Patent ID: 11874330
Assignee: LG ENERGY SOLUTION, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 1:
2. The battery management apparatus according to claim 1,
wherein the control unit is configured to:
estimate a new capacity of the battery cell based on the measured current of the battery cell during a new charging and discharging cycle,
generate a new capacity-voltage differential profile based on the measured voltage during the new charging and discharging cycle and the estimated new capacity,
generate a plurality of subsets of charging and discharging cycles,
select a predetermined subset from among the plurality of generated subsets, and
diagnose a state of the battery cell based on a change pattern between the capacity-voltage differential profiles of the charging and discharging cycles of the selected predetermined group subset and the new capacity-voltage differential profile.