公开(公告)号：US20210359317A1

公开(公告)日：2021-11-18

申请号：US17318169

申请日：2021-05-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Anshul KAUSHIK ,  Atanu TALUKDAR ,  Rajkumar Subhash PATIL ,  Shashishekara Parampalli ADIGA ,  Daebong JUNG

IPC: H01M8/04537 ,  H01M8/0662

Abstract: A method for estimating a plurality of parameters pertaining to an electrochemical model of a cell may include: obtaining, by a device, an Electrochemical Impedance Spectroscopy (EIS) spectrum and a Constant Current-Constant Voltage (CC-CV) charge-Constant Current (CC) discharge response of the cell; extracting, by the device, a plurality of features from the EIS spectrum and a plurality of features from the CC-CV charge-CC discharge response of the cell; and estimating, by the device, the plurality of parameters based on at least one of the plurality of features of the EIS spectrum and at least one of the plurality of features of the CC-CV charge-CC discharge response of the cell.

公开(公告)号：US20210239766A1

公开(公告)日：2021-08-05

申请号：US17165100

申请日：2021-02-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Atanu TALUKDAR ,  Anshul KAUSHIK ,  Arunava NAHA ,  Shashishekara Parampalli ADIGA

IPC: G01R31/392 ,  G01R31/389 ,  G01R31/371 ,  G01R31/367 ,  H02J7/00

Abstract: The present disclosure relates to a method and apparatus for accurately detecting an operating status of a battery in a battery system, where the method includes determining a charging profile of a battery in a battery system, identifying a constant voltage and a corresponding constant current in a charging cycle of the charging profile, estimating at least one of a decay constant or an internal resistance associated with the battery, using at least one of the constant voltage or the constant current, comparing the decay constant with a first threshold value or comparing the internal resistance with a second threshold value, and detecting an operating status of the battery to be faulty or healthy, based on the comparison.