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Title: Corrosion resistant PEM fuel cell

The present invention contemplates a PEM fuel cell having electrical contact elements (including bipolar plates/septums) comprising a titanium nitride coated light weight metal (e.g., Al or Ti) core, having a passivating, protective metal layer intermediate the core and the titanium nitride. The protective layer forms a barrier to further oxidation/corrosion when exposed to the fuel cell's operating environment. Stainless steels rich in CR, Ni, and Mo are particularly effective protective interlayers.
Inventors:
; ; ; ;
Issue Date:
OSTI Identifier:
1176699
Assignee:
General Motors Corporation (Detroit, MI) OSTI
Patent Number(s):
RE37284
Application Number:
09/504,349
Contract Number:
AC02-90CH10435
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 30 DIRECT ENERGY CONVERSION