BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME

A battery module includes a battery cell stack containing a plurality of battery cells stacked along a first direction; and an exterior member that wraps the outer surface of the battery cell stack, in which a central portion of the lower surface of the battery cell stack is opened, wherein one end part of the exterior member is attached to one side part of the lower surface of the battery cell stack, and wherein the other end part of the exterior member is attached to the other side part of the lower surface of the battery cell stack.