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:
Dec. 28, 2010
Filed:
Jun. 28, 2004
Applicants:
Mohammed E Sennoun, Pittsford, NY (US);
Robert C Reid, Livonia, NY (US);
Inventors:
Mohammed E Sennoun, Pittsford, NY (US);
Robert C Reid, Livonia, NY (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/04 (2006.01); H01M 8/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a fuel cell stack and a method of operating the same that allows for removal of liquid water and minimizes the impact of liquid water on the performance of the fuel cells. By selectively blocking the cathode reactant flow from exiting the fuel cell stack improved water management can be achieved. The selective blocking of the cathode reactant from exiting the fuel cell stack also helps to increase the partial pressure of the oxygen toward the exit side of the fuel cell stack which improves the chemical kinetics and the voltage produced by the fuel cells.