US 12,481,000 B2
Charging control method for battery pack, charging control apparatus for battery pack, electronic device, and storage medium
Guangjun Wang, Ningde (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed on Dec. 8, 2022, as Appl. No. 18/063,358.
Application 18/063,358 is a continuation of application No. PCT/CN2022/096956, filed on Jun. 2, 2022.
Claims priority of application No. 202122624049.2 (CN), filed on Oct. 29, 2021.
Prior Publication US 2023/0133875 A1, May 4, 2023
Int. Cl. G01R 31/387 (2019.01); G01R 31/36 (2020.01); H01M 10/44 (2006.01); H02J 7/00 (2006.01)
CPC G01R 31/387 (2019.01) [G01R 31/3648 (2013.01); H01M 10/44 (2013.01); H02J 7/0013 (2013.01); H02J 7/00302 (2020.01); H02J 7/0048 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A charging control method for a battery pack comprising two or more batteries connected in parallel and each comprising a plurality of battery cells, the method comprising:
determining, based on a charging parameter, states of charge (SOCs) corresponding respectively to the two or more batteries at elapsing of a preset charging time;
calculating, prior to the elapsing of the preset charging time, according to the SOCs, an amount of charge transfer between the two or more batteries after stopping charging at the elapsing of the preset charging time;
judging whether a charge-receiving battery cell of a charge-receiving battery is in an overcharge state according to the amount of charge transfer; and
in response to the charge-receiving battery cell being in the overcharge state, stopping charging the battery pack at the elapsing of the preset charging time.