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Corrosion resistant PEM fuel cell

Patent ·
OSTI ID:875301
 [1];  [2];  [3];  [4];  [5]
  1. Troy, MI
  2. Okemos, MI
  3. West Bloomfield, MI
  4. Bloomfield, MI
  5. Orion Township, Oakland County, MI
+ Show Author Affiliations

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.

Research Organization:
GENERAL MOTORS CORP
DOE Contract Number:
AC02-90CH10435
Assignee:
General Motors Corporation (Detroit, MI)
Patent Number(s):
US RE37284
OSTI ID:
875301
Country of Publication:
United States
Language:
English

References (12)

Growth and properties of single crystal TiN films deposited by reactive magnetron sputtering
  • 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
journal March 1985
The dependence of hardness and corrosion protection power of ion- beam-assisted deposition TiN coatings on the ion beam impact angle journal October 1993
Study of the behaviour in acidic solution of titanium and TiN coatings obtained by cathodic sputtering journal December 1987
A study of defects in sputtered TiN coatings by electrochemical polarization
  • 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
journal November 1986
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
The microstructure of sputter‐deposited coatings journal November 1986
Morphology of ion-plated titanium and aluminum films deposited at various substrate temperatures journal November 1978
Corrosion behaviour of TiN films obtained by plasma-assisted chemical vapour deposition journal April 1994
Corrosion studies with hard coating-substrate systems journal November 1992
Corrosion Testing of ZrN and TiN Films journal January 1991

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Related Subjects

/429/
barrier
bipolar
bipolar plate
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coated
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electrical
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fuel
fuel cell
including
including bipolar
interlayers
intermediate
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light
light weight
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nitride
nitride coated
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particularly
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passivating
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protective
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resistant
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rich
septums
stainless
stainless steel
stainless steels
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titanium
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weight
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