US 12,352,818 B2
Battery management apparatus and method
Kyung-Hwa Woo, Daejeon (KR); and Yoon-Jung Bae, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 18/867,405
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
PCT Filed Jul. 11, 2023, PCT No. PCT/KR2023/009895
§ 371(c)(1), (2) Date Nov. 19, 2024,
PCT Pub. No. WO2024/014850, PCT Pub. Date Jan. 18, 2024.
Claims priority of application No. 10-2022-0085324 (KR), filed on Jul. 11, 2022; and application No. 10-2023-0089416 (KR), filed on Jul. 10, 2023.
Prior Publication US 2025/0116718 A1, Apr. 10, 2025
Int. Cl. G01R 31/389 (2019.01); G01R 31/374 (2019.01); G01R 31/382 (2019.01); H01M 10/42 (2006.01); H01M 10/44 (2006.01)
CPC G01R 31/389 (2019.01) [G01R 31/374 (2019.01); G01R 31/382 (2019.01); H01M 10/425 (2013.01); H01M 10/44 (2013.01); H01M 2010/4278 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A battery management apparatus, comprising:
a side reaction determining unit configured to determine a target peak in a differential profile representing a corresponding relationship between voltage and differential capacity of a battery, and determine whether a side reaction occurs in the battery by comparing a criterion peak of a preset criterion profile with the target peak; and
a side reaction cause determining unit configured to determine a resistance pattern of the battery with respect to a criterion voltage region in a resistance profile representing a corresponding relationship between voltage and resistance of the battery, and determine an occurrence cause of the side reaction based on the determined resistance pattern,
wherein diagnostic information on the occurrence and cause of the side reaction is used in setting operating conditions of the battery.