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. 05, 2008
Filed:
Apr. 15, 2003
Xiaoming Ren, Menands, NY (US);
Juan J. Becerra, Altamont, NY (US);
Robert S. Hirsch, Troy, NY (US);
Shimshon Gottesfeld, Niskayuna, NY (US);
Frank W. Kovacs, Waterford, NY (US);
Kevin J. Shufon, Troy, NY (US);
Xiaoming Ren, Menands, NY (US);
Juan J. Becerra, Altamont, NY (US);
Robert S. Hirsch, Troy, NY (US);
Shimshon Gottesfeld, Niskayuna, NY (US);
Frank W. Kovacs, Waterford, NY (US);
Kevin J. Shufon, Troy, NY (US);
MTI MicroFuel Cells, Inc., Albany, NY (US);
Abstract
A passive direct oxidation fuel cell system, which uses a high concentration fuel such as neat methanol as a direct feed to an anode aspect of the fuel cell, is provided. The fuel cell includes a passive water management capability, achieved by the combined functions of controlled fuel dosing, effective push back of liquid water from the cathode through the membrane electrolyte by a hydrophobic microporous layer well bonded to the cathode catalyst and the use of a thin ionomeric membrane. The rate of fuel delivery is controlled by a passive fuel transport barrier. Carbon dioxide management techniques are also provided.