公开(公告)号：US20230160969A1

公开(公告)日：2023-05-25

申请号：US17846805

申请日：2022-06-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Deekshith PATHAYAPPILLY KRISHNAN ,  Krishnan S. HARIHARAN ,  Samarth AGARWAL ,  Subramanian Swernath BRAHMADATHAN ,  Seongho HAN

IPC: G01R31/392 ,  H02J7/00

CPC classification number: G01R31/392 ,  H02J7/005 ,  H02J7/0048

Abstract: A method for managing a battery includes obtaining a first plurality of battery parameters with respect to a first charging or discharging cycle of the battery; obtaining a second plurality of battery parameters with respect to a second charging or discharging cycle of the battery; determining a relative entropy by comparing the first plurality of battery parameters measured during the first charging or discharging cycle and the second plurality of battery parameters measured during the second charging or discharging cycle; and estimating a relative entropy value to predict a number of cycles after which a battery capacity is predicted to drop.

公开(公告)号：US20240012056A1

公开(公告)日：2024-01-11

申请号：US18327395

申请日：2023-06-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Subhasmita SAHOO ,  Krishnan S. HARIHARAN ,  Samarth AGARWAL ,  Subramanian Swernath BRAHMADATHAN ,  Sangheon LEE

IPC: G01R31/367 ,  G01R31/371 ,  G01R31/392 ,  G01R31/3842 ,  H02J7/00

CPC classification number: G01R31/367 ,  G01R31/371 ,  G01R31/392 ,  G01R31/3842 ,  H02J7/005

Abstract: A method for forecasting remaining useful life (RUL) of a battery by an electronic device is provided. The method includes forecasting the RUL of the battery based on at least one capacity value of the battery estimated by at least one of a battery capacity estimation model and a data driven model, determining whether the at least one capacity value for the charging cycle and the discharging cycle is lower than the at least one capacity value estimated by at least one of the battery capacity estimation model and the data driven model and correcting the forecasting RUL of the battery by feeding back the at least one capacity value to at least one of the battery capacity estimation model and the data driven model.

公开(公告)号：US20210080509A1

公开(公告)日：2021-03-18

申请号：US17018329

申请日：2020-09-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Samarth AGARWAL ,  Subramanian Swernath BRAHMADATHAN ,  Krishnan S HARIHARAN ,  Seongho HAN ,  Anshul KAUSHIK ,  Rajkumar Subhash PATIL

IPC: G01R31/392 ,  G01R31/36 ,  G01R31/371 ,  B60L58/16 ,  B60L3/00

Abstract: Provided are a battery state measuring method and battery management system, which predict a time point when charging capacity of a battery is to be relatively abruptly reduced. The battery state measuring method includes: monitoring a change of at least one precursor related to the charging capacity of the battery with respect to a number of charging cycles undergone by the battery; and predicting that an abrupt reduction in the charging capacity of the battery is imminent when the change of the at least one precursor follows at least one pre-configured pattern of the battery that has undergone a critical number of charging cycles.

公开(公告)号：US20230396088A1

公开(公告)日：2023-12-07

申请号：US18347880

申请日：2023-07-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ankit YADU ,  Subramanian Swernath BRAHMADATHAN ,  Samarth AGARWAL ,  Krishnan S. HARIHARAN ,  Seongho HAN ,  Sangheon LEE

IPC: H02J7/00

CPC classification number: H02J7/0071 ,  H02J7/0047 ,  H02J7/00714 ,  H02J7/007192

Abstract: A method for on-device real-time customization of charge profiles for a battery in an electronic device, and/or a corresponding device. The method may include determining at least one charging behavior parameter of the battery during every charging cycle. Further, the method may include determining at least one discharging behavior parameter of the battery subsequent to every charging cycle. Further, the method may include generating a charging profile for charging the battery based on the at least one charging behavior parameter and the at least one discharging behavior parameter. Further, the method may include charging the battery using the generated charging profile for the subsequent charging-discharging cycles.

公开(公告)号：US20210247460A1

公开(公告)日：2021-08-12

申请号：US17169402

申请日：2021-02-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Arijit GUHA ,  Subramanian Swernath BRAHMADATHAN ,  Krishnan S. HARIHARAN ,  Piyush TAGADE ,  Rajkumar Subhash PATIL ,  Jeonghoon JO

IPC: G01R31/392 ,  H01M10/42 ,  G01R31/3842 ,  G01R31/374

Abstract: The present disclosure provides a method and a system for improving the state of health (SoH) of rechargeable batteries. The method comprises receiving a plurality of battery parameters during charging of a battery and estimating model parameters of the battery using a mathematical model. The method also comprises comparing the estimated model parameters of the battery and the received battery parameters to determine degradation parameters of the battery in real-time, determining new charging current profile of the battery based on the degradation parameters of the battery, and applying the determined new charging current profile to the battery for improving the SoH of the battery.