caイオン交換したZSM-5型のゼオライトを用いて、窒素吸着法により、25℃、760mmHgにおけるCO2およびCOの平衡吸着量を測定した。この結果、CO2吸着量は56mL/gであり、CO吸着量は10mL/gであった。
(電解液との反応性試験)
本発明のリチウムイオン電池において、CO及びCO2吸着材は、電池ケース内に置かれることになるため、電解液と反応性してガスを発生したり、発熱したりするものは好ましくない。そこで、以下の手順により各種ゼオライトと電解液との反応性試験を行った。なお、電解液としては、プロピレンカーボネート(PC)、エチレンカーボネート(EC)、ジエチルカーボネート(DEC)を1:1:1の割合で混合した混合液を用意した。
(1)使用器具
〈a〉真空デシケータ(容積1.37L)
〈b〉真空ポンプ
〈c〉圧力容器(真空デシケータと同容積で、圧力ゲージ付)
〈d〉圧力センサー(減圧表示可能なもので、〈a〉の真空デシケータに取り付ける。)
〈e〉データロガー
〈f〉シャーレ(金属製)
〈g〉CO2ガス
〈h〉電子天秤
まず、窒素パージされたグローブボックス内で、各試料を約5g採取し電子天秤で正確な質量を計測し、シャーレに取り分けた。この取り分けた試料をデシケータ内に速やかに持ち込み、デシケータに蓋をして、真空ポンプにてゲージ圧で100kPaまで減圧した。一方、圧力容器の内部をCO2ガスで完全に置換し、さらにゲージ圧で100kPaまで充填した。このときデシケータにおけるデータロガーの記録を開始した。続いて、真空デシケータと圧力容器を接続し、圧力容器のゲージが0kPaになるまでCO2ガスを真空デシケータ内に送り込み、この時点を吸収開始時間とした。そして、一定時間経過後のデータロガーの数値を読み取ることでCO2ガスの吸着量を計算した。
y=-13.62x ・・・(1)
が導きだされるので、これに基づいて算出した。
(水分吸収後の再生特性の確認試験)
前記実施例8~12で好適な結果が得られたCaイオン交換A型ゼオライト(実施例13)及びLiイオン交換A型ゼオライト(実施例14)を試料として、それぞれステンレス製のバットに厚さ5mm程度に敷設し、電子天秤で正確な質量を計測した。この試料を25℃、50%RHの恒温槽内に12時間以上、試料重量が10%以上増加していることが確認できるまで放置して加湿した。このときのCO2ガスの吸着量を前記実施例8~12と同様にして計測した結果を、あらかじめ測定しておいた初期の各試料のCO2ガスの吸着量とともに表2に示す。なお、ここで試料重量が10%以上の増加は、水分を20重量%以上含んでいることを意味する。
2…負極端子(負極)
3…電池ケース(筐体)(気密容器)
11…正極集電体(正極)
13…負極集電体(負極)
E…リチウムイオン電池
Claims (12)
- 非水系電解液が含浸された正極と負極とセパレータとの積層体が気密容器内に封入され、前記非水系電解液中のリチウムイオンが電気伝導を担うリチウムイオン電池であって、
前記気密容器内にCO及びCO2吸着材が充填されていることを特徴とするリチウムイオン電池。 - 前記CO及びCO2吸着材が、電気絶縁性の気液分離膜により前記非水系電解液と隔離されていることを特徴とする請求項1に記載のリチウムイオン電池。
- 前記CO及びCO2吸着材が、有機系素材、無機系素材、または有機-無機複合素材であることを特徴とする請求項1又は2に記載のリチウムイオン電池。
- 前記CO及びCO2吸着材が、無機多孔質材料、炭素系材料、有機ホスト化合物、多孔質有機金属複合材料、または塩基性材料であることを特徴とする請求項1~3のいずれかに記載のリチウムイオン電池。
- 前記CO及びCO2吸着材が、ゼオライトであることを特徴とする請求項1~4のいずれかに記載のリチウムイオン電池。
- 前記CO及びCO2吸着材が、100~3000m2/gの比表面積を有することを特徴とする請求項4又は5に記載のリチウムイオン電池。
- 前記CO及びCO2吸着材が、3Å~10Åの細孔径を有することを特徴とする請求項4~6のいずれかに記載のリチウムイオン電池。
- 前記CO及びCO2吸着材が、Si/Al比が1~5の範囲の元素構成比を有するゼオライトであることを特徴とする請求項5に記載のリチウムイオン電池。
- 前記CO及びCO2吸着材が、A型、X型あるいはLSX型のゼオライトであることを特徴とする請求項5又は8に記載のリチウムイオン電池。
- 前記CO及びCO2吸着材が、Liでイオン交換されたLSX型のゼオライトであることを特徴とする請求項5、8又は9に記載のリチウムイオン電池。
- 前記CO及びCO2吸着材が、Caでイオン交換されたA型のゼオライトであることを特徴とする請求項5、8又は9に記載のリチウムイオン電池。
- 前記請求項1~11のいずれかに記載のリチウムイオン電池を内蔵したことを特徴とする電子機器。
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