JP5278442B2 - 非水電解液二次電池 - Google Patents
非水電解液二次電池 Download PDFInfo
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- JP5278442B2 JP5278442B2 JP2010545638A JP2010545638A JP5278442B2 JP 5278442 B2 JP5278442 B2 JP 5278442B2 JP 2010545638 A JP2010545638 A JP 2010545638A JP 2010545638 A JP2010545638 A JP 2010545638A JP 5278442 B2 JP5278442 B2 JP 5278442B2
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- 239000011255 nonaqueous electrolyte Substances 0.000 title claims description 60
- 239000003792 electrolyte Substances 0.000 claims description 13
- DEUISMFZZMAAOJ-UHFFFAOYSA-N lithium dihydrogen borate oxalic acid Chemical group B([O-])(O)O.C(C(=O)O)(=O)O.C(C(=O)O)(=O)O.[Li+] DEUISMFZZMAAOJ-UHFFFAOYSA-N 0.000 claims description 13
- 229910003002 lithium salt Inorganic materials 0.000 claims description 11
- 159000000002 lithium salts Chemical class 0.000 claims description 11
- 229910019142 PO4 Inorganic materials 0.000 claims description 8
- 239000003125 aqueous solvent Substances 0.000 claims description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 8
- 239000010452 phosphate Substances 0.000 claims description 8
- 150000001450 anions Chemical class 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 7
- 239000000654 additive Substances 0.000 description 12
- 230000014759 maintenance of location Effects 0.000 description 12
- PQIOSYKVBBWRRI-UHFFFAOYSA-N methylphosphonyl difluoride Chemical group CP(F)(F)=O PQIOSYKVBBWRRI-UHFFFAOYSA-N 0.000 description 10
- 239000000203 mixture Substances 0.000 description 9
- 230000000996 additive effect Effects 0.000 description 8
- 239000002131 composite material Substances 0.000 description 8
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 6
- 229910001386 lithium phosphate Inorganic materials 0.000 description 6
- 239000007773 negative electrode material Substances 0.000 description 6
- TWQULNDIKKJZPH-UHFFFAOYSA-K trilithium;phosphate Chemical compound [Li+].[Li+].[Li+].[O-]P([O-])([O-])=O TWQULNDIKKJZPH-UHFFFAOYSA-K 0.000 description 6
- 239000008151 electrolyte solution Substances 0.000 description 5
- -1 lithium hexafluorophosphate Chemical compound 0.000 description 5
- 239000007774 positive electrode material Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 3
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 description 3
- 239000005022 packaging material Substances 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910013870 LiPF 6 Inorganic materials 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- SOXUFMZTHZXOGC-UHFFFAOYSA-N [Li].[Mn].[Co].[Ni] Chemical compound [Li].[Mn].[Co].[Ni] SOXUFMZTHZXOGC-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- TZIHFWKZFHZASV-UHFFFAOYSA-N methyl formate Chemical compound COC=O TZIHFWKZFHZASV-UHFFFAOYSA-N 0.000 description 2
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 1
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 1
- 229910015015 LiAsF 6 Inorganic materials 0.000 description 1
- 229910013063 LiBF 4 Inorganic materials 0.000 description 1
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- 229910013528 LiN(SO2 CF3)2 Inorganic materials 0.000 description 1
- 229910013385 LiN(SO2C2F5)2 Inorganic materials 0.000 description 1
- 229910014422 LiNi1/3Mn1/3Co1/3O2 Inorganic materials 0.000 description 1
