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:
Jan. 08, 2013
Filed:
Apr. 23, 2009
Wen LI, El Segundo, CA (US);
Ping Liu, Irvine, CA (US);
Jennifer J. Zinck, Calabasas, CA (US);
Tina T. Salguero, Encino, CA (US);
Richard H. Blunk, Macomb Township, MI (US);
Wen Li, El Segundo, CA (US);
Ping Liu, Irvine, CA (US);
Jennifer J. Zinck, Calabasas, CA (US);
Tina T. Salguero, Encino, CA (US);
Richard H. Blunk, Macomb Township, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method of coating a surface of a fuel cell plate is disclosed herein, and involves forming a sol gel mixture by mixing a weak acid and a composition including at least two metal oxide precursors. One of the metal oxide precursors is configured to be hydrolyzed by the weak acid to form a mixed metal oxide framework with an other of the metal oxide precursors having at least one organic functional group that is not hydrolyzed by the weak acid. The mixture is applied to the surface, and is condensed by exposure to air at least one predetermined temperature and for a predetermined time. The sol gel mixture is immersed in water at a predetermined temperature and for a predetermined time to form a porous, hydrophilic, and conductive film on the surface.