Patent ID: 11967848
Assignee: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 12:
13. The battery module according to claim 9, wherein in a process of performing the charging and discharging operations, a discharge current is a preset discharge current and a charging current is a preset charging current, wherein determining a state of health of the electrochemical cell pack based on the target time comprises:
determining a third state of health of the electrochemical cell pack based on duration in which discharging is performed based on the preset discharge current, a first state of charge, and a second state of charge, wherein the first state of charge is obtained before the electrochemical cell pack is discharged, and the second state of charge is obtained after the electrochemical cell pack is discharged to a cut-off voltage and before the electrochemical cell pack is charged;
determining a fourth state of health of the electrochemical cell pack based on duration in which charging is performed based on the preset charging current, the second state of charge, and a third state of charge that is obtained after the electrochemical cell pack is fully charged; and
determining the state of health of the electrochemical cell pack based on the third state of health and the fourth state of health.