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:
Oct. 25, 2011

Filed:

May. 24, 2006
Applicants:

Hae-kyoung Kim, Seoul, KR;

Jung-min OH, Yongin-si, KR;

Jae-yong Lee, Seongnam-si, KR;

Hyuk Chang, Seongnam-si, KR;

Inventors:

Hae-Kyoung Kim, Seoul, KR;

Jung-Min Oh, Yongin-si, KR;

Jae-Yong Lee, Seongnam-si, KR;

Hyuk Chang, Seongnam-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/22 (2006.01); H01M 8/10 (2006.01); H01M 8/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A fuel cell system is provided with a first separation layer and a buffer solution layer disposed between a liquid-phase fuel storage layer and an anode of a membrane electrode assembly. A vapor-phase fuel is transferred to the buffer solution layer through the first separation layer, condensed, and diluted to produce a liquid-phase fuel with a low concentration in the buffer solution layer, and the low concentration liquid-phase fuel is supplied to the membrane electrode assembly. A second separation layer may be interposed between the first separation layer and the fuel storage layer. Fuel is supplied by a passive supplying method so that the system can be small with a high efficiency and unnecessary power consumption can be prevented. The fuel cell system can be operated regardless of orientation.


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