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Inactive end cell assembly for fuel cells for improved electrolyte management and electrical contact

United States Patent

April 10, 2007
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
An assembly for storing electrolyte in a carbonate fuel cell is provided. The combination of a soft, compliant and resilient cathode current collector and an inactive anode part including a foam anode in each assembly mitigates electrical contact loss during operation of the fuel cell stack. In addition, an electrode reservoir in the positive end assembly and an electrode sink in the negative end assembly are provided, by which ribbed and flat cathode members inhibit electrolyte migration in the fuel cell stack.
Yuh; Chao-Yi (New Milford, CT), Farooque; Mohammad (Danbury, CT), Johnsen; Richard (New Fairfield, CT)
FuelCell Energy, Inc. (Danbury, CT)
10/ 407,544
April 3, 2003
STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT This invention was made with Government support under contract DE-FC21-95MC31184 awarded by the Department of Energy. The Government has certain rights in the invention.