Patent ID: 11959969
Assignee: LG ENERGY SOLUTION, LTD.
Field: Measurement (Instruments)
Classification: CPC G  H  Y | IPC G

Claim 0:
1. An apparatus for diagnosing a battery, the apparatus comprising:
a voltage measurement circuit configured to measure a voltage of a battery cell of the battery;
a data processing circuit configured to:
calculate a target statistical value indicating a state of the battery cell based on a voltage measured by the voltage measurement circuit, and
calculate a cumulative statistical value by accumulating target statistical values of the battery cell during an analysis period; and

a diagnosis circuit configured to determine whether or not an error has occurred in the battery cell through a cumulative determination operation of comparing the cumulative statistical value with a cumulative reference value, and count a number of times of cumulative error when it is determined that the error has occurred in the battery cell in the cumulative determination operation,
wherein the apparatus is configured to control the battery based on the cumulative determination operation performed by the diagnosis circuit.