Title:
SPLIT CHARGING/DISCHARGING METHOD FOR SECONDARY BATTERY, BATTERY MANAGEMENT SYSTEM, AND BATTERY PACK COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2024/091048
Kind Code:
A1
Abstract:
A split charging/discharging method according to the present invention is a method for charging/discharging a state of charge section, SOC a or SOC b, for a secondary battery, comprising: a charging step of charging a secondary battery; and a discharging step of discharging the secondary battery charged in the charging step, wherein: the charging and discharging steps are repeated; in the charging step, charging is terminated when a measured voltage value of the secondary battery reaches a charge termination reference voltage; and in the discharging step, discharging is terminated when a measured discharge capacity reaches a value obtained by multiplying Coulombic efficiency by capacity Qc charged in the charging step. (Here, a < b, a is a value of 0% or greater but less than 100%, and b is a value of 100% or less but greater than 0%.)
Inventors:
KIM HYE JIN (KR)
KIM KI WOONG (KR)
KIM KI WOONG (KR)
Application Number:
PCT/KR2023/016810
Publication Date:
May 02, 2024
Filing Date:
October 27, 2023
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M10/44; H01M4/58; H01M10/052; H01M10/42; H02J7/00
Attorney, Agent or Firm:
KIM, Hong Gyun (KR)
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