POWER SUPPLY DEVICE, VEHICLE INCLUDING SAME, AND METHOD FOR MANUFACTURING POWER SUPPLY DEVICE

摘要

[Problem] It make it possible to maintain thermal coupling between a battery cell and a cooling plate, while avoiding a situation in which condensation occurs on the surface of the battery cell. [Solution] Provided is a power supply device that includes: a battery stack that is formed by stacking a plurality of square-shaped battery cells (1); a covering case (16) that covers the outside of the battery stack (5) apart from a portion of one surface of the battery stack (5); and a cooling plate (61) that is placed on the one surface of the battery stack (5) in a thermal coupling state to perform heat exchange with the battery stack (5) by having a refrigerant flowing therein. The power supply device further includes a waterproof sheet (19) that covers the one surface of the battery stack (5), a filling layer (18) formed by injecting a filling material is interposed between the battery stack (5) and the coating case (16), and the waterproof sheet (19) is fixed by the filling layer (18).