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:
Nov. 24, 2015

Filed:

Feb. 06, 2013
Applicant:

Yokogawa Electric Corporation, Musashino-shi, Tokyo, JP;

Inventors:

Souichirou Torai, Musashino, JP;

Daisuke Yamazaki, Musashino, JP;

Nobuhiro Tomosada, Musashino, JP;

Tomomi Akutsu, Musashino, JP;

Makoto Kawano, Musashino, JP;

Tetsuo Yano, Musashino, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/36 (2006.01); G01R 27/02 (2006.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
G01R 27/02 (2013.01); G01R 31/3662 (2013.01); H01M 10/42 (2013.01);
Abstract

An electrode evaluation apparatus for evaluating a characteristic of an electrode based on an electrochemical property includes a potential control unit, an impedance acquiring unit, a current value acquiring unit, and a normalized impedance calculation unit. The potential control unit is configured to control a potential applied to an electrode. The impedance acquiring unit is configured to acquire an impedance characteristic of the electrode under a specific DC operating condition provided by the potential control unit. The current value acquiring unit is configured to acquire a temporal change in direct current value under the specific DC operating condition. The normalized impedance calculation unit is configured to apply the temporal change in direct current value acquired by the current value acquiring unit to calculate a normalized impedance where impedance acquired by the impedance acquiring unit is multiplied by the direct current value.


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