JP5171854B2 - リチウム二次電池 - Google Patents
リチウム二次電池 Download PDFInfo
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- JP5171854B2 JP5171854B2 JP2010026052A JP2010026052A JP5171854B2 JP 5171854 B2 JP5171854 B2 JP 5171854B2 JP 2010026052 A JP2010026052 A JP 2010026052A JP 2010026052 A JP2010026052 A JP 2010026052A JP 5171854 B2 JP5171854 B2 JP 5171854B2
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- Prior art keywords
- carbonate
- negative electrode
- secondary battery
- lithium secondary
- battery
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- 229910052744 lithium Inorganic materials 0.000 title claims description 25
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims description 24
- 239000000203 mixture Substances 0.000 claims description 36
- CIPHOUPBLAOEKY-UHFFFAOYSA-N azepane-1-carbodithioate;azepan-1-ium Chemical compound C1CCCNCC1.SC(=S)N1CCCCCC1 CIPHOUPBLAOEKY-UHFFFAOYSA-N 0.000 claims description 31
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 29
- 150000001875 compounds Chemical class 0.000 claims description 24
- 239000008151 electrolyte solution Substances 0.000 claims description 18
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 12
- 239000007773 negative electrode material Substances 0.000 claims description 12
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 claims description 11
- 239000003575 carbonaceous material Substances 0.000 claims description 10
- 229910052759 nickel Inorganic materials 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000003792 electrolyte Substances 0.000 claims description 7
- 229910021480 group 4 element Inorganic materials 0.000 claims description 7
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 6
- 229910001416 lithium ion Inorganic materials 0.000 claims description 6
- 125000000524 functional group Chemical group 0.000 claims description 5
- 229910052796 boron Inorganic materials 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 150000004767 nitrides Chemical class 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 239000006182 cathode active material Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000003860 storage Methods 0.000 description 16
- 239000010410 layer Substances 0.000 description 15
- 239000002904 solvent Substances 0.000 description 15
- 239000000463 material Substances 0.000 description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 125000000217 alkyl group Chemical group 0.000 description 10
- 239000011230 binding agent Substances 0.000 description 10
- 239000007774 positive electrode material Substances 0.000 description 9
- VAYTZRYEBVHVLE-UHFFFAOYSA-N 1,3-dioxol-2-one Chemical compound O=C1OC=CO1 VAYTZRYEBVHVLE-UHFFFAOYSA-N 0.000 description 8
- 239000006229 carbon black Substances 0.000 description 8
- 230000015556 catabolic process Effects 0.000 description 6
- 239000004020 conductor Substances 0.000 description 6
- 238000006731 degradation reaction Methods 0.000 description 6
- 230000006866 deterioration Effects 0.000 description 6
- 239000002033 PVDF binder Substances 0.000 description 5
- -1 and M 2 is Co Substances 0.000 description 5
- 229910003002 lithium salt Inorganic materials 0.000 description 5
- 159000000002 lithium salts Chemical class 0.000 description 5
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 4
- 229910014089 LiMn1/3Ni1/3Co1/3O2 Inorganic materials 0.000 description 4
- 229910013870 LiPF 6 Inorganic materials 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000006258 conductive agent Substances 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 150000002500 ions Chemical group 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 3
