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:
Jan. 27, 2015

Filed:

Feb. 01, 2007
Applicants:

Atsuhito Yoshizawa, Yokohama, JP;

Kentaro Nagai, Yokohama, JP;

Inventors:

Atsuhito Yoshizawa, Yokohama, JP;

Kentaro Nagai, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/10 (2006.01); H01M 8/02 (2006.01); H01M 4/86 (2006.01); H01M 8/04 (2006.01);
U.S. Cl.
CPC ...
H01M 8/023 (2013.01); H01M 4/8605 (2013.01); H01M 8/04171 (2013.01); H01M 8/1002 (2013.01); H01M 4/861 (2013.01); H01M 4/8657 (2013.01); H01M 8/0245 (2013.01); H01M 2008/1095 (2013.01); Y02E 60/521 (2013.01);
Abstract

A fuel cell including an electrolyte film, a catalyst layer, two diffusion layers, a fuel supply layer, an oxygen supply layer, a water-absorbing layer, and a collector. The fuel cell has an opening at least in a part of a side surface parallel to a proton conduction direction of the electrolyte film among side surfaces of the fuel cell. The water-absorbing layer is present between the oxygen supply layer and the collector. An end portion of the water-absorbing layer is present on one of a plane including the opening and an opposite side of the fuel cell with the plane including the opening being a reference. A fuel cell system having a fuel cell stack including the fuel cells. The fuel cell has a high water discharging ability and is capable of maintaining stable high generation efficiency and providing a high output even while being small-sized and light-weight.


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