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:
Nov. 08, 2011
Filed:
Nov. 07, 2007
Thomas A. Trabold, Pittsford, NY (US);
Steven R. Falta, Honeoye Falls, NY (US);
Pinkhas A. Rapaport, Fairport, NY (US);
Reena L. Datta, Rochester, NY (US);
Gayatri Vyas Dadheech, Rochester Hills, MI (US);
Thomas A. Trabold, Pittsford, NY (US);
Steven R. Falta, Honeoye Falls, NY (US);
Pinkhas A. Rapaport, Fairport, NY (US);
Reena L. Datta, Rochester, NY (US);
Gayatri Vyas Dadheech, Rochester Hills, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A flow field plate or bipolar plate for a fuel cell that includes a hydrophilic coating formed on flow field channels extending through a tunnel region between a cell active area and the inlet and outlet manifolds. The flow field plates are an assembly of a cathode side unipolar plate and an anode side unipolar plate. The hydrophilic coating is deposited on the unipolar plates prior to the unipolar plates being assembled into the flow field plate so that line of site deposition processes can be used to coat the flow field channels in the tunnel region. The unipolar plates can be any suitable fuel cell unipolar plates, such as stamped unipolar plates or composite unipolar plates.