SG129214A1 - Polymeric mesoporous separator elements for laminated lithium-ion rechargeable batteries - Google Patents

Polymeric mesoporous separator elements for laminated lithium-ion rechargeable batteries

Info

Publication number
SG129214A1
SG129214A1 SG200103985A SG200103985A SG129214A1 SG 129214 A1 SG129214 A1 SG 129214A1 SG 200103985 A SG200103985 A SG 200103985A SG 200103985 A SG200103985 A SG 200103985A SG 129214 A1 SG129214 A1 SG 129214A1
Authority
SG
Singapore
Prior art keywords
nonsolvent
membrane
polymeric material
solvent
droplets
Prior art date
Application number
SG200103985A
Inventor
Aurelien Dupasquier
Jean-Marie Tarascon
Original Assignee
Valence Technology Inc
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
Priority claimed from US09/689,170 external-priority patent/US6537334B1/en
Application filed by Valence Technology Inc filed Critical Valence Technology Inc
Publication of SG129214A1 publication Critical patent/SG129214A1/en

Links

Classifications

    • 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
    • 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
    • H01M50/411—Organic 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Dispersion Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Cell Separators (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A mesoporous polymeric membrane for use as an ionically-conductive inter-electrode separator in a rechargeable battery cell is prepared from a coatable composition comprising a polymeric material, a volatile fluid solvent for the polymeric material, and a second fluid miscible with and of lesser volatility than the solvent, the second fluid being a nonsolvent exhibiting no significant solvency for the polymeric material. A layer is cast from the composition to form a layer which is gelled and solidified to a self-supporting membrane by volatilizing the solvent and nonsolvent coating vehicle fluids under conditions in which the solvent volatilizes at a rate substantially faster than that of the nonsolvent. As a result the polymeric material initially gells in the more nonsolvent-predominant regions of the layer and isolates the nonsolvent as droplets substantially uniformly distributed throughout a matrix of polymeric material. The nonsolvent is subsequently volatilized from the droplets to yield a like distribution of mesopore voids throughout said membrane matrix. The porous membrane is capable of absorbing significant amounts of electrolyte solution to provide suitable ionic conductivity for use in rechargeable battery cells. The addition of inert particulate filler to the coating composition provides further strength in the body of the membrane and, due to preferential accumulation of particles in the dispersed nonsolvent droplets, provides particulate support within the membrane mesopores which prevents collapse of the voids at cell fabrication laminating temperatures and thus maintains electrolyte absorption capability.
SG200103985A 2000-10-12 2001-06-29 Polymeric mesoporous separator elements for laminated lithium-ion rechargeable batteries SG129214A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/689,170 US6537334B1 (en) 1998-11-12 2000-10-12 Polymeric mesoporous separator elements for laminated lithium-ion rechargeable batteries

Publications (1)

Publication Number Publication Date
SG129214A1 true SG129214A1 (en) 2007-02-26

Family

ID=24767327

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200103985A SG129214A1 (en) 2000-10-12 2001-06-29 Polymeric mesoporous separator elements for laminated lithium-ion rechargeable batteries

Country Status (5)

Country Link
JP (1) JP2002134092A (en)
KR (1) KR100790039B1 (en)
CN (1) CN1280929C (en)
SG (1) SG129214A1 (en)
TW (1) TW508855B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007042554B4 (en) * 2007-09-07 2017-05-11 Carl Freudenberg Kg Nonwoven with particle filling
JP5485741B2 (en) * 2010-02-12 2014-05-07 株式会社巴川製紙所 Manufacturing method of separator for electronic parts
US8470468B2 (en) * 2010-02-12 2013-06-25 GM Global Technology Operations LLC Lithium-ion batteries with coated separators

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953241A (en) * 1970-03-12 1976-04-27 Westinghouse Electric Corporation Heat resistant substrates and battery separators made therefrom
GB2169129A (en) * 1984-12-28 1986-07-02 Ppg Industries Inc Battery separator
US4849144A (en) * 1985-07-11 1989-07-18 Scimat Limited Process for making a separator for an electrochemical device
US5418091A (en) * 1993-03-05 1995-05-23 Bell Communications Research, Inc. Polymeric electrolytic cell separator membrane
WO1999059218A1 (en) * 1998-05-12 1999-11-18 Ecole Polytechnique Federale De Lausanne (Epfl) Sri Primary or secondary electrochemical generator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0115725Y1 (en) * 1995-06-22 1998-04-21 김태구 The fixing device of an engine hood
JPH1116561A (en) * 1997-06-23 1999-01-22 Elf Atochem Japan Kk Battery separator, its manufacture and nonaqueous secondary battery
FR2766295B1 (en) * 1997-07-17 1999-09-24 Alsthom Cge Alcatel POLYMERIC SEPARATOR, MANUFACTURING PROCESS AND ELECTROCHEMICAL GENERATOR INCLUDING IT
US5962162A (en) * 1997-10-10 1999-10-05 Ultralife Batteries Inc. Lithium ion polymer cell separator
JPH11152366A (en) * 1997-11-19 1999-06-08 Asahi Chem Ind Co Ltd Porous membrane of vinylidene fluoride-based resin
FR2777698B1 (en) * 1998-04-16 2000-05-12 Alsthom Cge Alcatel SEPARATOR COMPRISING A MACROPOROUS MATRIX AND A POROUS POLYMER, ITS MANUFACTURING METHOD, ELECTROCHEMICAL GENERATOR COMPRISING SAME AND THE MANUFACTURING METHOD THEREOF

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953241A (en) * 1970-03-12 1976-04-27 Westinghouse Electric Corporation Heat resistant substrates and battery separators made therefrom
GB2169129A (en) * 1984-12-28 1986-07-02 Ppg Industries Inc Battery separator
US4849144A (en) * 1985-07-11 1989-07-18 Scimat Limited Process for making a separator for an electrochemical device
US5418091A (en) * 1993-03-05 1995-05-23 Bell Communications Research, Inc. Polymeric electrolytic cell separator membrane
WO1999059218A1 (en) * 1998-05-12 1999-11-18 Ecole Polytechnique Federale De Lausanne (Epfl) Sri Primary or secondary electrochemical generator

Also Published As

Publication number Publication date
KR100790039B1 (en) 2008-01-02
CN1280929C (en) 2006-10-18
TW508855B (en) 2002-11-01
CN1349263A (en) 2002-05-15
KR20020029295A (en) 2002-04-18
JP2002134092A (en) 2002-05-10

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