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.

Date of Patent:
Aug. 26, 2008

Filed:

Feb. 03, 2004
Applicants:

Richard H. Blunk, Macomb Township, Macomb County, MI (US);

Mahmoud H. Abd Elhamid, Warren, MI (US);

Daniel John Lisi, Eastpointe, MI (US);

Youssef Morcos Mikhail, Sterling Heights, MI (US);

Inventors:

Richard H. Blunk, Macomb Township, Macomb County, MI (US);

Mahmoud H. Abd Elhamid, Warren, MI (US);

Daniel John Lisi, Eastpointe, MI (US);

Youssef Morcos Mikhail, Sterling Heights, MI (US);

Assignee:

General Motors Corporation, Detroit, MI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A PEM fuel cell having a current collector comprising a polymer composite and a diffusion media engaging said polymer composite. The polymer composite has a hyperconductive surface layer engaging the diffusion media to reduce the contact resistance therebetween. The hyperconductive surface layer is formed by depositing or smearing an electrically-conductive material on the surface of the polymer composite.


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