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Solid oxide fuel cell with transitioned cross-section for improved anode gas management at the open end

United States Patent

January 17, 2012
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
A solid oxide fuel cell (400) is made having a tubular, elongated, hollow, active section (445) which has a cross-section containing an air electrode (452) a fuel electrode (454) and solid oxide electrolyte (456) between them, where the fuel cell transitions into at least one inactive section (460) with a flattened parallel sided cross-section (462, 468) each cross-section having channels (472, 474, 476) in them which smoothly communicate with each other at an interface section (458).
Zafred; Paolo R. (Murrysville, PA), Draper; Robert (Pittsburgh, PA)
Siemens Energy, Inc. (Orlando, FL)
12/ 169,261
July 8, 2008
GOVERNMENT CONTRACT The Government of the United States of America has rights in this invention pursuant to Contract No. DE-FC26-05NT42613 awarded by the U.S. Department of Energy.