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CLAD METAL BIPOLAR PLATES

United States Patent Application

20070264540
A1
View the Complete Application at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
A clad metal bipolar plate and method for manufacture that can be cost efficiently produced and which provides excellent functional qualities. In one preferred embodiment of the invention the transition metal cladding is selected from a group of materials that form a self passivating layer when in use in a typical PEMFC operating environment. In another embodiment of the invention the transition metal cladding is selected from different types of transition metals and is treated with boron to form a transition metal boride that acts as a passivating layer when in use in a typical PEMFC operating environment. The use of transitional metal claddings over a metal core allows for various functional combinations and assists with cost effective manufacture of PEMFCs.
Weil, Kenneth Scott (Richland, WA), Xia, Guanguang (Pasco, WA), Kim, Jin Yong (Richland, WA)
Battelle Memorial Institute
11/ 740,137
April 25, 2007
STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY-SPONSORED RESEARCH AND DEVELOPMENT [0002] This invention was made with Government support under Contract DE-AC0576RL01830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.