BATTERY PACK AND DEVICE INCLUDING THE SAME

A battery pack includes a lower pack housing having a plurality of module regions; a partition wall that partitions the plurality of module regions; a cell block that is mounted in each of the plurality of module regions; and a coupling member that couples the cell block and the partition wall, wherein the cell block includes a battery cell stack formed by stacking a plurality of battery cells; and a side surface plate located between the battery cell stack and the partition wall.