Battery pack and vehicle

The invention discloses a battery pack and a vehicle, the battery pack comprises at least one battery cell and a heat exchange plate, at least part of the heat exchange plate is constructed into a box-shaped structure, the box-shaped structure is divided into a heat exchange accommodating cavity, and each battery cell is accommodated in the heat exchange accommodating cavity. Therefore, at least part of the heat exchange plate is constructed into a box-shaped structure and is provided with a plurality of heat exchange accommodating cavities, and each heat exchange accommodating cavity can realize heat exchange with the battery cells so as to realize cooling of the battery cells, on one hand, each battery cell can be directly arranged in the corresponding heat exchange accommodating cavity, the fixing mode of the battery cells is simplified, and the heat exchange efficiency of the battery cells is improved; the packing efficiency of the battery pack (namely the assembly convenience of the battery pack) can be