The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 2010
Filed:
Jun. 17, 2005
Michael K. Budinski, Pittsford, NY (US);
Gayatri Vyas, Rochester Hills, MI (US);
Augusto O. Kunrath Neto, Golden, CO (US);
John J. Moore, Evergreen, CO (US);
Michael K. Budinski, Pittsford, NY (US);
Gayatri Vyas, Rochester Hills, MI (US);
Augusto O. Kunrath Neto, Golden, CO (US);
John J. Moore, Evergreen, CO (US);
General Motors Corporation, Detroit, MI (US);
Abstract
Nitrided bipolar plates and a scheme for their fabrication are provided. The present invention also contemplates device incorporating bipolar plates according to the present invention. For example, in accordance with one embodiment of the present invention, an electrochemical conversion assembly is provided. The electrochemical conversion cells of the assembly are separated by respective bipolar plates comprising an alloy of Fe and Cr. A surface portion of the bipolar plates comprises a single phase nitrided structure. According to another embodiment of the present invention, a plasma nitriding process is utilized to create a single phase nitrided structure along a surface portion of respective ones of said bipolar plates.