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:
Jul. 15, 2014
Filed:
Jun. 11, 2012
Michael P. Balogh, Novi, MI (US);
Gayatri Vyas Dadheech, Bloomfield Hills, MI (US);
Nicholas P. Irish, Milford, MI (US);
Misle M. Tessema, Warren, MI (US);
Daniel P. Miller, Victor, NY (US);
Mahmoud H. Abd Elhamid, Troy, MI (US);
Michael P. Balogh, Novi, MI (US);
Gayatri Vyas Dadheech, Bloomfield Hills, MI (US);
Nicholas P. Irish, Milford, MI (US);
Misle M. Tessema, Warren, MI (US);
Daniel P. Miller, Victor, NY (US);
Mahmoud H. Abd Elhamid, Troy, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method of depositing a thin gold coating on bipolar plate substrates for use in fuel cells includes depositing a gold coating onto at least one surface of the bipolar plate substrate followed by annealing the gold coating at a temperature between about 200° C. to 500° C. The annealed gold coating has a reduced porosity in comparison with a coating which has not been annealed, and provides improved corrosion resistance to the underlying metal comprising the bipolar plate.