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:
Oct. 17, 2017
Filed:
Apr. 06, 2012
Applicant:
Michihito Tanaka, Nagoya, JP;
Inventor:
Michihito Tanaka, Nagoya, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/04291 (2016.01); H01M 8/04828 (2016.01); H01M 8/04537 (2016.01); H01M 8/04746 (2016.01); H01M 8/04089 (2016.01); H01M 8/04492 (2016.01); H01M 8/04119 (2016.01); H01M 8/1018 (2016.01);
U.S. Cl.
CPC ...
H01M 8/04291 (2013.01); H01M 8/0485 (2013.01); H01M 8/04104 (2013.01); H01M 8/04492 (2013.01); H01M 8/04552 (2013.01); H01M 8/04559 (2013.01); H01M 8/04753 (2013.01); H01M 8/04828 (2013.01); H01M 8/04119 (2013.01); H01M 2008/1095 (2013.01);
Abstract
A fuel cell system of the present invention can suppress an excessively wet or dry state of a fuel cell stack so as to thereby ensure the durability of the fuel cell stack. The fuel cell system supplies an oxidant gas with a reduced flow rate per unit time and for a long time period if the rate of voltage decrease of the stack becomes faster than a threshold rate, and supplies the oxidant gas with an increased flow rate per unit time and for a short time period if the rate of voltage decrease becomes slower than a threshold rate.