Composite electrode substrate for a fuel cell and process...

Details Composite electrode substrate for a fuel cell and process... Composite electrode substrate for a fuel cell and process...

H - Electricity

01

M

319/19

H01M 4/96 (2006.01)

Patent

CA 1273991

TITLE OF THE INVENTION: COMPOSITE ELECTRODE SUBSTRATE FOR A FUEL CELL AND PROCESS FOR PRODUCING THE SAME ABSTRACT OF THE DISCLOSURE: Disclosed herein are a composite electrode substrate for a fuel cell in which a porous and carbonaceous electrode provided with flow channels for a reactant gas is joined to both surfaces of the separa- tor via a flexible graphite sheet, the separator has been extended beyond the electrode and to the thus extended part of the separator, (1) a peripheral sealer on the side of the electrode parallel to the flow channels therein, which comprises a gas-impermeable and compact carbonaceous material or (2) a manifold which comprises a gas-impermeable and compact carbonaceous material and is provided with a flow passage for supplying a reactant gas is joined via a layer of a fluorocarbon resin, and a process for producing the composite electrode substrate.

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