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Fluid flow plate for decreased density of fuel cell assembly

United States Patent

November 9, 1999
View the Complete Patent at the US Patent & Trademark Office
A fluid flow plate includes first and second outward faces. Each of the outward faces has a flow channel thereon for carrying respective fluid. At least one of the fluids serves as reactant fluid for a fuel cell of a fuel cell assembly. One or more pockets are formed between the first and second outward faces for decreasing density of the fluid flow plate. A given flow channel can include one or more end sections and an intermediate section. An interposed member can be positioned between the outward faces at an interface between an intermediate section, of one of the outward faces, and an end section, of that outward face. The interposed member can serve to isolate the reactant fluid from the opposing outward face. The intermediate section(s) of flow channel(s) on an outward face are preferably formed as a folded expanse.
Vitale; Nicholas G. (Albany, NY)
Plug Power, L.L.C. (Latham, NY)
08/ 919,648
August 28, 1997
STATEMENT OF GOVERNMENT RIGHTS The Government of the United States of America has rights in this invention pursuant to Contract No. DE-AC02-94CE50389 awarded by the U.S. Department of Energy.