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:
Oct. 19, 2004
Filed:
Feb. 11, 2002
Applicant:
Inventors:
Zhigang Qi, North Arlington, NJ (US);
Arthur Kaufman, West Orange, NJ (US);
Assignee:
H Power Corporation, Belleville, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/00 ;
U.S. Cl.
CPC ...
H01M 8/00 ;
Abstract
A membrane-electrode assembly for electrochemical cells such as proton exchange membrane fuel cells and direct methanol fuel cells operating at ambient conditions are activated first by exposing them at a temperature higher than ambient temperature and with the gaseous reactants back-pressurized. The performance of the membrane-electrode assemblies, especially those whose electrodes are of low catalyst loadings made using supported catalysts, improves dramatically after the activation.