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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 LLC, Detroit, MI (United States)
OSTI Identifier:
875301
Patent Number(s):
RE37284
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 Joel, and Doll, Gary Lynn. Corrosion resistant PEM fuel cell. United States: N. p., 2002. Web.
Li, Yang, Meng, Wen-Jin, Swathirajan, Swathy, Harris, Stephen Joel, & Doll, Gary Lynn. Corrosion resistant PEM fuel cell. United States.
Li, Yang, Meng, Wen-Jin, Swathirajan, Swathy, Harris, Stephen Joel, and Doll, Gary Lynn. Tue . "Corrosion resistant PEM fuel cell". United States. https://www.osti.gov/servlets/purl/875301.
@article{osti_875301,
title = {Corrosion resistant PEM fuel cell},
author = {Li, Yang and Meng, Wen-Jin and Swathirajan, Swathy and Harris, Stephen Joel and Doll, Gary Lynn},
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 = {Tue Jan 01 00:00:00 EST 2002},
month = {Tue Jan 01 00:00:00 EST 2002}
}

Works referenced in this record:

Electrochemically measured porosity of magnetron sputtered TiN films deposited at various substrate orientations
journal, November 1986


A study of the corrosion behavior of TiN films
journal, February 1985


Epitaxial growth of TiN films on (100) silicon substrates by laser physical vapor deposition
journal, September 1992


A study of defects in sputtered TiN coatings by electrochemical polarization
journal, November 1986

  • Telama, A.; Mäntylä, T.; Kettunen, P.
  • Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 4, Issue 6
  • https://doi.org/10.1116/1.573659

Corrosion behaviour of TiN films obtained by plasma-assisted chemical vapour deposition
journal, April 1994


The microstructure of sputter‐deposited coatings
journal, November 1986


Corrosion studies with hard coating-substrate systems
journal, November 1992


Morphology of ion-plated titanium and aluminum films deposited at various substrate temperatures
journal, November 1978


Study of the behaviour in acidic solution of titanium and TiN coatings obtained by cathodic sputtering
journal, December 1987


Growth and properties of single crystal TiN films deposited by reactive magnetron sputtering
journal, March 1985

  • Johansson, B. O.; Sundgren, J. ‐E.; Greene, J. E.
  • Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 3, Issue 2
  • https://doi.org/10.1116/1.573255

Corrosion Testing of ZrN and TiN Films
journal, January 1991