US 11,705,588 B2
Shutdown method and terminal
Jinlong Zhang, Beijing (CN)
Assigned to BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing (CN)
Filed by BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing (CN)
Filed on Sep. 27, 2020, as Appl. No. 17/33,888.
Claims priority of application No. 202010278846.7 (CN), filed on Apr. 10, 2020.
Prior Publication US 2021/0320339 A1, Oct. 14, 2021
Int. Cl. H02J 7/00 (2006.01); H01M 10/44 (2006.01); G01R 27/02 (2006.01); H01M 10/48 (2006.01)
CPC H01M 10/443 (2013.01) [G01R 27/02 (2013.01); H01M 10/486 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A shutdown method, applicable to a terminal, wherein the terminal is provided with a rechargeable battery, and the method comprises:
determining a first impedance and a second impedance of the rechargeable battery, wherein the first impedance is an impedance determined based on a current temperature of the rechargeable battery, and the second impedance is an impedance determined based on a current number of charge times of the rechargeable battery;
determining a target impedance as a larger impedance value from the first impedance and the second impedance;
determining a shutdown voltage of the terminal based on a preset open circuit voltage of the rechargeable battery, the target impedance and a current operating current of a charging circuit; and
controlling the terminal to shut down, when an operating voltage of the rechargeable battery is decreased to the shutdown voltage.