METHOD AND APPARATUS FOR CHARGING BATTERY

A method of charging a battery including a plurality of cells, the method including charging the plurality of cells at a plurality of C-rates, respectively; calculating a voltage change of each of the plurality of cells and a slope of the voltage change of each of the plurality of cells; and performing discharging multiple times in a section where a deviation between the slopes of the voltage changes of the plurality of cells is equal to or larger than a predetermined reference value.