US 12,255,485 B2
Charging method for battery pack, computer-readable storage medium, and power consuming apparatus
Lan Xie, Ningde (CN); Zhen Lin, Ningde (CN); Shan Huang, Ningde (CN); Wei Li, Ningde (CN); and Shichao Li, 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 Aug. 24, 2023, as Appl. No. 18/455,076.
Application 18/455,076 is a continuation of application No. PCT/CN2021/129053, filed on Nov. 5, 2021.
Prior Publication US 2023/0396089 A1, Dec. 7, 2023
Int. Cl. H02J 7/00 (2006.01)
CPC H02J 7/00714 (2020.01) [H02J 7/0048 (2020.01); H02J 7/00711 (2020.01)] 9 Claims
OG exemplary drawing
 
1. A charging method for a battery pack comprising a battery management module, the charging method comprising:
sending, by the battery management module, a charging request for a first current to a charging pile for charging;
controlling, by the battery management module in response to determining that first-current charging of the battery pack meets a first predetermined condition, the battery pack to perform pulse discharge;
controlling, by the battery management module in response to determining that the pulse discharge of the battery pack meets a second predetermined condition, the battery pack to stop discharging, and sending a charging request for a second current to the charging pile for charging, wherein the second current is less than the first current;
determining, by the battery management module, a ratio of an amount of precipitated lithium of the battery pack to a threshold of precipitated lithium, and determining, by the battery management module, magnitude of the first current based on the ratio;
wherein the threshold of precipitated lithium is an amount of precipitated lithium that triggers an internal short circuit in the battery pack.