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. 11, 2022
Filed:
May. 07, 2018
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Keisuke Ogasawara, Tokyo, JP;
Toshihiro Wada, Tokyo, JP;
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/389 (2019.01); G01K 13/00 (2021.01); H01M 10/42 (2006.01); G01R 31/392 (2019.01); H01M 10/48 (2006.01); G01R 31/374 (2019.01);
U.S. Cl.
CPC ...
G01R 31/389 (2019.01); G01K 13/00 (2013.01); G01R 31/374 (2019.01); G01R 31/392 (2019.01); H01M 10/4285 (2013.01); H01M 10/48 (2013.01);
Abstract
The battery degradation detection device includes an impedance measurement unit and a degradation detection unit. The impedance measurement unit measures impedances of a battery at a plurality of frequencies. The impedance for at least one of the plurality of frequencies, measured by the impedance measurement unit, has a positive imaginary component. The degradation detection unit detects degradation of the battery on the basis of real components of the impedances at the plurality of frequencies detected by the impedance measurement unit.