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GB1451892A - Separators for electrolytic cells - Google Patents

Separators for electrolytic cells

Info

Publication number
GB1451892A
GB1451892A GB4413772A GB4413772A GB1451892A GB 1451892 A GB1451892 A GB 1451892A GB 4413772 A GB4413772 A GB 4413772A GB 4413772 A GB4413772 A GB 4413772A GB 1451892 A GB1451892 A GB 1451892A
Authority
GB
United Kingdom
Prior art keywords
graft
particulate
particulate polymer
polymer
particles
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.)
Expired
Application number
GB4413772A
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.)
SECR DEFENCE
UK Secretary of State for Defence
Original Assignee
SECR DEFENCE
UK Secretary of State for Defence
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 SECR DEFENCE, UK Secretary of State for Defence filed Critical SECR DEFENCE
Priority to GB4413772A priority Critical patent/GB1451892A/en
Priority to CA181,809A priority patent/CA1003488A/en
Priority to DE2348180A priority patent/DE2348180C2/en
Priority to JP48108355A priority patent/JPS5759629B2/ja
Priority to FR7334389A priority patent/FR2200055B1/fr
Priority to US05/657,629 priority patent/US4144301A/en
Publication of GB1451892A publication Critical patent/GB1451892A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
    • 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
    • H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
    • H01M50/417—Polyolefins
    • 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
    • H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
    • H01M50/42—Acrylic resins
    • 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
    • H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
    • H01M50/423—Polyamide resins
    • 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
    • H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
    • H01M50/426—Fluorocarbon polymers
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Cell Separators (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Graft Or Block Polymers (AREA)
  • Fuel Cell (AREA)
  • Inert Electrodes (AREA)

Abstract

1451892 Coated electrode D E F E N C E SECRETARY OF STATE FOR 19 Sept 1973 [25 Sept 1972] 44137/72 Heading B2E [Also in Division H1] A separator positioned between a positive electrode and a negative in an electrolytic cell comprises a moulding of particulate polymer material comprising particles having a nucleus of thermoplastic polymer material surrounded by a cross-linked polymer layer and an outer polar graft-copolymer layer. Preferably at least 30% of the particles have a diameter less than 100. The thermoplastics material forming the nucleus of the particles may also form the base polymer of the outer graft-copolymer layer and when cross-linked a cross-linked polymer layer. Preferably the thermoplastics material is selected from polyethylene, polypropylene, polytetrafluoroethylene, partially fluorinated polyolefins, partially chlorinated polyolefins or nylons. The comonomer of the outer graft-copolymer layer is preferably selected from acrylic acid, methacrylic acid, acrylamides or methacrylamides. The moulding form the separator may be produced by depositing the moulding on the surface of one of the electrodes by sintering the particulate polymer material into a coherent coating around the electrode using heat and/or pressure. Alternatively the particulate polymer material may be moulded into a case, envelope, sheet or film which is used to wrap around or encase one of the electrodes. The particulate polymer may be prepared by graftpolymerisation of a particulate thermoplastic polymer in a solution of a reactive monomer. In a typical example the particulate polymer is prepared by graft-polymerisation of polyethylene powder in an aqueous solution of acrylic acid. The grafted powder is then placed in a metal template on both sides of a silver electrode, the assembly placed between two sheets of photographic glazing plate and pressed in an electrically heated, hydraulic press. The electrolytic cell may be a battery, fuel cell, cell used for the production of metals and compounds by electrochemical separation methods.
GB4413772A 1972-09-25 1972-09-25 Separators for electrolytic cells Expired GB1451892A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB4413772A GB1451892A (en) 1972-09-25 1972-09-25 Separators for electrolytic cells
CA181,809A CA1003488A (en) 1972-09-25 1973-09-24 Separators for electrolytic cells
DE2348180A DE2348180C2 (en) 1972-09-25 1973-09-25 Electrolytic or electrolytic cells with separator or partition
JP48108355A JPS5759629B2 (en) 1972-09-25 1973-09-25
FR7334389A FR2200055B1 (en) 1972-09-25 1973-09-25
US05/657,629 US4144301A (en) 1972-09-25 1976-02-12 Separators for electrolytic cells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4413772A GB1451892A (en) 1972-09-25 1972-09-25 Separators for electrolytic cells

