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PEM fuel cell monitoring system

United States Patent

5,763,113
June 9, 1998
View the Complete Patent at the US Patent & Trademark Office
Method and apparatus for monitoring the performance of H.sub.2 --O.sub.2 PEM fuel cells. Outputs from a cell/stack voltage monitor and a cathode exhaust gas H.sub.2 sensor are corrected for stack operating conditions, and then compared to predetermined levels of acceptability. If certain unacceptable conditions coexist, an operator is alerted and/or corrective measures are automatically undertaken.
Meltser; Mark Alexander (Pittsford, NY), Grot; Stephen Andreas (West Henrietta, NY)
General Motors Corporation (Detroit, MI)
08/ 702,895
August 26, 1996
The Government of the United States of America has rights in this invention pursuant to contract No. DE-AC02-90CH10435 awarded by the United States Department of Energy.