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:
May. 05, 2015
Filed:
Mar. 17, 2006
Applicants:
Chunxin Ji, Pennfield, NY (US);
Mark Mathias, Pittsford, NY (US);
Margaret Fleming, Wolfeboro, NH (US);
Inventors:
Chunxin Ji, Pennfield, NY (US);
Gerald J. Fleming, Wolfeboro, NH (US);
Mark Mathias, Pittsford, NY (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/00 (2006.01); H01M 8/10 (2006.01); H01M 8/02 (2006.01);
U.S. Cl.
CPC ...
H01M 8/0243 (2013.01); H01M 8/0234 (2013.01); H01M 8/0239 (2013.01); H01M 8/1002 (2013.01); Y02E 60/521 (2013.01);
Abstract
Diffusion media for fuel cell is made by preparing an aqueous dispersion comprising a powder resin, a binder material, and a fiber material comprising carbon fibers, of these; forming a layer of the dispersion on a support; removing water from the layer to form a fiber layer; molding the fiber layer; and carbonizing or graphitizing the molded layer.