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:
Nov. 06, 2001
Filed:
May. 23, 1997
Applicant:
Inventors:
Carey L. Scortichini, Midland, MI (US);
Robert D. Mussell, Midland, MI (US);
Susan J. Babinec, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/96 ; H01M 8/04 ;
U.S. Cl.
CPC ...
H01M 4/96 ; H01M 8/04 ;
Abstract
An electrochemical fuel cell having a membrane electrode assembly and a flow field adjacent thereto wherein the flow field comprises an electrically conductive porous material having a porosity of at least about 50 percent and a mean pore size of at least about 35 microns. This fuel cell is able to operate at relatively high current densities and relatively high voltages at reduced gas flow rates.