US 12,248,024 B2
Battery classification apparatus and method
Yoon-Jung Bae, Daejeon (KR); A-Ming Cha, Daejeon (KR); and Hyun-Woo Park, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 17/925,928
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Jan. 25, 2022, PCT No. PCT/KR2022/001332
§ 371(c)(1), (2) Date Nov. 17, 2022,
PCT Pub. No. WO2022/158949, PCT Pub. Date Jul. 28, 2022.
Claims priority of application No. 10-2021-0010309 (KR), filed on Jan. 25, 2021.
Prior Publication US 2023/0184843 A1, Jun. 15, 2023
Int. Cl. G01R 31/3835 (2019.01); G01R 31/396 (2019.01); H01M 10/48 (2006.01)
CPC G01R 31/3835 (2019.01) [G01R 31/396 (2019.01); H01M 10/48 (2013.01)] 10 Claims
OG exemplary drawing
 
10. A battery classification method, comprising:
obtaining, by a controller, a differential profile representing a corresponding relationship between a differential voltage of a battery and a capacity of the battery;
detecting, by the controller, a plurality of peaks in the differential profile; and
determining, by the controller, whether the battery satisfies one or more of a plurality of preset classification conditions, wherein for each classification condition, satisfying the classification condition is based on number of detected peaks in the obtained differential profile and the differential voltage associated with each detected peak; and
classifying, by the controller, the battery into any one of a plurality of preset groups based on the preset classification conditions satisfied by the battery.