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Protective coatings for fuel cell interconnect

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A protective coating for fuel cell interconnects particularly for metal interconnects used in stacked solid oxide fuel cells, for preventing corrosion problems at high temperature. The protective coating is composed of precious metals such as platinum, palladium, and silver, which are highly conductive and are stable in both oxidizing and reducing atmosphere. While silver is the most economical, platinum and palladium have a high performance. Silver is cheap enough that its use in form of their film does not drive up the fuel cell costs significantly, and can be readily deposited on the metal interconnect using electrochemical techniques, such as electroplating.
Pham, Ai Quoc (San Jose, CA), Chung, Brandon W. (Dublin, CA), Glass, Robert S. (Livermore, CA)
The Regents of the University of California
09/ 967,575
September 28, 2001
[0002] The United States Government has rights in this invention pursuant to Contract No. W-7405-ENG-48 between the United States Department of Energy and the University of California for the operation of Lawrence Livermore National Laboratory.