GB1160588A - A Method for Manufacturing Gas Diffusion Electrodes for Cells - Google Patents

A Method for Manufacturing Gas Diffusion Electrodes for Cells

Info

Publication number
GB1160588A
GB1160588A GB10753/67A GB1075367A GB1160588A GB 1160588 A GB1160588 A GB 1160588A GB 10753/67 A GB10753/67 A GB 10753/67A GB 1075367 A GB1075367 A GB 1075367A GB 1160588 A GB1160588 A GB 1160588A
Authority
GB
United Kingdom
Prior art keywords
electrode
per cent
fluorocarbon resin
powder
nickel
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
GB10753/67A
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1160588A publication Critical patent/GB1160588A/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
    • H01M4/88—Processes of manufacture
    • H01M4/8803—Supports for the deposition of the catalytic active composition
    • H01M4/8807—Gas diffusion layers
    • 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
    • H01M4/8605—Porous electrodes
    • H01M4/8621—Porous electrodes containing only metallic or ceramic material, e.g. made by sintering or sputtering
    • 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
    • H01M4/88—Processes of manufacture
    • H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
    • H01M4/8892—Impregnation or coating of the catalyst layer, e.g. by an ionomer
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Inert Electrodes (AREA)

Abstract

1,160,588. Gas-diffusion electrodes dusted with fluorocarbon resin. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 7 March, 1967 [15 March, 1966], No.10753/67. Heading H1B. A gas-diffusion electrode is prepared by applying a fluorocarbon resin in powder form to the gas face of a porous sintered plaque containing a major proportion of nickel powder. The powder may be bonded to the plaque by heating the electrode to a temperature below the melting point of the resin. The plaque may be made from grade A carbonyl nickel with grade B carbonyl nickel if necessary, to give a porosity exceeding 70%. Possible additives are: up to 13 wt. per cent activated charcoal, up to 4 wt. per cent acetylene black, 3-7 wt. per cent Al 2 O 3 , and 5-7 wt. per cent of a pore-forming agent, e.g. urea or naphthalene. The electrode may be used alone or with known catalysts, and may be given a conventional water-repelling treatment before application of the fluorocarbon polymer powder, e.g. using a polyethylene, polystyrene or fluorocarbon resin emulsion. Suitable powdered resins include PTFE. polychlorotrifluoroethylene and tetrafluoroethylene / hexafluoropropylene copolymer. In examples an electrode is prepared from carbonyl nickel sintered with acetylene black or activated charcoal on to a nickel mesh, then treated with AgNO 3 and alkaline formalin to give silver, impregnated with a fluorocarbon resin emulsion, heated to 340‹ C., then dusted with tetrafluoroethylene/ hexafluoropropylene copolymer; this is used as oxygen or air electrode in H 2 /O 2 , methanol/air or hydrazine/air fuel cells. A similar electrode having alumina in place of the carbon, and a Pt catalyst, is used as a hydrogen electrode. In the hydrazine/air cell a polyvinyl alcoholimpregnated PVC separator is inserted between the electrodes.
GB10753/67A 1966-03-15 1967-03-07 A Method for Manufacturing Gas Diffusion Electrodes for Cells Expired GB1160588A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1661266 1966-03-15

Publications (1)

Publication Number Publication Date
GB1160588A true GB1160588A (en) 1969-08-06

Family

ID=11921128

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10753/67A Expired GB1160588A (en) 1966-03-15 1967-03-07 A Method for Manufacturing Gas Diffusion Electrodes for Cells

Country Status (2)

Country Link
DE (1) DE1671842C3 (en)
GB (1) GB1160588A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512352A1 (en) * 1981-09-07 1983-03-11 Inst Francais Du Petrole PROCESS FOR PRODUCING A POROUS WATER-REPELLENT MEMBRANE AND MEMBRANES OBTAINED THEREBY
EP0098144A2 (en) * 1982-06-29 1984-01-11 Union Carbide Corporation Metal current carrier for electrochemical cell electrodes
CN110634622A (en) * 2019-11-05 2019-12-31 高俊葵 Preparation method of silver-containing nanowire high-weather-resistance transparent conductive film

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512352A1 (en) * 1981-09-07 1983-03-11 Inst Francais Du Petrole PROCESS FOR PRODUCING A POROUS WATER-REPELLENT MEMBRANE AND MEMBRANES OBTAINED THEREBY
EP0074302A1 (en) * 1981-09-07 1983-03-16 Institut Français du Pétrole Process for the production of a hydrophorous porous membrane
EP0098144A2 (en) * 1982-06-29 1984-01-11 Union Carbide Corporation Metal current carrier for electrochemical cell electrodes
EP0098144A3 (en) * 1982-06-29 1986-01-29 Union Carbide Corporation Metal current carrier for electrochemical cell electrodes
CN110634622A (en) * 2019-11-05 2019-12-31 高俊葵 Preparation method of silver-containing nanowire high-weather-resistance transparent conductive film

Also Published As

Publication number Publication date
DE1671842A1 (en) 1971-12-23
DE1671842B2 (en) 1974-12-05
DE1671842C3 (en) 1975-07-17

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Legal Events

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