公开(公告)号：US20170168119A1

公开(公告)日：2017-06-15

申请号：US15373017

申请日：2016-12-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Piyush Madhukarrao TAGADE ,  Krishnan Seethalakshmy HARIHARAN ,  Tae Won SONG

IPC: G01R31/36 ,  H01M10/48 ,  G01R35/00

CPC classification number: G01R31/3651 ,  G01R35/005 ,  H01M10/48 ,  H01M2220/20

Abstract: A method includes estimating an average concentration of ions in electrodes of a battery and estimating a state-of-charge (SOC) of the battery by Coulomb counting, correcting the ion concentration based on a difference in predicted and measured cell voltages, and correcting the Coulomb counting SOC based on a relation between SOC estimated by Coulomb counting and the average concentration, and the difference in the predicted and measured cell voltages.