CA2298809A1 - Gel electrolyte and gel electrolyte battery - Google Patents

Gel electrolyte and gel electrolyte battery Download PDF

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Publication number
CA2298809A1
CA2298809A1 CA002298809A CA2298809A CA2298809A1 CA 2298809 A1 CA2298809 A1 CA 2298809A1 CA 002298809 A CA002298809 A CA 002298809A CA 2298809 A CA2298809 A CA 2298809A CA 2298809 A1 CA2298809 A1 CA 2298809A1
Authority
CA
Canada
Prior art keywords
gel electrolyte
aqueous solvent
point
electrolyte
matrix polymer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002298809A
Other languages
French (fr)
Other versions
CA2298809C (en
Inventor
Mashio Shibuya
Shuji Goto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of CA2298809A1 publication Critical patent/CA2298809A1/en
Application granted granted Critical
Publication of CA2298809C publication Critical patent/CA2298809C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/22—Immobilising of electrolyte
    • 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
    • H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
    • 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
    • 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
    • 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
    • H01M2300/004—Three 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
    • H01M2300/0085—Immobilising or gelification of electrolyte
    • 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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Dispersion Chemistry (AREA)
  • Secondary Cells (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Conductive Materials (AREA)

Abstract

A gel electrolyte comprised of a non-aqueous electrolytic solution immersed in a matrix polymer, in which ion conductivity of a solvent is improved and superior cyclic characteristics are achieved. To this end, the gel electrolyte includes an electrolyte, a matrix polymer and a non-aqueous solvent. The non-aqueous solvent is a mixed solvent of ethylene carbonate (EC), propylene carbonate (PC) and .gamma.-butyrolactone (GBL). The non-aqueous solvent is of a weight composition in an area in a triangular phase diagram (EC, PC, GBL) surrounded by a point (70, 30, 0), a point (55, 15, 30), a point (15, 55, 30) and a point (30, 70, 0). A gel electrolyte battery employing this electrolyte is also disclosed.

Claims (10)

1. A gel electrolyte comprising:
an electrolyte;
a matrix polymer; and a non-aqueous solvent;
said non-aqueous solvent being a mixed solvent of ethylene carbonate (EC), propylene carbonate (PC) and .gamma.-butyrolactone (GBL);
said non-aqueous solvent being of a weight composition in an area in a triangular phase diagram (EC, PC, GBL) surrounded by a point (70, 30, 0), a point (55, 15, 30), a point (15, 55, 30) and a point (30, 70, 0).
2. The gel electrolyte according to claim 1 wherein said electrolyte contains at least one of LiPF6 and Li(CF9SO2)2, and wherein said electrolyte is contained in said non-aqueous solvent in a proportion of 0.5 mol/kg to 1.0 mol/kg in terms of the Li ion concentration.
3. The gel electrolyte according to claim 1 wherein said matrix polymer contains at least one of polyvinylidene fluoride, a polyvinylidene fluoride/hexafluoro propylene copolymer, polyethylene oxide and polypropylene oxide.
4. The gel electrolyte according to claim 3 wherein as said matrix polymer, use is made of a high molecular material of a number average molecular weight of 500000 to 700000, obtained on copolymerizing hexafluoro propylene to vinylidene fluoride in a weight ratio less than 8 wt%.
5. The gel electrolyte according to claim 1 wherein difluoro anisole is added to said non-aqueous solvent.
6. A gel electrolyte battery comprising:
a positive electrode containing an active material for the positive electrode;
a negative electrode containing an active material for the negative electrode, said negative electrode being arranged facing said positive electrode; and a gel electrolyte arranged between said positive electrode and the negative electrode;
said gel electrolyte including an electrolyte;
a matrix polymer; and a non-aqueous solvent;
said non-aqueous solvent being a mixed solvent of ethylene carbonate (EC), propylene carbonate (PC) and .gamma.-butyrolactone (GBL);
said non-aqueous solvent being of a weight composition in an area in a triangular phase diagram (EC, PC, GBL) surrounded by a point (70, 30, 0), a point (55, 15, 30), a point (15, 55, 30) and a point (30, 70, 0).
7. The gel electrolyte battery according to claim 6 wherein said electrolyte contains at least one of LiPF6 and Li(CF9SO2)2, and wherein said electrolyte is contained in said non-aqueous solvent in a proportion of 0.5 mol/kg to 1.0 mol/kg in terms of the Li ion concentration.
8. The gel electrolyte battery according to claim 6 wherein said matrix polymer contains at least one of polyvinylidene fluoride, a polyvinylidene fluoride/hexafluoro propylene copolymer, polyethylene oxide and polypropylene oxide.
9. The gel electrolyte battery according to claim 8 wherein as said matrix polymer, use is made of a high molecular material of a number average molecular weight of 500000 to 700000, obtained on copolymerizing hexafluoro propylene to vinylidene fluoride in a weight ratio less than 8 wt%.
10. The gel electrolyte battery according to claim 6 wherein difluoro anisole is added to said non-aqueous solvent.
CA2298809A 1999-02-19 2000-02-16 Gel electrolyte and gel electrolyte battery Expired - Fee Related CA2298809C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11041456A JP2000243447A (en) 1999-02-19 1999-02-19 Gel electrolyte and gel electrolyte battery
JPP11-041456 1999-02-19

