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Optimized cell configurations for stable LSCF-based solid oxide fuel cells

United States Patent

May 22, 2012
View the Complete Patent at the US Patent & Trademark Office
Lanthanum strontium cobalt iron oxides (La(1-x)SrxCoyFe1-yO3-f; (LSCF) have excellent power density (>500 mW/cm2 at C.). When covered with a metallization layer, LSCF cathodes have demonstrated increased durability and stability. Other modifications, such as the thickening of the cathode, the preparation of the device by utilizing a firing temperature in a designated range, and the use of a pore former paste having designated characteristics and combinations of these features provide a device with enhanced capabilities.
Kim; Jin Yong (Richland, WA), Sprenkle; Vincent L. (Richland, WA), Canfield; Nathan L. (Richland, WA), Meinhardt; Kerry D. (Kennewick, WA), Chick; Lawrence A. (West Richland, WA)
Battelle Memorial Institute (Richland, WA)
12/ 241,277
September 30, 2008
STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY-SPONSORED RESEARCH AND DEVELOPMENT This invention was made with Government support under Contract DE-FC2602NT41246 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.