Battery pack

A battery pack comprising:

• battery cells spaced along a first direction;
• a module accommodating the battery cells and comprising heat dissipation members located between neighboring battery cells of the battery cells;
• and
• a duct to supply the module with coolant or absorb coolant from the module,
• wherein each of the heat dissipation members comprises a first region, a second region opposite to and spaced apart from the first region along a second direction crossing the first direction, and a third region connecting the first region and the second region and located between the first region and the second region along the second direction, the first region including a first end of the heat dissipation member and the second region including a second end of the heat dissipation member, the first region extending away from the third region in a third direction to the first end that is distal from the third region, the third direction crossing each of the first direction and the second direction, and the second region extending away from the third region in the third direction to the second end that is distal from the third region, the first end being located at a smaller height than the second end along the third direction to establish a path of the coolant outside the heat dissipation member between and overlapping along the first direction a front surface of a respective first battery cell of the neighboring battery cells and a rear surface of a respective second battery cell of the neighboring battery cells that are spaced apart in the first direction, the first region and the second region being located between the front surface of the respective first battery cell and the rear surface of the respective second battery cell, wherein the path of the coolant outside the heat dissipation member is separated from a path of a coolant outside another heat dissipation member.