Publications (2)

Publication Number Publication Date
CA2298809A1 true CA2298809A1 (en) 2000-08-19
CA2298809C CA2298809C (en) 2011-02-15

Family

ID=12608887

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2298809A Expired - Fee Related CA2298809C (en) 1999-02-19 2000-02-16 Gel electrolyte and gel electrolyte battery

Country Status (8)

Country Link
US (1) US6465134B1 (en)
EP (2) EP1619734B1 (en)
JP (1) JP2000243447A (en)
KR (1) KR100687160B1 (en)
CN (1) CN1144311C (en)
CA (1) CA2298809C (en)
DE (1) DE60023372T2 (en)
TW (1) TW494592B (en)

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KR100390099B1 (en) * 2000-09-28 2003-07-04 가부시끼가이샤 도시바 Nonaqueous electrolyte and nonaqueous electrolyte secondary cell
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KR100463188B1 (en) * 2002-06-24 2004-12-23 삼성에스디아이 주식회사 An electrolyte for a lithium ion battery and a lithium ion battery comprising the same
JP4083040B2 (en) * 2003-03-06 2008-04-30 三洋電機株式会社 Lithium battery
US20060204857A1 (en) * 2003-04-17 2006-09-14 Kejha Joseph B High performance and safer electrolytes for lithium-ion electrochemical devices
WO2004100294A1 (en) * 2003-04-17 2004-11-18 Kejha Joseph B High performance and safer electrolytes for lithium-ion electrochemical devices
US20040253520A1 (en) * 2003-05-13 2004-12-16 Wensley C. Glen Polyimide matrix electrolyte and improved batteries therefrom
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US20040229127A1 (en) 2003-05-13 2004-11-18 Wensley C. Glen Polyimide matrix electrolyte
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US20070212578A1 (en) * 2006-03-13 2007-09-13 More Energy Ltd. Direct liquid fuel cell comprising a hydride fuel and a gel electrolyte
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US20090111012A1 (en) * 2007-10-31 2009-04-30 Sony Corporation Secondary battery
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KR101943647B1 (en) * 2009-02-23 2019-01-29 가부시키가이샤 무라타 세이사쿠쇼 Nonaqueous electrolyte composition, nonaqueous electrolyte secondary battery, and method for manufacturing nonaqueous electrolyte secondary battery
TWI387140B (en) * 2009-05-22 2013-02-21 Univ Shu Te Light emitting diode
CN101916878B (en) * 2010-08-27 2012-12-12 上海奥威科技开发有限公司 Low-temperature organic electrolyte taking gamma-butyrolactone as base solvent and application thereof
US10658633B2 (en) * 2011-02-16 2020-05-19 Panasonic Intellectual Property Management Co., Ltd. Battery and manufacturing method of the battery
JP6204004B2 (en) * 2011-08-31 2017-09-27 株式会社半導体エネルギー研究所 Manufacturing method of secondary battery
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CN111628216A (en) * 2020-05-18 2020-09-04 华中科技大学 A kind of gel polymer electrolyte, its preparation method and application
JP7513983B2 (en) 2020-09-17 2024-07-10 マツダ株式会社 Lithium-ion secondary battery and its manufacturing method

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Also Published As

Publication number Publication date
CN1267926A (en) 2000-09-27
EP1619734A1 (en) 2006-01-25
EP1619734B1 (en) 2013-05-01
US6465134B1 (en) 2002-10-15
TW494592B (en) 2002-07-11
DE60023372D1 (en) 2005-12-01
KR100687160B1 (en) 2007-02-27
EP1030398B9 (en) 2006-10-04
DE60023372T2 (en) 2006-07-06
CA2298809C (en) 2011-02-15
JP2000243447A (en) 2000-09-08
EP1030398B1 (en) 2005-10-26
CN1144311C (en) 2004-03-31
EP1030398A1 (en) 2000-08-23
KR20000062566A (en) 2000-10-25

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Effective date: 20160216