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:
Jan. 29, 2019
Filed:
Feb. 24, 2016
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventor:
Tatsuya Ishibashi, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/00 (2006.01); H01M 10/633 (2014.01); G01R 31/36 (2006.01); H01M 10/48 (2006.01); H01M 10/635 (2014.01); H01M 10/0525 (2010.01); H01M 10/44 (2006.01); H02J 7/00 (2006.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
H01M 10/633 (2015.04); G01R 31/36 (2013.01); H01M 10/0525 (2013.01); H01M 10/425 (2013.01); H01M 10/446 (2013.01); H01M 10/48 (2013.01); H01M 10/486 (2013.01); H01M 10/635 (2015.04); H02J 7/0047 (2013.01); H01M 2010/4271 (2013.01); H01M 2010/4278 (2013.01); H02J 2007/005 (2013.01); Y02T 10/7011 (2013.01);
Abstract
A battery management device includes an SOC estimation unit, a storage unit, and a lithium deposition determination unit. The lithium deposition determination unit compares a differential coefficient of a battery voltage with respect to an SOC estimated by the SOC estimation unit and a differential coefficient of a battery voltage with respect to a reference SOC read from the storage unit, and determines that, if a difference is observed between the differential coefficients, lithium is deposited in a lithium ion secondary battery.