- HCLGRIKAYORQCQ-UHFFFAOYSA-M P(=O)([O-])(O)O.[Li+].C(C(=O)O)(=O)OF.C(C(=O)O)(=O)OF Chemical compound P(=O)([O-])(O)O.[Li+].C(C(=O)O)(=O)OF.C(C(=O)O)(=O)OF HCLGRIKAYORQCQ-UHFFFAOYSA-M 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- NXPZICSHDHGMGT-UHFFFAOYSA-N [Co].[Mn].[Li] Chemical compound [Co].[Mn].[Li] NXPZICSHDHGMGT-UHFFFAOYSA-N 0.000 description 1
- PFYQFCKUASLJLL-UHFFFAOYSA-N [Co].[Ni].[Li] Chemical compound [Co].[Ni].[Li] PFYQFCKUASLJLL-UHFFFAOYSA-N 0.000 description 1
- ZYXUQEDFWHDILZ-UHFFFAOYSA-N [Ni].[Mn].[Li] Chemical compound [Ni].[Mn].[Li] ZYXUQEDFWHDILZ-UHFFFAOYSA-N 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002482 conductive additive Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- DGTVXEHQMSJRPE-UHFFFAOYSA-M difluorophosphinate Chemical compound [O-]P(F)(F)=O DGTVXEHQMSJRPE-UHFFFAOYSA-M 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- DWYMPOCYEZONEA-UHFFFAOYSA-L fluoridophosphate Chemical compound [O-]P([O-])(F)=O DWYMPOCYEZONEA-UHFFFAOYSA-L 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- WBJINCZRORDGAQ-UHFFFAOYSA-N formic acid ethyl ester Natural products CCOC=O WBJINCZRORDGAQ-UHFFFAOYSA-N 0.000 description 1
- 239000011245 gel electrolyte Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000005001 laminate film Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 description 1
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229940074371 monofluorophosphate Drugs 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 239000011356 non-aqueous organic solvent Substances 0.000 description 1
- 239000010450 olivine Substances 0.000 description 1
- 229910052609 olivine Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 229910021384 soft carbon Inorganic materials 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
-
- 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
- H01M10/0568—Liquid materials characterised by the solutes
-
- 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
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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)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Secondary Cells (AREA)
Description
正極活物質として組成式LiNi1/3Mn1/3Co1/3O2で表されるリチウム−ニッケル−マンガン−コバルト複合酸化物(LNMCO)と、導電助剤としての炭素と、バインダーとしてのポリフッ化ビニリデン(PVDF)とを重量比率で90:7:3になるように配合して、N−メチル2−ピロリドン(NMP)と混錬することにより、スラリーを作製した。このスラリーを、集電体としてのアルミニウム箔の両面に塗布し、乾燥させた後、ロールプレスにて圧延することによって正極を作製した。
負極活物質としての天然黒鉛粉末と、バインダーとしてのPVDFとを重量比率で95:5になるように配合して、NMPと混錬することにより、スラリーを作製した。このスラリーを、集電体としての銅箔の両面に塗布し、乾燥させた後、ロールプレスにて圧延することによって負極を作製した。
溶媒は、ジメチルカーボネート(DMC)とエチルメチルカーボネート(EMC)とエチレンカーボネート(EC)とを体積比率で1:1:1になるように調製することにより準備した。この溶媒に、電解質としての六フッ化リン酸リチウム(LiPF6)を1mol/Lの割合で溶解させることにより、非水系電解液を作製した。
上記で作製した正極と負極にリードタブを設けた。この正極と負極の間に多孔性セパレータを介在させて扁平状に捲回したものを、アルミニウムを中間層として含むラミネートフィルムからなる外包材の内部に収納した。その後、上記で作製した非水系電解液を外包材の内部に注入した後、外包材の開口部を封止することにより、電池容量が260mAhの非水電解液二次電池を作製した。
充電電流を75mAとして電圧が4.2Vになるまで各電池に充電した後、さらに電圧を4.2Vに維持した状態で充電電流を減少させ、充電電流が12.5mAになるまで各電池に充電した。そして、放電電流を250mAとして電圧が2.5Vになるまで各電池を放電したときの初回放電容量を測定した。
高温サイクル特性として、温度60℃で充放電サイクルを100サイクル繰り返した後の容量維持率を測定した。具体的には、温度60℃の雰囲気下において充電電流を500mAとして電圧が4.2Vになるまで各電池に充電した後、さらに電圧を4.2Vに維持した状態で充電電流を減少させ、充電電流が12.5mAになるまで各電池に充電した。そして、放電電流を500mAとして電圧が2.5Vになるまで各電池を放電したときの放電容量を測定した。このような充放電を1サイクルとして100サイクル繰り返した。1サイクル後に測定した放電容量に対する、100サイクル後に測定した放電容量の割合を次の式で算出し、得られた値を100サイクル後の容量維持率(%)として評価した。
Claims (2)
- 非水系溶媒と電解質とを含む非水系電解液を備えた非水電解液二次電池であって、