Publications (1)

Publication Number Publication Date
GB1451892A true GB1451892A (en) 1976-10-06

Family

ID=10431963

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4413772A Expired GB1451892A (en) 1972-09-25 1972-09-25 Separators for electrolytic cells

Country Status (5)

Country Link
JP (1) JPS5759629B2 (en)
CA (1) CA1003488A (en)
DE (1) DE2348180C2 (en)
FR (1) FR2200055B1 (en)
GB (1) GB1451892A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014459A1 (en) * 1979-02-05 1980-08-20 Japan Atomic Energy Research Institute Process for production of separators for use in cells
DE3131035A1 (en) * 1980-08-28 1982-03-25 RAI Research Corp., 11787 Haupaugue, N.Y. "METHOD FOR THE PRODUCTION OF MEMBRANES FOR ELECTROCHEMICAL CELLS AND THEIR USE IN PRIMARY AND SECONDARY ELEMENTS"
US4377010A (en) 1978-11-08 1983-03-22 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Biocompatible material comprising a base polymer bulk graft polymerized with an ethylenically unsaturated carboxylic acid
US4785059A (en) * 1984-05-10 1988-11-15 The Secretary Of State For Defence In Her Brittanic Majesty's Government Of The United Kingdon Of Great Britain And Northern Ireland Process for the preparation of a hydrophilic water swellable graft copolymer

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS526374A (en) * 1975-07-07 1977-01-18 Tokuyama Soda Co Ltd Anode structure for electrolysis
JPS5425432A (en) * 1977-07-26 1979-02-26 Japan Atomic Energy Res Inst Method of making cell diaphragm
CA1124436A (en) * 1977-09-30 1982-05-25 James J. Bolstad Separator materials for secondary alkaline battery systems and method for analytically determining the suitability for such materials
DE3716495A1 (en) * 1987-05-16 1988-11-24 Karl Dr Bratzler Process and apparatus for preparing chemically pure oxygen to be used for therapeutic purposes
FR2625842B1 (en) * 1988-01-07 1990-01-26 Accumulateurs Fixes METHOD FOR MANUFACTURING A SEPARATOR FOR AN ALKALINE ACCUMULATOR AND SEPARATOR OBTAINED

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL247957A (en) * 1959-02-03
US3427206A (en) * 1965-02-26 1969-02-11 Rai Res Corp Separator for alkaline cells
US3329559A (en) * 1966-04-08 1967-07-04 Gen Motors Corp Method of making battery separators of alpha cellulose coated with polyethylene
US3585081A (en) * 1968-09-16 1971-06-15 Alfred Harris Mirman Battery separator
GB1328510A (en) * 1969-12-22 1973-08-30 Secr Defence Self contained electrode separator for primary and secondary electrolytic cells
GB1451891A (en) * 1972-09-25 1976-10-06 Secr Defence Graft copolymer mouldings

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4377010A (en) 1978-11-08 1983-03-22 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Biocompatible material comprising a base polymer bulk graft polymerized with an ethylenically unsaturated carboxylic acid
EP0014459A1 (en) * 1979-02-05 1980-08-20 Japan Atomic Energy Research Institute Process for production of separators for use in cells
DE3131035A1 (en) * 1980-08-28 1982-03-25 RAI Research Corp., 11787 Haupaugue, N.Y. "METHOD FOR THE PRODUCTION OF MEMBRANES FOR ELECTROCHEMICAL CELLS AND THEIR USE IN PRIMARY AND SECONDARY ELEMENTS"
US4785059A (en) * 1984-05-10 1988-11-15 The Secretary Of State For Defence In Her Brittanic Majesty's Government Of The United Kingdon Of Great Britain And Northern Ireland Process for the preparation of a hydrophilic water swellable graft copolymer

Also Published As

Publication number Publication date
CA1003488A (en) 1977-01-11
JPS5759629B2 (en) 1982-12-15
DE2348180C2 (en) 1982-08-26
JPS4993277A (en) 1974-09-05
FR2200055A1 (en) 1974-04-19
DE2348180A1 (en) 1974-04-04
FR2200055B1 (en) 1979-05-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19930918