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:
Sep. 08, 2015
Filed:
Oct. 20, 2011
Tomomi Akutsu, Tokyo, JP;
Daisuke Yamazaki, Tokyo, JP;
Nobuhiro Tomosada, Tokyo, JP;
Atsufumi Kimura, Tokyo, JP;
Makoto Kawano, Tokyo, JP;
Souichirou Torai, Tokyo, JP;
Tetsuo Yano, Tokyo, JP;
Tomomi Akutsu, Tokyo, JP;
Daisuke Yamazaki, Tokyo, JP;
Nobuhiro Tomosada, Tokyo, JP;
Atsufumi Kimura, Tokyo, JP;
Makoto Kawano, Tokyo, JP;
Souichirou Torai, Tokyo, JP;
Tetsuo Yano, Tokyo, JP;
YOKOGAWA ELECTRIC CORPORATION, Tokyo, JP;
Abstract
There is provided a secondary battery tester for testing a state of a secondary battery based on an impedance characteristic of the secondary battery. The tester includes: an impedance acquiring section configured to acquire an impedance value of the secondary battery; and a determining section configured to determine a state of a solid electrolyte interface (SEI) layer of the secondary battery based on the impedance value acquired by the impedance acquiring section.