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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.

Inventors:
 [1];  [2];  [3];  [4];  [5]
  1. Troy, MI
  2. Okemos, MI
  3. West Bloomfield, MI
  4. Bloomfield, MI
  5. Orion Township, Oakland County, MI
Issue Date:
Research Org.:
General Motors Corp
OSTI Identifier:
870920
Patent Number(s):
5624769
Assignee:
General Motors Corporation (Detroit, MI)
DOE Contract Number:  
AC02-90CH10435
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
corrosion; resistant; pem; fuel; cell; contemplates; electrical; contact; elements; including; bipolar; plates; septums; comprising; titanium; nitride; coated; light; weight; metal; core; passivating; protective; layer; intermediate; forms; barrier; oxidation; exposed; operating; environment; stainless; steels; rich; particularly; effective; interlayers; operating environment; nitride coated; fuel cell; bipolar plates; protective interlayer; protective layer; light weight; stainless steels; corrosion resistant; titanium nitride; metal layer; electrical contact; stainless steel; bipolar plate; pem fuel; particularly effective; protective metal; layer forms; resistant pem; coated light; contact elements; weight metal; including bipolar; /429/

Citation Formats

Li, Yang, Meng, Wen-Jin, Swathirajan, Swathy, Harris, Stephen J, and Doll, Gary L. Corrosion resistant PEM fuel cell. United States: N. p., 1997. Web.
Li, Yang, Meng, Wen-Jin, Swathirajan, Swathy, Harris, Stephen J, & Doll, Gary L. Corrosion resistant PEM fuel cell. United States.
Li, Yang, Meng, Wen-Jin, Swathirajan, Swathy, Harris, Stephen J, and Doll, Gary L. Wed . "Corrosion resistant PEM fuel cell". United States. https://www.osti.gov/servlets/purl/870920.
@article{osti_870920,
title = {Corrosion resistant PEM fuel cell},
author = {Li, Yang and Meng, Wen-Jin and Swathirajan, Swathy and Harris, Stephen J and Doll, Gary 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {1}
}

Patent:

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