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:
Mar. 13, 2018
Filed:
Aug. 28, 2009
Robert M. Darling, South Windsor, CT (US);
Paravastu Badrinarayanan, Manchester, CT (US);
Carl A. Reiser, Stonington, CT (US);
Robert M. Darling, South Windsor, CT (US);
Paravastu Badrinarayanan, Manchester, CT (US);
Carl A. Reiser, Stonington, CT (US);
Audi AG, Ingolstadt, DE;
Abstract
A method of operating a fuel cell power plant () including a stack () of fuel cells having an anode catalyst layer and a cathode electrode () including a catalyst layer disposed on catalyst support material is characterized by, during normal operation of said power plant, adjusting the voltage of the stack to be substantially equal to or less than a predetermined maximum voltage for the temperature of the stack. Further, said step of adjusting comprises adjusting the stack voltage to the lesser of: a) a predetermined voltage above which corrosion of catalyst support material is significant and below which corrosion of catalyst support material is insignificant at the temperature of the stack; and b) a predetermined voltage above which dissolution of catalyst is significant and below which dissolution of the catalyst is insignificant at the temperature of the stack.