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. 04, 2014

Filed:

Jun. 14, 2006
Applicants:

Takatsugu Koyama, Wako, JP;

Mitsunori Matsumoto, Wako, JP;

Akio Yamamoto, Wako, JP;

Hiroyuki Tanaka, Wako, JP;

Seiji Tonegawa, Wako, JP;

Nobutaka Nakajima, Wako, JP;

Shinjiro Morita, Wako, JP;

Inventors:

Takatsugu Koyama, Wako, JP;

Mitsunori Matsumoto, Wako, JP;

Akio Yamamoto, Wako, JP;

Hiroyuki Tanaka, Wako, JP;

Seiji Tonegawa, Wako, JP;

Nobutaka Nakajima, Wako, JP;

Shinjiro Morita, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/04 (2006.01); H01M 2/38 (2006.01); H01M 2/40 (2006.01); H01M 8/24 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed is a fuel cell system which includes a fuel cell having an anode and a cathode and for producing electricity through reaction between the fuel gas and the oxidant gas, a fuel gas supply path through which the fuel gas passes, an oxidant gas supply path through which the oxidant gas passes, a voltage sensing device for detecting voltage produced by the fuel cell during power generation, and a decision device for determining whether or not cross leakage occurs between the anode and the cathode of the fuel cell, based on voltage information sent from the voltage sensing device. Moreover, the decision device determines that the cross leakage occurs between the anode and the cathode, if the voltage produced by the fuel cell is less than a predetermined value during the power generation.


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