Ultra-low loadings of Au for stainless steel bipolar plates

Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation

Reexamination Certificate

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C429S006000

Reexamination Certificate

active

07625654

ABSTRACT:
An electrically conductive fluid distribution element for a fuel cell which comprises an electrically conductive substrate, a flow field for distributing fluid along a surface of the substrate, and an electrically conductive coating on the surface which comprises a noble metal, desirably Ru, Rh, Pd, Ag, Ir, Pt, Os, and preferably Au.

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Patent Application entitled “Low Contact Resistance PEM Fuel Cell”, U.S. Appl. No. 09/997,190, filed Nov. 20, 2001.
Yang-Tse Cheng, et al., “Vapor Deposited Thin Gold Coatings for High Temperature Electrical Contacts,” 1996 IEEE, pp. 404-413.
R. Hornung, et al., “Bipolar Plate Materials Development Using Fe-Based Alloys for Solid Polymer Fuel Cells,” Journal of Power Sources 72 (1998) 20-21.

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