GB1158580A - New Electrodes, for Fuel Cells in Particular, and their Production Process - Google Patents
New Electrodes, for Fuel Cells in Particular, and their Production ProcessInfo
- 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
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
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.
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)
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 |
EP0184638A2 (en) * | 1984-10-17 | 1986-06-18 | Hitachi, Ltd. | Process of producing a flexbile fuel cell electrode from a carbon paper |
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 |
-
1965
- 1965-12-16 FR FR42602A patent/FR1499879A/en not_active Expired
-
1966
- 1966-12-13 DE DE19661571743 patent/DE1571743A1/en active Pending
- 1966-12-13 BE BE691129D patent/BE691129A/xx unknown
- 1966-12-14 GB GB56036/66A patent/GB1158580A/en not_active Expired
Cited By (11)
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 |
EP0184638A2 (en) * | 1984-10-17 | 1986-06-18 | Hitachi, Ltd. | Process of producing a flexbile fuel cell electrode from a carbon paper |
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 |
---|---|
BE691129A (en) | 1967-06-13 |
DE1571743A1 (en) | 1971-01-14 |
FR1499879A (en) | 1967-11-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
416 | Proceeding under section 16 patents act 1949 | ||
PS | Patent sealed | ||
PE | Patent expired |