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:
Nov. 03, 2020
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Inventors:
Ryo Kanada, Toyota, JP;
Kenji Takahashi, Toyota, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/48 (2006.01); G01R 31/392 (2019.01); H01M 10/0525 (2010.01); H02J 7/00 (2006.01); G01R 31/3828 (2019.01);
U.S. Cl.
CPC ...
H01M 10/48 (2013.01); G01R 31/3828 (2019.01); G01R 31/392 (2019.01); H01M 10/0525 (2013.01); H02J 7/0049 (2020.01);
Abstract
A diagnostic apparatus for a secondary battery includes a control device. The control device acquires an electricity storage amount that is the amount of electricity stored in the secondary battery, and V/K indicating the magnitude of change in OCV of the secondary battery with respect to temperature change of the secondary battery. The control device determines whether or not an SOC unevenness occurs in an electrode surface of the secondary battery by using the acquired electricity storage amount and V/K.