COOLING DEVICE AND BATTERY PACK INCLUDING SAME

A cooling device according to some embodiments includes: a heat sink including a plurality of cooling channels extending in a first direction and spaced apart from each other in a second direction perpendicular to the first direction and a plurality of hollows extending in the first direction and spaced apart from each other in the second direction; and a block coupled to the heat sink, wherein the block includes a plurality of first holes and a plurality of second holes on a side near the heat sink and on a side far from the heat sink, wherein each of the plurality of first holes overlaps a corresponding one of the plurality of cooling channels in the first direction, and each of the plurality of second holes overlaps a corresponding one of the plurality of hollows in the first direction, and each of the plurality of cooling channels includes two or more sub-channels. [0002] Some embodiments of the present disclosure can rapidly cool the battery. Accordingly, the stability of the battery can be enhanced, and rapid charging of the battery can be enabled.