Title:
CATHODE REACTANT FLOW FIELD COMPONENT FOR A FUEL CCATHODE REACTANT FLOW FIELD COMPONENT FOR A FUEL CELL STACK ELL STACK
Document Type and Number:
WIPO Patent Application WO1996012309
Kind Code:
A3
Abstract:
The reactant flow field on the cathode side of a fuel cell assembly is formed from a plate made from carbon particles that are bonded together by a fluorocarbon polymer binder. The cathode reactant flow field is non-porous, and is hydrophobic due to the presence of the poller binder. The carbon particles are preferably carbon flakes which pack together very tightly, and require only a minor amount of the polymer binder to form a solid plate. The plate will provide cathode reactant flow channels, will conduct electrons and heat and will minimize acid absorption in a fuel cell stack due to its hydrophobic nature.
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Inventors:
BREAULT RICHARD D
MARTIN RONALD G
ROCHE ROBERT P
KLINE GREGORY R
MARTIN RONALD G
ROCHE ROBERT P
KLINE GREGORY R
Application Number:
PCT/US1995/012006
Publication Date:
October 24, 1996
Filing Date:
September 21, 1995
Export Citation:
Assignee:
INT FUEL CELLS CORP (US)
International Classes:
H01M8/02; (IPC1-7): H01M/
Foreign References:
| EP0683536A1 | 1995-11-22 | |||
| GB1352107A | 1974-05-08 | |||
| US4214969A | 1980-07-29 | |||
| US5328542A | 1994-07-12 | |||
| US5079104A | 1992-01-07 | |||
| GB2177387A | 1987-01-21 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 006, no. 200 (E - 135) 9 October 1982 (1982-10-09)
CHEMICAL ABSTRACTS, vol. 114, no. 12, 25 March 1991, Columbus, Ohio, US; abstract no. 105720k, KAMATA KOJI ET AL: "Manufacture of thin carbon plates, especially for phosphoric acid fuel cells" XP000283880
PATENT ABSTRACTS OF JAPAN vol. 011, no. 174 (E - 513) 4 June 1987 (1987-06-04)
See also references of EP 0786155A2
CHEMICAL ABSTRACTS, vol. 114, no. 12, 25 March 1991, Columbus, Ohio, US; abstract no. 105720k, KAMATA KOJI ET AL: "Manufacture of thin carbon plates, especially for phosphoric acid fuel cells" XP000283880
PATENT ABSTRACTS OF JAPAN vol. 011, no. 174 (E - 513) 4 June 1987 (1987-06-04)
See also references of EP 0786155A2
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