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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.:

US 12007449 B1

PDFFull Text
Date of Patent:
Jun. 11, 2024

Filed:

Aug. 14, 2020

Battery management apparatus, battery management method, battery pack and electric vehicle

Applicant:

Lg Energy Solution, Ltd., Seoul, KR;

Inventors:

A-Ming Cha, Daejeon, KR;

Yoon-Jung Bae, Daejeon, KR;

Assignee:

LG ENERGY SOLUTION, LTD., Seoul, KR;

Attorney:

Bryan Cave Leighton Paisner LLP

Primary Examiner:

Zixuan Zhou

Int. Cl.
CPC ...
H02J 7/00 (2006.01); B60L 58/12 (2019.01); G01R 31/382 (2019.01); G01R 31/3842 (2019.01); G01R 31/392 (2019.01); G01R 31/396 (2019.01); H01M 10/42 (2006.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01);
U.S. Cl.
CPC ...
G01R 31/392 (2019.01); B60L 58/12 (2019.02); G01R 31/382 (2019.01); G01R 31/3842 (2019.01); G01R 31/396 (2019.01); H01M 10/425 (2013.01); H01M 10/44 (2013.01); H01M 10/48 (2013.01); H02J 7/00036 (2020.01); H02J 7/0047 (2013.01); H02J 7/005 (2020.01); H02J 7/00712 (2020.01); H02J 7/00714 (2020.01); B60L 2240/547 (2013.01); B60L 2240/549 (2013.01); H01M 2010/4271 (2013.01); H01M 2220/20 (2013.01);
Abstract

A battery management apparatus, battery management method and battery pack that detects feature points of each of a first differential capacity curve acquired by charging the battery with a first constant current, a second differential capacity curve acquired by discharging the battery with the first constant current, a third differential capacity curve acquired by charging the battery with a second constant current and a fourth differential capacity curve acquired by discharging the battery with the second constant current, and determines degradation information of the battery based on voltage values of the feature points detected from each differential capacity curve.

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