前記非水系電解液に対して、オキサラト錯体をアニオンとするリチウム塩が少なくとも2種類添加され、
前記リチウム塩は、リチウムビスオキサレートボレート(Li[B(C 2 O 4 ) 2 ])とジフルオロ(ビスオキサラト)リン酸リチウム(Li[PF 2 (C 2 O 4 ) 2 ])であり、
前記非水系電解液100重量部に対して、リチウムビスオキサレートボレートが0.3重量部以上3.0重量部以下、かつ、ジフルオロ(ビスオキサラト)リン酸リチウムが0.3重量部以上2.0重量部以下添加されている、非水電解液二次電池。 - 前記非水系電解液100重量部に対して、リチウムビスオキサレートボレートが0.5重量部以上1.5重量部以下、かつ、ジフルオロ(ビスオキサラト)リン酸リチウムが0.5重量部以上1.0重量部以下添加されている、請求項1に記載の非水電解液二次電池。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010545638A JP5278442B2 (ja) | 2009-01-06 | 2009-12-24 | 非水電解液二次電池 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009000849 | 2009-01-06 | ||
JP2009000849 | 2009-01-06 | ||
JP2010545638A JP5278442B2 (ja) | 2009-01-06 | 2009-12-24 | 非水電解液二次電池 |
PCT/JP2009/007157 WO2010079565A1 (ja) | 2009-01-06 | 2009-12-24 | 非水電解液二次電池 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2010079565A1 JPWO2010079565A1 (ja) | 2012-06-21 |
JP5278442B2 true JP5278442B2 (ja) | 2013-09-04 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2010545638A Active JP5278442B2 (ja) | 2009-01-06 | 2009-12-24 | 非水電解液二次電池 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20110256458A1 (ja) |
JP (1) | JP5278442B2 (ja) |
CN (1) | CN102273000A (ja) |
WO (1) | WO2010079565A1 (ja) |
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US10186733B2 (en) | 2015-01-23 | 2019-01-22 | Central Glass Co., Ltd. | Electrolytic solution for nonaqueous electrolytic solution secondary batteries and nonaqueous electrolytic solution secondary battery |
KR101958880B1 (ko) * | 2015-01-23 | 2019-03-15 | 샌트랄 글래스 컴퍼니 리미티드 | 비수전해액 전지용 전해액 및 비수전해액 전지 |
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JP5476273B2 (ja) * | 2010-10-27 | 2014-04-23 | 信越化学工業株式会社 | 非水電解液二次電池 |
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JP5962041B2 (ja) * | 2011-02-10 | 2016-08-03 | 三菱化学株式会社 | 非水系電解液二次電池及び非水系電解液 |
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JP5988134B2 (ja) * | 2011-05-11 | 2016-09-07 | 株式会社Gsユアサ | 蓄電素子 |
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CA2844466C (en) | 2011-09-02 | 2021-08-17 | E. I. Du Pont De Nemours And Company | Fluorinated electrolyte compositions |
JP5884967B2 (ja) * | 2011-10-18 | 2016-03-15 | トヨタ自動車株式会社 | 非水電解液二次電池及びその製造方法 |
JP5998645B2 (ja) * | 2012-05-30 | 2016-09-28 | セントラル硝子株式会社 | 非水電解液電池用電解液、及びこれを用いた非水電解液電池 |
WO2013180783A1 (en) | 2012-06-01 | 2013-12-05 | E. I. Du Pont De Nemours And Company | Fluorinated electrolyte compositions |
US10074874B2 (en) | 2012-06-01 | 2018-09-11 | Solvay Sa | Additives to improve electrolyte performance in lithium ion batteries |
JP5765582B2 (ja) * | 2012-06-29 | 2015-08-19 | トヨタ自動車株式会社 | 非水電解液二次電池 |
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US10454139B2 (en) | 2015-01-23 | 2019-10-22 | Central Glass Co., Ltd. | Electrolytic solution for nonaqueous electrolytic solution secondary batteries and nonaqueous electrolytic solution secondary battery |
KR20180038038A (ko) * | 2015-08-12 | 2018-04-13 | 샌트랄 글래스 컴퍼니 리미티드 | 비수계 전해액 및 그것을 이용한 비수계 전해액 전지 |
KR102016047B1 (ko) | 2015-08-12 | 2019-08-29 | 샌트랄 글래스 컴퍼니 리미티드 | 비수계 전해액 및 그것을 이용한 비수계 전해액 전지 |
Also Published As
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US20110256458A1 (en) | 2011-10-20 |
CN102273000A (zh) | 2011-12-07 |
JPWO2010079565A1 (ja) | 2012-06-21 |
WO2010079565A1 (ja) | 2010-07-15 |
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