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Fuel cell electrolyte membrane with acidic polymer

United States Patent

April 14, 2009
View the Complete Patent at the US Patent & Trademark Office
An electrolyte membrane is formed by an acidic polymer and a low-volatility acid that is fluorinated, substantially free of basic groups, and is either oligomeric or non-polymeric.
Hamrock; Steven J. (Stillwater, MN), Larson; James M. (Saint Paul, MN), Pham; Phat T. (Little Canada, MN), Frey; Matthew H. (Cottage Grove, MN), Haugen; Gregory M. (Edina, MN), Lamanna; William M. (Stillwater, MN)
3M Innovative Properties Company (Saint Paul, MN)
11/ 230,090
September 19, 2005
This invention was made with U.S. Government support under Cooperative Agreement DE-FC36-02AL67621 awarded by the Department of Energy. The U.S. Government has certain rights in this invention.