- CRJXZTRTJWAKMU-UHFFFAOYSA-N 4,4,5-trifluoro-1,3-dioxolan-2-one Chemical compound FC1OC(=O)OC1(F)F CRJXZTRTJWAKMU-UHFFFAOYSA-N 0.000 description 3
- QYIOFABFKUOIBV-UHFFFAOYSA-N 4,5-dimethyl-1,3-dioxol-2-one Chemical compound CC=1OC(=O)OC=1C QYIOFABFKUOIBV-UHFFFAOYSA-N 0.000 description 3
- GKZFQPGIDVGTLZ-UHFFFAOYSA-N 4-(trifluoromethyl)-1,3-dioxolan-2-one Chemical compound FC(F)(F)C1COC(=O)O1 GKZFQPGIDVGTLZ-UHFFFAOYSA-N 0.000 description 3
- OYOKPDLAMOMTEE-UHFFFAOYSA-N 4-chloro-1,3-dioxolan-2-one Chemical compound ClC1COC(=O)O1 OYOKPDLAMOMTEE-UHFFFAOYSA-N 0.000 description 3
- BJWMSGRKJIOCNR-UHFFFAOYSA-N 4-ethenyl-1,3-dioxolan-2-one Chemical compound C=CC1COC(=O)O1 BJWMSGRKJIOCNR-UHFFFAOYSA-N 0.000 description 3
- SBLRHMKNNHXPHG-UHFFFAOYSA-N 4-fluoro-1,3-dioxolan-2-one Chemical compound FC1COC(=O)O1 SBLRHMKNNHXPHG-UHFFFAOYSA-N 0.000 description 3
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 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
- 229910052799 carbon Inorganic materials 0.000 description 3
- 150000005678 chain carbonates Chemical class 0.000 description 3
- 150000005676 cyclic carbonates Chemical class 0.000 description 3
- CYEDOLFRAIXARV-UHFFFAOYSA-N ethyl propyl carbonate Chemical compound CCCOC(=O)OCC CYEDOLFRAIXARV-UHFFFAOYSA-N 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 125000005641 methacryl group Chemical group 0.000 description 3
- 125000005394 methallyl group Chemical group 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- 238000001237 Raman spectrum Methods 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000010494 dissociation reaction Methods 0.000 description 2
- 230000005593 dissociations Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- KKQAVHGECIBFRQ-UHFFFAOYSA-N methyl propyl carbonate Chemical compound CCCOC(=O)OC KKQAVHGECIBFRQ-UHFFFAOYSA-N 0.000 description 2
- 229910021382 natural graphite Inorganic materials 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229910013063 LiBF 4 Inorganic materials 0.000 description 1
- 229910013684 LiClO 4 Inorganic materials 0.000 description 1
- 229910015645 LiMn Inorganic materials 0.000 description 1
- 229910013528 LiN(SO2 CF3)2 Inorganic materials 0.000 description 1
- 229910013398 LiN(SO2CF2CF3)2 Inorganic materials 0.000 description 1
- 229910013872 LiPF Inorganic materials 0.000 description 1
- 101150058243 Lipf gene Proteins 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 238000001069 Raman spectroscopy Methods 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- INKDAKMSOSCDGL-UHFFFAOYSA-N [O].OC1=CC=CC=C1 Chemical compound [O].OC1=CC=CC=C1 INKDAKMSOSCDGL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 239000002194 amorphous carbon material Substances 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- ZTCLFSRIWSZUHZ-UHFFFAOYSA-N but-1-yne;carbonic acid Chemical compound CCC#C.OC(O)=O ZTCLFSRIWSZUHZ-UHFFFAOYSA-N 0.000 description 1
- DOAYJNMCHKRFLA-UHFFFAOYSA-N carbonic acid;hex-3-yne Chemical compound OC(O)=O.CCC#CCC DOAYJNMCHKRFLA-UHFFFAOYSA-N 0.000 description 1
- SYLNJGIBLUVXCG-UHFFFAOYSA-N carbonic acid;prop-1-yne Chemical compound CC#C.OC(O)=O SYLNJGIBLUVXCG-UHFFFAOYSA-N 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- ZPBVUMUIOIGYRV-UHFFFAOYSA-N ethyl trifluoromethyl carbonate Chemical compound CCOC(=O)OC(F)(F)F ZPBVUMUIOIGYRV-UHFFFAOYSA-N 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Inorganic materials [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- GBPVMEKUJUKTBA-UHFFFAOYSA-N methyl 2,2,2-trifluoroethyl carbonate Chemical compound COC(=O)OCC(F)(F)F GBPVMEKUJUKTBA-UHFFFAOYSA-N 0.000 description 1
