US 11,855,476 B2
Charger and control method thereof
Hyunkeun Shin, Seoul (KR); and Seonghoon Han, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Dec. 3, 2020, as Appl. No. 17/111,010.
Claims priority of application No. 10-2019-0172210 (KR), filed on Dec. 20, 2019.
Prior Publication US 2021/0194267 A1, Jun. 24, 2021
Int. Cl. H02J 7/00 (2006.01); H01M 10/44 (2006.01)
CPC H02J 7/007194 (2020.01) [H01M 10/443 (2013.01); H02J 7/0047 (2013.01); H02J 7/00711 (2020.01)] 14 Claims
OG exemplary drawing
 
1. A method for charging a battery, comprising:
determining a temperature of the battery when a charger is connected to the battery; and
charging the battery based on the temperature of the battery,
wherein charging the battery includes:
applying a series of modulated pulses of a prescribed pulse width and a prescribed pulse repetition interval to the battery when the temperature of the battery is greater than an upper limit of a charge allowable temperature range for the battery and equal to or less than an upper limit of a discharge allowable temperature range for the battery; and
applying at least one of a constant current or a constant voltage to the battery when the temperature of the battery is within the charge allowable temperature range,
wherein the charge allowable temperature is a temperature range in which a probability that an exothermic reaction of a predetermined amount or more occurs in a battery is greater than or equal to a first threshold value as the battery charged,
wherein the discharge allowable temperature is a temperature range in which a probability that the exothermic reaction of a predetermined amount or more occurs in a battery is greater than or equal to a second threshold value as a battery is discharged.