US 11,865,943 B2
Charging method for secondary battery, charging apparatus for secondary battery, charging device, and computer storage medium
Chenxu Luo, Ningde (CN); Jianfu He, Ningde (CN); Qian Liu, Ningde (CN); Yu Yan, Ningde (CN); Yonghuang Ye, Ningde (CN); and Haizu Jin, Ningde (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde (CN)
Filed on Mar. 13, 2023, as Appl. No. 18/182,841.
Application 18/182,841 is a continuation of application No. PCT/CN2022/089479, filed on Apr. 27, 2022.
Claims priority of application No. 202111277631.4 (CN), filed on Oct. 29, 2021.
Prior Publication US 2023/0211701 A1, Jul. 6, 2023
Int. Cl. H02J 7/00 (2006.01); B60L 58/16 (2019.01); B60L 58/18 (2019.01); B60L 58/24 (2019.01); H01M 50/572 (2021.01); H01M 50/155 (2021.01); H01M 4/485 (2010.01); H01M 10/44 (2006.01)
CPC B60L 58/16 (2019.02) [B60L 58/18 (2019.02); B60L 58/24 (2019.02); H01M 4/485 (2013.01); H01M 10/44 (2013.01); H01M 50/155 (2021.01); H01M 50/572 (2021.01); B60L 2240/545 (2013.01); B60L 2240/547 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A charging method for a secondary battery, the secondary battery comprising a lithium-supplementing material, the method comprising:
acquiring a first state of health of the secondary battery in response to the secondary battery being at a preset charging node;
activating the lithium-supplementing material in response to the first state of health being less than or equal to a first threshold, to supplement lithium for the secondary battery;
performing a charging process on the secondary battery;
determining a second state of health of the secondary battery based on a working parameter of the secondary battery in the charging process; and
charging the secondary battery in response to the second state of health being greater than a second threshold.