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.

Date of Patent:
Mar. 25, 2008

Filed:

May. 30, 2003
Applicants:

Robert S. Hirsch, Troy, NY (US);

Juan J. Becerra, Altamont, NY (US);

Inventors:

Robert S. Hirsch, Troy, NY (US);

Juan J. Becerra, Altamont, NY (US);

Assignee:

MTI MicroFuel Cells Inc., Albany, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/00 (2006.01); H01M 4/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a fuel efficient membrane electrode assembly that substantially resists methanol from 'crossing over' by sealing the anode diffusion layer and catalyst layer, and by preventing fluids from passing across at least a portion of the membrane electrolyte. The efficiency of the fuel cell is maintained because essentially all of the fuel is reacted on the catalyst layers creating electricity, which is transferred to the fuel cell load. The temperature of the fuel cell is also maintained as the uncatalyzed reaction that produces heat is prevented.


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