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Title: Corrosion resistant PEM fuel cell

Abstract

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. 6 figs.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
General Motors Corp
OSTI Identifier:
504936
Patent Number(s):
5,624,769
Application Number:
PAN: 8-577,397
Assignee:
General Motors Corp., Detroit, MI (United States)
DOE Contract Number:  
AC02-90CH10435
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 29 Apr 1997
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; SOLID ELECTROLYTE FUEL CELLS; CORROSION PROTECTION; TITANIUM NITRIDES; PROTECTIVE COATINGS; STAINLESS STEELS; ALUMINIUM; TITANIUM

Citation Formats

Li, Y, Meng, W J, Swathirajan, S, Harris, S J, and Doll, G L. Corrosion resistant PEM fuel cell. United States: N. p., 1997. Web.
Li, Y, Meng, W J, Swathirajan, S, Harris, S J, & Doll, G L. Corrosion resistant PEM fuel cell. United States.
Li, Y, Meng, W J, Swathirajan, S, Harris, S J, and Doll, G L. Tue . "Corrosion resistant PEM fuel cell". United States.
@article{osti_504936,
title = {Corrosion resistant PEM fuel cell},
author = {Li, Y and Meng, W J and Swathirajan, S and Harris, S J and Doll, G L},
abstractNote = {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. 6 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {4}
}