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Open end protection for solid oxide fuel cells

United States Patent

April 24, 2001
View the Complete Patent at the US Patent & Trademark Office
A solid oxide fuel cell (40) having a closed end (44) and an open end (42) operates in a fuel cell generator (10) where the fuel cell open end (42) of each fuel cell contains a sleeve (60, 64) fitted over the open end (42), where the sleeve (60, 64) extends beyond the open end (42) of the fuel cell (40) to prevent degradation of the interior air electrode of the fuel cell by fuel gas during operation of the generator (10).
Zafred; Paolo R. (Murrysville, PA), Dederer; Jeffrey T. (Valencia, PA), Tomlins; Gregory W. (Pittsburgh, PA), Toms; James M. (Irwin, PA), Folser; George R. (Lower Burrell, PA), Schmidt; Douglas S. (Pittsburgh, PA), Singh; Prabhakar (Export, PA), Hager; Charles A. (Zelienople, PA)
Siemens Westinghouse Power Corporation (Orlando, FL)
09/ 393,560
September 10, 1999
GOVERNMENT CONTRACT The Government of the United States of America has rights in this invention, pursuant to Contract No. DE-FC26-99FT-34139 with the United States Department of Energy.