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:
Apr. 12, 2005
Filed:
Aug. 13, 2002
Jinping Zhang, Grand Blanc, MI (US);
Rick D. Kerr, Fenton, MI (US);
Charles D. Oakley, Davison, MI (US);
David A. Thompson, Grand Blanc, MI (US);
Jinping Zhang, Grand Blanc, MI (US);
Rick D. Kerr, Fenton, MI (US);
Charles D. Oakley, Davison, MI (US);
David A. Thompson, Grand Blanc, MI (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A bipolar plate for use in a fuel cell assembly having channels for conveying oxygen and fuel along the cathode and anode surfaces of adjacent fuel cell units. The channels are separated by lands for making electrical and mechanical contact with the respective cathode and anode surfaces and preferably are so configured as to provide the minimum area required for satisfactory electrical contact and mechanical support. The lands and channels preferably are formed as peaks and valleys or as raised or recessed dimples for making electrical/mechanical contact with the cathode and anode surfaces and are coated in those contact areas with corrosion-resistant metal such as gold, platinum, ruthenium, or combinations thereof.