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:
Aug. 10, 2004
Filed:
Apr. 25, 2002
Applicant:
Inventors:
Pinkhas A Rapaport, Penfield, NY (US);
John P. Healy, Pittsford, NY (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/10 ; H01M 8/24 ; H01M 8/02 ;
U.S. Cl.
CPC ...
H01M 8/10 ; H01M 8/24 ; H01M 8/02 ;
Abstract
Fuel cell stack having a plurality of liquid-cooled, bipolar plates separating one cell from the next. Coolant inlet and outlet manifolds are defined, in part, by surfaces of the bipolar plates, and respectively supply coolant to, and remove coolant from, the bipolar plates. The surfaces of the bipolar plates that define the coolant manifolds and confront the coolant in the manifolds are coated with a non-conductive coating to reduce shunt current flow through the coolant.