US 11,782,096 B2
Method and system for improving state of health of rechargeable batteries
Arijit Guha, Bangalore (IN); Subramanian Swernath Brahmadathan, Bangalore (IN); Krishnan S Hariharan, Bangalore (IN); Piyush Tagade, Bangalore (IN); Rajkumar Subhash Patil, Bangalore (IN); and Jeonghoon Jo, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Feb. 5, 2021, as Appl. No. 17/169,402.
Claims priority of application No. 202041005492 (IN), filed on Feb. 7, 2020.
Prior Publication US 2021/0247460 A1, Aug. 12, 2021
Int. Cl. G01R 31/392 (2019.01); H01M 10/42 (2006.01); G01R 31/374 (2019.01); G01R 31/3842 (2019.01)
CPC G01R 31/392 (2019.01) [G01R 31/374 (2019.01); G01R 31/3842 (2019.01); H01M 10/425 (2013.01); H01M 2010/4271 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of improving state of health (SoH) of rechargeable batteries, the method comprising:
obtaining, by a battery management system, a first battery capacity loss based on data stored in memory;
receiving, by a battery management system, a plurality of battery parameters from a battery operatively connected with the battery management system during charging of the battery;
determining, by the battery management system, degradation parameters of the battery by comparing model parameters of the battery and the received battery parameters;
determining, by the battery management system, new charging current profile of the battery based on the degradation parameters of the battery;
applying, by the battery management system, the determined new charging current profile to the battery;
determining, by the battery management system, a second battery capacity loss based on the determined new charging current profile applied to the battery;
comparing, by the battery management system, the determined second battery capacity loss with the first battery capacity loss obtained before applying the determined new charging current profile to the battery; and
calculating, by the battery management system, a remaining lifetime of the battery based on the comparison of the first battery capacity loss and the second battery capacity loss.