BATTERY MANAGEMENT APPARATUS AND METHOD

A battery management apparatus 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 plurality of peaks in the differential profile, calculate a capacity of each of a plurality of voltage sections distinguished based on the plurality of peaks, calculate a capacity change rate of each of the plurality of voltage sections based on the calculated plurality of capacities and a preset reference capacity, and diagnose a state of the battery according to the calculated plurality of capacity change rates.