Battery pack and method for producing battery pack

A battery pack comprising a first battery, a second battery, a cooling member arranged between the first battery and the second battery in a thickness direction, and a restraining member that restrains the first battery, the second battery and the cooling member in the thickness direction, wherein

• the cooling member includes a first surface, a first convex part that surrounds an outer periphery of the first surface and protrudes to the first battery side on a basis of the first surface in the thickness direction, a second surface positioned on the opposite side to the first surface, and a second convex part that surrounds an outer periphery of the second surface and protrudes to the second battery side on a basis of the second surface in the thickness direction;
• a first heat conductive material layer is arranged on the first surface and a second heat conductive material layer is arranged on the second surface;
• the first heat conductive material layer includes a first region of which height is the same as a height of the first convex part;
• and
• the second heat conductive material layer includes a second region of which height is the same as a height of the second convex part.