BATTERY MANAGEMENT APPARATUS AND METHOD

A battery management apparatus according to an embodiment of the present disclosure includes a voltage measuring unit configured to measure a voltage of a battery module and output a measured voltage value; a current measuring unit configured to measure a charging current of the battery module and output a measured current value; and a control unit configured to receive the measured voltage value and the measured current value, estimate a SOC (State Of Charge) of the battery module based on the measured voltage value and the measured current value, calculate an accumulated change rate by adding up a change rate of the estimated SOC per unit time, and detect whether the battery module has a defect by comparing the calculated accumulated change rate with a reference change rate.