Battery Pack

A battery pack includes a first sub-battery pack and a second sub-battery pack each including a plurality of battery module including a plurality of battery cells arranged in one direction, and stacked in a height direction of the plurality of battery cells; and a heat sink disposed between the first sub-battery pack and the second sub-battery pack and including a cooling flow path, wherein the first sub-battery pack and the second sub-battery pack are disposed symmetrically with respect to the heat sink.