APPARATUS AND METHOD FOR DIAGNOSING BATTERY

The apparatus for diagnosing a battery according to an embodiment of the present disclosure includes a profile obtaining unit configured to obtain a differential profile representing a corresponding relationship between a differential capacity and a voltage of a battery; and a control unit configured to determine a target peak from the differential profile, calculate a voltage change rate based on a SOH of the battery and a target voltage of the target peak, and compare the calculated voltage change rate with a preset reference change rate to diagnose a state of the battery.