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. 04, 2015
Filed:
Mar. 28, 2012
Pinkhas A. Rapaport, Penfield, NY (US);
Aaron J. Blowers, Lima, NY (US);
James Leistra, Penfield, NY (US);
Balasubramanian Lakshmanan, Pittsford, NY (US);
Pinkhas A. Rapaport, Penfield, NY (US);
Aaron J. Blowers, Lima, NY (US);
James Leistra, Penfield, NY (US);
Balasubramanian Lakshmanan, Pittsford, NY (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A system and method for breaking-in and humidifying membrane-electrode-assemblies (MEAs) in a fuel cell stack. The method includes performing voltage cycling and humidification of the MEAs in the stack, including one or more temperature steps wherein current density of the stack is cycled within a predetermined range for each of the one or more temperature steps. The method also includes maintaining a fuel cell stack voltage within a predetermined range, and maintaining anode and cathode reactant flows at an approximate set-point during the current density cycling of the one or more temperature steps to break-in and humidify the MEAs in the stack so that the stack is able to operate at a predetermined threshold for a fuel cell stack voltage output capability.