CA2393095A1 - Microporous membrane - Google Patents

Microporous membrane Download PDF

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Publication number
CA2393095A1
CA2393095A1 CA002393095A CA2393095A CA2393095A1 CA 2393095 A1 CA2393095 A1 CA 2393095A1 CA 002393095 A CA002393095 A CA 002393095A CA 2393095 A CA2393095 A CA 2393095A CA 2393095 A1 CA2393095 A1 CA 2393095A1
Authority
CA
Canada
Prior art keywords
polymer
liquid
solvent
electrolyte
film
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
CA002393095A
Other languages
French (fr)
Other versions
CA2393095C (en
Inventor
Fazlil Coowar
Esam Kronfli
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.)
Nexeon Ltd
Original Assignee
Individual
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 GBGB9930291.1A external-priority patent/GB9930291D0/en
Priority claimed from GB0013130A external-priority patent/GB0013130D0/en
Application filed by Individual filed Critical Individual
Publication of CA2393095A1 publication Critical patent/CA2393095A1/en
Application granted granted Critical
Publication of CA2393095C publication Critical patent/CA2393095C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/20—Manufacture of shaped structures of ion-exchange resins
    • C08J5/22—Films, membranes or diaphragms
    • C08J5/2206—Films, membranes or diaphragms based on organic and/or inorganic macromolecular compounds
    • C08J5/2218—Synthetic macromolecular compounds
    • C08J5/2231—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds
    • C08J5/2237—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds containing fluorine
    • 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
    • H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2327/16—Homopolymers or copolymers of vinylidene fluoride
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Dispersion Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Cell Separators (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Secondary Cells (AREA)

Abstract

A porous polymer membrane is made by dissolving a polymer consisting primari ly of vinylidene fluoride in a suitable liquid, casting the polymer solution to form a thin layer on a substrate, and then slowly evaporating the liquid pha se (without contacting the layer with any other liquids) so that a substantiall y uniform microporous membrane of polymer is formed. The liquid may comprise a solvent for the polymer, combined with a small proportion of a non-solvent which dissolves in the solvent. Alternatively the liquid may be a latent solvent. The evaporation process may be performed at a temperature above ambient temperature, and involves exposing the film to dry gas. The microporous membrane or film may be used to form a solid electrolyte for a lithium cell, by soaking it in a non-aqueous liquid electrolyte, the film combining with the electrolyte solution to form a solid electrolyte or a gelled electrolyte.
CA002393095A 1999-12-23 2000-12-20 Microporous membrane Expired - Fee Related CA2393095C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GBGB9930291.1A GB9930291D0 (en) 1999-12-23 1999-12-23 Microporous membrane
GB9930291.1 1999-12-23
GB0013130.0 2000-05-31
GB0013130A GB0013130D0 (en) 2000-05-31 2000-05-31 Microporous membrane
PCT/GB2000/004889 WO2001048063A1 (en) 1999-12-23 2000-12-20 Microporous membrane

Publications (2)

Publication Number Publication Date
CA2393095A1 true CA2393095A1 (en) 2001-07-05
CA2393095C CA2393095C (en) 2009-04-21

Family

ID=26244384

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002393095A Expired - Fee Related CA2393095C (en) 1999-12-23 2000-12-20 Microporous membrane

Country Status (8)

Country Link
US (1) US20030022951A1 (en)
EP (1) EP1265950B1 (en)
JP (1) JP2003518537A (en)
KR (1) KR20020076246A (en)
AU (1) AU2203901A (en)
CA (1) CA2393095C (en)
DE (1) DE60021617T2 (en)
WO (1) WO2001048063A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0211164D0 (en) * 2002-05-16 2002-06-26 Accentus Plc Electrochemical cell assembly
GB0216834D0 (en) * 2002-07-19 2002-08-28 Accentus Plc Porous polymeric membrane
EP1713728A2 (en) * 2004-01-20 2006-10-25 Boundless Corp. Highly microporous polymers and methods for producing and using the same
JP5897334B2 (en) * 2010-03-24 2016-03-30 日本碍子株式会社 Method for producing silica film
FR2958190B1 (en) * 2010-04-01 2012-05-18 Commissariat Energie Atomique PROCESS FOR FORMING VINYLIDENE POLYFLUORIDE-TYPE FLUORINE POLYMER FILM USED AS LITHIUM BATTERY SEPARATOR
CN102649315A (en) * 2011-02-23 2012-08-29 北京化工大学 Polyvinylidene fluoride microporous film prepared through gelatin extrusion tape casting method
CN102286158B (en) * 2011-06-23 2012-12-12 中南大学 Method for preparing porous composite polymer electrolyte film through gas volatilization
JP2016081829A (en) * 2014-10-21 2016-05-16 トヨタ自動車株式会社 Method for manufacturing electrode for lithium ion secondary battery
CN107337887B (en) * 2017-07-31 2021-11-09 韩山师范学院 Liquid rapid film-forming agent for preventing pine wood nematode disease diffusion
FR3089226B1 (en) * 2018-11-30 2021-08-06 Arkema France Process for preparing porous fluoropolymer films
CN109888290B (en) * 2019-03-19 2021-01-22 郑州中科新兴产业技术研究院 High-rate lithium ion battery, aging and formation method
CN113782911A (en) * 2021-09-03 2021-12-10 北京阳光鸿志电气工程技术有限公司 Modified diaphragm and solid vanadium battery assembled by same
KR102885279B1 (en) * 2022-08-11 2025-11-11 삼성에스디아이 주식회사 Negative electrode for rechargeable battery and rechargeable battery including the same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1552942A (en) * 1975-07-17 1979-09-19 Sumitomo Electric Industries Process for producing a porous material having a fine pore size
US4384047A (en) * 1980-03-28 1983-05-17 Pennwalt Corporation Porous vinylidene fluoride polymer membrane and process for its preparation
US5444097A (en) * 1992-07-07 1995-08-22 Millipore Corporation Porous polymeric structures and a method of making such structures by means of heat-induced phase separation
US5296318A (en) * 1993-03-05 1994-03-22 Bell Communications Research, Inc. Rechargeable lithium intercalation battery with hybrid polymeric electrolyte
TW342537B (en) * 1995-03-03 1998-10-11 Atochem North America Elf Polymeric electrode, electrolyte, article of manufacture and composition
RU2119817C1 (en) * 1995-10-23 1998-10-10 Акционерное общество открытого типа "Полимерсинтез" Porous fluorocarbon membrane, method of its preparation, and cartridge filter based on this membrane
GB2309701B (en) * 1996-01-31 1999-06-16 Aea Technology Plc Organic electrolyte composition
GB2309703B (en) * 1996-01-31 1999-06-16 Aea Technology Plc Polymer electrolyte
WO1998031064A1 (en) * 1997-01-10 1998-07-16 Motorola Inc. Polymer electrolyte solvent for electrochemical cell

Also Published As

Publication number Publication date
JP2003518537A (en) 2003-06-10
CA2393095C (en) 2009-04-21
KR20020076246A (en) 2002-10-09
US20030022951A1 (en) 2003-01-30
AU2203901A (en) 2001-07-09
WO2001048063A1 (en) 2001-07-05
DE60021617D1 (en) 2005-09-01
DE60021617T2 (en) 2005-12-29
EP1265950B1 (en) 2005-07-27
EP1265950A1 (en) 2002-12-18

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Effective date: 20171220