Battery pack and electric device comprising same

The invention provides a battery pack and an electric device comprising the same. The battery pack comprises a box body and a battery cell stacking unit positioned in the box body, in a horizontal plane, the box body has an x direction and a y direction which are perpendicular to each other, the battery cell stacking unit comprises at least two rows of battery cell unit groups which are sequentially stacked along the x direction, and two adjacent rows of battery cell unit groups are arranged in a staggered manner; each row of battery cell unit group comprises at least two battery cells which are sequentially stacked along the y direction; and a liquid cooling plate is arranged between two adjacent rows of battery cell unit groups. According to the invention, a battery module structure in a traditional battery pack and a scheme that the battery cells are directly grouped into the battery pack are canceled, so that the modularization and integration of the battery cells are realized, the number of parts in the