BATTERY PACK AND VEHICLE COMPRISING SAME

A battery pack according to the present disclosure includes a first cell array structure having a plurality of battery cells; a second cell array structure stacked on one side of the first cell array structure and having a plurality of battery cells; and a stacking guide unit configured to guide a stacking structure of the first cell array structure and the second cell array structure, wherein the stacking guide unit includes: a middle guide unit disposed between the first cell array structure and the second cell array structure; and a side guide unit configured to at least partially cover sides of the first cell array structure and the second cell array structure and connected to the middle guide unit.