- PQIOSYKVBBWRRI-UHFFFAOYSA-N methylphosphonyl difluoride Chemical group CP(F)(F)=O PQIOSYKVBBWRRI-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229910052718 tin Inorganic materials 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
- 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
- H01M10/0567—Liquid materials characterised by the additives
-
- 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
- H01M10/0569—Liquid materials characterised by the solvents
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0025—Organic electrolyte
- H01M2300/0028—Organic electrolyte characterised by the solvent
- H01M2300/0037—Mixture of solvents
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
(式1)で表される環状カーボネート
(式1)で表される環状カーボネート
(1)ラマン分光スペクトルで測定される1300〜1400cm-1の範囲にあるピーク強度(ID)とラマン分光スペクトルで測定される1580〜1620cm-1の範囲にあるピーク強度(IG)との強度比であるR値(ID/IG)が、0.20以上0.40以下
(2)ラマン分光スペクトルで測定される1300〜1400cm-1の範囲にあるピークの半値幅Δ値が、40cm-1以上100cm-1以下
(3)X線回折における(110)面のピーク強度(I(110))と(004)面のピーク強度(I(004))との強度比X値(I(110)/I(004))が0.10以上0.45以下
以下に示す方法で、本実施例の捲回型電池を作製した。
図1に示す捲回型電池の70℃保存時の容量維持率及び直流抵抗(DCR)を、それぞれ以下の手順で評価した。
電池を定電流0.7Aで4.1Vまで充電し、定電圧4.1Vで電流値が20mAになるまで充電し、30分の運転休止の後、0.7Aで2.7Vまで放電した。
電池を定電流0.7Aで4.1Vまで充電し、定電圧4.1Vで電流値が20mAになるまで充電し、30分の運転休止の後、0.7Aで2.7Vまで放電した。
別途作製した電池を解体し、飛行時間型二次イオン質量分析装置(TOF−SIMS)により、負極表面の生成物を評価した。m/z=83のピーク強度は9×10-5であった。
電解液として、溶媒を容積組成比EC:DMAC:DMC:EMC=20:0:40:40で混合したものを用いた以外は実施例1と同様の方法で、電池作製・評価を行った。それらの結果を表1及び図2に示す。
電解液として、溶媒を容積組成比EC:VC:DMC:EMC=19.2:0.8:40:40で混合したものを用いた以外は実施例1と同様の方法で、電池作製・評価を行った。それらの結果を表1及び図2に示す。
電解液として、溶媒を容積組成比EC:DMAC:DMC:EMC=0:100:0:0で混合したものを用いた以外は実施例1と同様の方法で、電池作製・評価を行った。それらの結果を表1に示す。
2 正極合剤層
3 負極集電体
4 負極合剤層
7 セパレータ
8 電流遮断弁
9 負極リード
10 正極リード
11 正極インシュレータ
12 負極インシュレータ
13 負極電池缶
14 ガスケット
15 正極電池蓋
Claims (5)
- リチウムイオンを吸蔵放出可能な正極と、リチウムイオンを吸蔵放出可能な負極と、前記正極と前記負極との間に配置されたセパレータと、電解液とを有するリチウム二次電池(ジメタリルカーボネートを被膜形成剤とし、かつ電池容器内に前記被膜形成剤を収納する手段を備えるものを除く)において、
前記電解液が、エチレンカーボネート、ジメチルカーボネート、エチルメチルカーボネートと、分子内に重合性官能基を複数有する化合物とを含み、前記化合物がジメタリルカーボネートであり、 前記エチレンカーボネートに対する前記ジメタリルカーボネートの体積比が、0.005〜0.1であることを特徴とするリチウム二次電池。 - 請求項1において、
前記正極が、正極活物質として、組成式LiαMnxM1yM2zO2(式中、M1は、Co,Niから選ばれる少なくとも1種、M2は、Co,Ni,Al,B,Fe,Mg,Crから選ばれる少なくとも1種であり、x+y+z=1,0<α<1.2,0.2≦x≦0.6,0.2≦y≦0.4,0.05≦z≦0.4)で表されるリチウム複合酸化物を含むことを特徴とするリチウム二次電池。 - 請求項1において、
前記負極が、負極活物質として、炭素質材料,IV属元素を含む酸化物,IV属元素を含む窒化物の少なくとも1種からなることを特徴とするリチウム二次電池。 - 請求項1ないし3のいずれかにおいて、
前記ジメタリルカーボネートの添加量が、0.1−2.0vol%であることを特徴とする
リチウム二次電池。 - 請求項1ないし4のいずれかにおいて、
前記エチレンカーボネートに対する前記ジメタリルカーボネートの体積比が、0.02〜0.08であることを特徴とするリチウム二次電池。
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| JP2010026052A JP5171854B2 (ja) | 2010-02-09 | 2010-02-09 | リチウム二次電池 |
| CN2011100294143A CN102148396A (zh) | 2010-02-09 | 2011-01-27 | 锂离子二次电池 |
| US13/023,617 US8642217B2 (en) | 2010-02-09 | 2011-02-09 | Lithium secondary battery |
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| KR20200029625A (ko) * | 2011-12-28 | 2020-03-18 | 미쯔비시 케미컬 주식회사 | 비수계 전해액 및 비수계 전해액 이차 전지 |
| JP5459448B1 (ja) * | 2012-03-02 | 2014-04-02 | 日本電気株式会社 | 二次電池 |
| CN108767315A (zh) * | 2018-05-08 | 2018-11-06 | 桑德集团有限公司 | 一种电解液添加剂、锂电池电解液及锂离子电池 |
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| IL127889A0 (en) * | 1998-12-31 | 1999-10-28 | Almondnet Ltd | A method for transacting an advertisement transfer |
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| US20110195319A1 (en) | 2011-08-11 |
| US8642217B2 (en) | 2014-02-04 |
| CN102148396A (zh) | 2011-08-10 |
| JP2011165449A (ja) | 2011-08-25 |
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