US 12,228,615 B2
Electronic device for estimating battery state and operating method thereof
Jinho Kim, Yongin-si (KR); Tae Won Song, Yongin-si (KR); and Young Hun Sung, Hwaseong-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Apr. 14, 2022, as Appl. No. 17/720,971.
Claims priority of application No. 10-2021-0161221 (KR), filed on Nov. 22, 2021.
Prior Publication US 2023/0160965 A1, May 25, 2023
Int. Cl. G01R 31/3835 (2019.01); G01R 31/392 (2019.01); H01M 10/48 (2006.01)
CPC G01R 31/3835 (2019.01) [G01R 31/392 (2019.01); H01M 10/482 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device, comprising:
a memory configured to store parameters of an electrochemical model corresponding to a battery;
a sensor configured to measure a voltage of the battery; and
a processor configured to
determine a first cumulative state of charge (SOC) correction amount at a partially discharged point in time at which a SOC of the battery is corrected by a corrector for reducing a voltage difference between an estimated voltage of the electrochemical model and the measured voltage of the battery,
estimate a second cumulative SOC correction amount at a fully discharged point in time based on the first cumulative SOC correction amount and a SOC correction amount prediction curve, and
update an aging parameter of the electrochemical model based on the second cumulative SOC correction amount.