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:
Jul. 05, 2016
Filed:
Aug. 27, 2013
GM Global Technology Operations Llc, Detroit, MI (US);
Mahmoud H. Abd Elhamid, Troy, MI (US);
Richard H. Blunk, Macomb Township, MI (US);
Daniel J. Lisi, Eastpointe, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A bipolar plate for a fuel cell is provided including a plate having an active surface with a plurality of flow channels formed therein. The plurality of flow channels have a hydrophilic coating deposited thereon and define a plurality of lands disposed therebetween. The plurality of lands is substantially free of the hydrophilic coating. Furthermore, a thickness of the hydrophilic coating is substantially constant along a length of the active surface and an edge of the hydrophilic coating adjacent the plurality of lands is substantially continuous. A method for preparing the bipolar plate is also provided.