Battery pack and device including the same

Abstract

A battery pack according to one embodiment of the present invention comprises: a first case in which a first cell module assembly is housed; a second case in which a second cell module assembly stacked on the first cell module assembly is housed and which is coupled and separable from the first case, wherein a lower coupling portion configured to be movable is formed on the inner surface of the second case, and an upper coupling portion formed on the upper surface of the first case that is coupled with at least a part of the lower coupling portion may be formed.

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