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GB1158580A - New Electrodes, for Fuel Cells in Particular, and their Production Process - Google Patents

New Electrodes, for Fuel Cells in Particular, and their Production Process

Info

Publication number
GB1158580A
GB1158580A GB56036/66A GB5603666A GB1158580A GB 1158580 A GB1158580 A GB 1158580A GB 56036/66 A GB56036/66 A GB 56036/66A GB 5603666 A GB5603666 A GB 5603666A GB 1158580 A GB1158580 A GB 1158580A
Authority
GB
United Kingdom
Prior art keywords
ptfe
per cent
fabric
carbon
catalyst
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
GB56036/66A
Inventor
Pierre Hamard
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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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 IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Publication of GB1158580A publication Critical patent/GB1158580A/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
    • H01M4/96—Carbon-based electrodes
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inert Electrodes (AREA)

Abstract

1,158,580. Fuel cell electrode having a carbon fabric support. INSTITUT FRANCAIS DU PETROLE, DES CARBURANTS ET LUBRIFIANTS. 14 Dec., 1966 [16 Dec., 1965], No. 56036/66. Heading H1B. A fuel cell electrode comprises a thin support formed by a fabric of carbon threads covered on at least one surface by a fritted mixture of a polymer and a catalytic material. Preferably there are, per square metre of fabric surface, 0À1-300 gm. of catalyst (calculated as metal) and 0À05-100 gm. of polymer, corresponding to 0À1-60 wt. per cent and 0À05-20 wt. per cent respectively of the total electrode. Suitable fabrics are obtained by heating, out of air, at e.g. 600-900‹ C. fabrics of, e.g. flax, jute, cotton, regenerated cellulose, cellulose acetate, polyethylene terephthalate or polycaprolactam, giving fabrics having at least 5 meshes per cm. and a thickness below 2 mm., the fibrillae of the threads having a diameter less than 50 Á. Suitable catalysts include Co, Ni, Ru, Rh, Pd, Os, Ir, Pt, Cu, Ag and Au as metals, e.g. metal blacks or Raney metals, or oxides, carbonates, hydroxides, sulphides, selenides, tellurides, borides, molybdates, tungstates, vanadates and chromites. Suitable polymers include PTFE, polytrifluorochloroethylene, polyhexafluoropropylene, polyethylene, polypropylene, polytrifluoroethylene and fluoro-olefin copolymers, of softening points above 75‹ C. The catalyst and polymer may be applied from aqueous dispersions containing 0À1-30 wt. per cent and 0À1-60 wt. per cent of these, respectively. There may also be present dispersing or swelling agents, e.g. polyethylene oxide, polypropylene oxide, carboxymethylcellulose or polyvinyl alcohol, and carriers for the catalyst, e.g. carbon, graphite or non- catalytic Ag or Ni. In examples a graphite fabric is treated with aqueous dispersions of (1) platinum black, colloidal silica, and PTFE, (2) platinum-bearing carbon (5 wt. per cent Pt), polyvinyl alcohol and PTFE, (3) silver oxide, colloidal silica, polyvinyl alcohol and PTFE, and (4) 1-5 Á particle size graphite powder, colloidal silver, polvinyl alcohol and PTFE/ polyhexafluoropropylene copolymer, then heated at 300‹ C. in H 2 /N 2 (250‹ C. in N 2 in Example 4). The products are tested as hydrogen electrodes and as oxygen electrodes in semicells using H 2 SO 4 and KOH electrolytes.
GB56036/66A 1965-12-16 1966-12-14 New Electrodes, for Fuel Cells in Particular, and their Production Process Expired GB1158580A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR42602A FR1499879A (en) 1965-12-16 1965-12-16 New fuel cell electrodes and their manufacturing process

Publications (1)

Publication Number Publication Date
GB1158580A true GB1158580A (en) 1969-07-16

Family

ID=8595827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB56036/66A Expired GB1158580A (en) 1965-12-16 1966-12-14 New Electrodes, for Fuel Cells in Particular, and their Production Process

Country Status (4)

Country Link
BE (1) BE691129A (en)
DE (1) DE1571743A1 (en)
FR (1) FR1499879A (en)
GB (1) GB1158580A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2214974A1 (en) * 1973-01-24 1974-08-19 Alsthom
US3972735A (en) * 1974-02-15 1976-08-03 United Technologies Corporation Method for making electrodes for electrochemical cells
US4017663A (en) * 1974-02-15 1977-04-12 United Technologies Corporation Electrodes for electrochemical cells
EP0026995A1 (en) * 1979-09-27 1981-04-15 Prototech Company Thin carbon-cloth-based electrocatalytic gas diffusion electrodes, processes, and electrochemical cells comprising the same
EP0026994A1 (en) * 1979-09-27 1981-04-15 Prototech Company Carbon-cloth-based electrocatalytic gas diffusion electrodes, assembly and electrochemical cells comprising the same
EP0184638A3 (en) * 1984-10-17 1987-10-07 Hitachi, Ltd. Flexible water-repellent baked carbon plate, process for producing it and its use as an electrode in a fuel cell
US5865968A (en) * 1996-02-28 1999-02-02 Johnson Matthey Public Limited Company Gas diffusion electrodes
EP0928036A1 (en) * 1998-01-02 1999-07-07 De Nora S.P.A. Carbon-cloth-based electrocatalytic gas diffusion electrodes of electrochemical cells and method of manufacture

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2214974A1 (en) * 1973-01-24 1974-08-19 Alsthom
US3972735A (en) * 1974-02-15 1976-08-03 United Technologies Corporation Method for making electrodes for electrochemical cells
US4017663A (en) * 1974-02-15 1977-04-12 United Technologies Corporation Electrodes for electrochemical cells
EP0026995A1 (en) * 1979-09-27 1981-04-15 Prototech Company Thin carbon-cloth-based electrocatalytic gas diffusion electrodes, processes, and electrochemical cells comprising the same
EP0026994A1 (en) * 1979-09-27 1981-04-15 Prototech Company Carbon-cloth-based electrocatalytic gas diffusion electrodes, assembly and electrochemical cells comprising the same
EP0184638A3 (en) * 1984-10-17 1987-10-07 Hitachi, Ltd. Flexible water-repellent baked carbon plate, process for producing it and its use as an electrode in a fuel cell
US4894355A (en) * 1984-10-17 1990-01-16 Hitachi, Ltd. Flexible, water-repellent baked carbon plate, its production, fuel cell electrode, fuel cell electrode plate and its production and fuel cell
US5865968A (en) * 1996-02-28 1999-02-02 Johnson Matthey Public Limited Company Gas diffusion electrodes
US6010606A (en) * 1996-02-28 2000-01-04 Johnson Matthey Public Limited Company Gas diffusion electrodes
EP0928036A1 (en) * 1998-01-02 1999-07-07 De Nora S.P.A. Carbon-cloth-based electrocatalytic gas diffusion electrodes of electrochemical cells and method of manufacture

Also Published As

Publication number Publication date
FR1499879A (en) 1967-11-03
BE691129A (en) 1967-06-13
DE1571743A1 (en) 1971-01-14

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Legal Events

Date Code Title Description
416 Proceeding under section 16 patents act 1949
PS Patent sealed
PE Patent expired