Electrical energy storage pack

An electrical energy storage pack comprising a plurality of electrical energy storage devices, and a case that accommodates the plurality of electrical energy storage devices, wherein

• the case includes a main body part that includes a bottom surface, a bottom surface cover that covers the bottom surface from an outer surface side, an air flow path that is provided between the bottom surface and the bottom surface cover and communicates with an outside of the case, a refrigerant flow path that is provided between the bottom surface and the bottom surface cover and lets a refrigerant flow therein, and a seal material that is disposed so as to surround an outer edge of the refrigerant flow path and adheres to the bottom surface and the bottom surface cover, thereby sealing the refrigerant flow path,
• the bottom surface of the main body part includes, on a surface on a side facing the bottom surface cover, an air flow concave part that is recessed to a side of separating from the bottom surface cover and sections the air flow path, a refrigerant concave part that is at least partially adjacent to the air flow concave part through the seal material, is recessed to the side of separating from the bottom surface cover, and sections the refrigerant flow path, and a boss part that projects toward the bottom surface cover on a side of the air flow concave part relative to the seal material at a border part between the air flow concave part and the refrigerant concave part, and
• the bottom surface cover is screwed to the boss part.