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:
Sep. 08, 2015
Filed:
Jul. 20, 2009
Applicants:
Richard H. Blunk, Macomb Township, MI (US);
Ping Liu, Irvine, CA (US);
Sky Leigh Van Atta, Los Angeles, CA (US);
Kevin W. Kirby, Calabasas Hills, CA (US);
Inventors:
Richard H. Blunk, Macomb Township, MI (US);
Ping Liu, Irvine, CA (US);
Sky Leigh Van Atta, Los Angeles, CA (US);
Kevin W. Kirby, Calabasas Hills, CA (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/00 (2006.01); H01M 4/82 (2006.01); C07C 303/02 (2006.01); C25D 5/34 (2006.01); B05D 5/12 (2006.01); H01M 8/02 (2006.01);
U.S. Cl.
CPC ...
H01M 8/0228 (2013.01); H01M 8/0206 (2013.01); H01M 8/0213 (2013.01); H01M 8/0221 (2013.01); Y02E 60/50 (2013.01); Y10T 29/49115 (2015.01);
Abstract
A fuel cell comprises a bipolar plate having a cationic polymer layer and a conductive and hydrophilic surface layer disposed on at least a portion of its exterior area. The surface layer comprises a conductive carbon material having a hydrophilic organic group ionically attached to its surface. A process of producing a bipolar plate and a fuel cell is also disclosed.