Corrosion resistant PEM fuel cell

Li, Yang; Meng, Wen-Jin; Swathirajan, Swathy; Harris, Stephen Joel; Doll, Gary Lynn

Title: Corrosion resistant PEM fuel cell

Patent · Tue Jul 17 00:00:00 EDT 2001

OSTI ID:1176699

Li, Yang; Meng, Wen-Jin; Swathirajan, Swathy; Harris, Stephen Joel; Doll, Gary Lynn

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.

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Research Organization:: General Motors Corporation, Detroit, MI (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC02-90CH10435

Assignee:: General Motors Corporation (Detroit, MI)

Patent Number(s):: RE37284

Application Number:: 09/504,349

OSTI ID:: 1176699

Resource Relation:: Patent File Date: 2000 Feb 14

Country of Publication:: United States

Language:: English

References (12)

Electrochemically measured porosity of magnetron sputtered TiN films deposited at various substrate orientations Freller, H.; Lorenz, H. P. Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 4, Issue 6 https://doi.org/10.1116/1.573707	journal	November 1986
The dependence of hardness and corrosion protection power of ion- beam-assisted deposition TiN coatings on the ion beam impact angle Hübler, R.; Alberts, L.; Wolf, G. K. Surface and Coatings Technology, Vol. 60, Issue 1-3 https://doi.org/10.1016/0257-8972(93)90151-D	journal	October 1993
A study of the corrosion behavior of TiN films Erdemir, A.; Carter, W. B.; Hochman, R. F. Materials Science and Engineering, Vol. 69, Issue 1 https://doi.org/10.1016/0025-5416(85)90377-5	journal	February 1985
Epitaxial growth of TiN films on (100) silicon substrates by laser physical vapor deposition Narayan, J.; Tiwari, P.; Chen, X. Applied Physics Letters, Vol. 61, Issue 11 https://doi.org/10.1063/1.107568	journal	September 1992
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
Corrosion behaviour of TiN films obtained by plasma-assisted chemical vapour deposition In, C. B.; Kim, S. P.; Chun, J. S. Journal of Materials Science, Vol. 29, Issue 7 https://doi.org/10.1007/BF00351301	journal	April 1994
The microstructure of sputter‐deposited coatings Thornton, John A. Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 4, Issue 6 https://doi.org/10.1116/1.573628	journal	November 1986
Corrosion studies with hard coating-substrate systems Jehn, H. Surface and Coatings Technology, Vol. 54-55 https://doi.org/10.1016/0257-8972(92)90148-4	journal	November 1992
Morphology of ion-plated titanium and aluminum films deposited at various substrate temperatures Lardon, M.; Buhl, R.; Signer, H. Thin Solid Films, Vol. 54, Issue 3 https://doi.org/10.1016/0040-6090(78)90388-7	journal	November 1978
Study of the behaviour in acidic solution of titanium and TiN coatings obtained by cathodic sputtering Massiani, Y.; Crousier, J.; Fedrizzi, L. Surface and Coatings Technology, Vol. 33 https://doi.org/10.1016/0257-8972(87)90197-6	journal	December 1987
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
Corrosion Testing of ZrN and TiN Films Tavi, Markku; Forsén, Olof; Aromaa, Jari Materials Science Forum, Vol. 44-45 https://doi.org/10.4028/www.scientific.net/MSF.44-45.15	journal	January 1991

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