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U.S. Department of Energy
Office of Scientific and Technical Information

Fuel cell stack with combination end-pressure plates

Patent ·
OSTI ID:5114224
A fuel cell stack is described comprising: (a) thin carbon fuel component plates stacked one atop another to provide a reaction portion of the stack; (b) a steel pressure plate disposed directly atop an uppermost one of the carbon plates, the steel pressure plate being laterally coextensive with the carbon plates at ambient temperatures; (c) at least one reactant manifold mounted on a side of the stack, the manifold having a peripheral sealing flange which faces surfaces of the carbon plates and a corresponding side surface of the pressure plate; (d) a polymeric sealing gasket interposed between the manifold sealing flange and adjacent side surfaces of the carbon plates and the pressure plate to provide a seal between the manifold interior and ambient surroundings; and (e) a fist adhesive layer sandwiched between the gasket and adjacent side surfaces of the carbon and pressure plates to adhere the gasket to the adjacent side surfaces.
Assignee:
International Fuel Cells Corp., South Windsor, CT
Patent Number(s):
US 4728585
OSTI ID:
5114224
Country of Publication:
United States
Language:
English