Power supply device, vehicle equipped with power supply device, and power storage device

A power supply device comprising:

• a battery stack configured to have a plurality of battery cells stacked together;
• a pair of end plates disposed at both ends of the battery stack in a stacked direction of the battery stack;
• and
• a binding bar configured to have both ends of the binding bar coupled to the pair of end plates, wherein
• the binding bar includes a plate-shaped bar that extends in the stacked direction of the battery stack, and an engagement block that is fixed to the plate-shaped bar and protrudes as a face opposing an outer peripheral face of one of the pair of end plates, and
• the one of the pair of end plates includes a fitting part to which the engagement block is guided, on the outer peripheral face of the one of the pair of end plates, and includes a stopper that is disposed at a side of the battery stack with respect to the fitting part and abuts the engagement block,
• wherein the binding bar further includes a fixed region at each end of the binding bar, the fixed region to be fixed to an outermost major surface of a corresponding end plate of the pair of end plates located outward from the stopper in the stacked direction,
• the fixed region protrudes farther inward than the engagement block in a direction perpendicular to the stacked direction, and
• the fixed region is configured to abut the outermost major surface of the corresponding end plate in the stacked direction.