BATTERY MODULE AND BATTERY PACK COMPRISING SAME

Provided is a battery module comprising: a plurality of sub-modules arranged along a first direction; one or more connecting members disposed between the plurality of sub-modules, wherein at least one of the plurality of sub-modules is disposed along the first direction; and a housing having an internal space in which the plurality of cell stacks are accommodated, wherein the plurality of cell stacks each include a plurality of battery cells stacked in a second direction perpendicular to the first direction.