BATTERY CHARGING DEVICE AND BATTERY FORMATION SYSTEM INCLUDING SAME

A battery charging apparatus according to the present disclosure includes a current supply circuit configured to supply charging current through a plurality of conducting wires that each corresponds to respective one of the plurality of batteries; and a charging jig configured to support the plurality of batteries and provide the charging current supplied through the plurality of conducting wires to the plurality of batteries, wherein the charging jig includes a plurality of connection pins electrically connecting the plurality of conducting wires to the first electrode terminals of the plurality of batteries; a conductive plate that is in common contact with the second electrode terminals of the plurality of batteries to allow the second electrode terminals to have the same potential; and a cooling structure having a cooling channel through which a cooling material moves and configured to cool the conductive plate.