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. 20, 2004
Filed:
Apr. 06, 2001
Qinbai Fan, Chicago, IL (US);
Jeremy R. Chervinko, Elk Grove, IL (US);
Michael Onischak, St. Charles, IL (US);
Leonard G. Marianowski, Mount Prospect, IL (US);
Gas Technology Institute, Des Plaines, IL (US);
Abstract
A polymer electrolyte membrane fuel cell stack having a plurality of substantially planar fuel cell units, each of which comprises an anode electrode, a cathode electrode and a polymer electrolyte membrane disposed between the anode electrode and the cathode electrode. A metal bipolar plate is disposed between the anode electrode of one fuel cell unit and the cathode electrode of an adjacent fuel cell unit. The metal bipolar plate is made of a chromium-nickel austenitic alloy, in which the chromium and the nickel, on a combined basis, make up at least about 50% by weight of the alloy.