GB1374125A - Gas diffusion electrodes in methods for their manufacture and electrochemical electricity generators including such electrodes - Google Patents

Gas diffusion electrodes in methods for their manufacture and electrochemical electricity generators including such electrodes

Info

Publication number
GB1374125A
GB1374125A GB4923871A GB4923871A GB1374125A GB 1374125 A GB1374125 A GB 1374125A GB 4923871 A GB4923871 A GB 4923871A GB 4923871 A GB4923871 A GB 4923871A GB 1374125 A GB1374125 A GB 1374125A
Authority
GB
United Kingdom
Prior art keywords
electrode
electrodes
layer
zinc
electrolyte
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
GB4923871A
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.)
Les Piles Wonder SA
Original Assignee
Les Piles Wonder SA
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 Les Piles Wonder SA filed Critical Les Piles Wonder SA
Publication of GB1374125A publication Critical patent/GB1374125A/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
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/08—Fuel cells with aqueous electrolytes
    • 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
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Inert Electrodes (AREA)

Abstract

1374125 Gas-diffusion electrode SOC LES PILES WONDER 22 Oct 1971 [23 Oct 1970] 49238/71 Heading H1B An electrode 1 comprises a centre gaspermeable, waterproof, non-conducting layer 2 of fluorocarbon resin, e.g. PTFE, and outer layers 3 of catalytically active material and from which electric current may be conducted, e.g. by grids 4. A surface of the layer 2 is exposed to the reactant gas thereby providing a gas inlet to the porous layer. As shown in Fig. 2 the exposed surface is at the top of the electrode above the electrolyte 5. The area of the exposed surface may be increased by terminating the upper ends of the layers 3 at a distance from the top of the layer 2 (Fig. 1, not shown). The layers 3 may comprise a mixture of PTFE and a metal, e.g. Raney silver, or active carbon. Methods of making the electrode are described. The electrolyte may be KOH and the anodes 8 of zinc. Fig. 5 shows a cross-section of the electrode 1, together with separator sheets 10 containing electrolyte and zinc sheets 9. A band of this laminate is manufactured and wound into a spiral and inserted in a cell casing (Figs. 6, 7, not shown). The casing may contain oxygen under pressure. A zinc-oxygen battery with flat electrodes is described with reference to Figs. 8, 9 (not shown). An oxygen-hydrogen fuel cell employing the electrodes 1 is described with reference to Figs. 10, 11 (not shown).
GB4923871A 1970-10-23 1971-10-22 Gas diffusion electrodes in methods for their manufacture and electrochemical electricity generators including such electrodes Expired GB1374125A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7038378A FR2108961B2 (en) 1970-10-23 1970-10-23

Publications (1)

Publication Number Publication Date
GB1374125A true GB1374125A (en) 1974-11-13

Family

ID=9063215

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4923871A Expired GB1374125A (en) 1970-10-23 1971-10-22 Gas diffusion electrodes in methods for their manufacture and electrochemical electricity generators including such electrodes

Country Status (3)

Country Link
DE (1) DE2152113A1 (en)
FR (1) FR2108961B2 (en)
GB (1) GB1374125A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5258241A (en) * 1988-12-22 1993-11-02 Siemens Aktiengesellschaft Rebalance cell for a Cr/Fe redox storage system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1601213A (en) * 1968-12-31 1970-08-10 Gaseous diffusion electrode for electroch- - emical generators or fuel batteries

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5258241A (en) * 1988-12-22 1993-11-02 Siemens Aktiengesellschaft Rebalance cell for a Cr/Fe redox storage system

Also Published As

Publication number Publication date
DE2152113A1 (en) 1972-04-27
FR2108961A2 (en) 1972-05-26
FR2108961B2 (en) 1976-07-23

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee