POWER STORAGE MODULE

A plurality of first protrusions each protruding from one of an end plate and a contact plate portion toward the other of the end plate and the contact plate portion are provided side by side in the second direction. Each of the plurality of first protrusions has a top portion at a tip of the first protrusion with a width of the first protrusion in the second direction being narrower in a direction from the one of the end plate and the contact plate portion toward the other of the end plate and the contact plate portion, and is in abutment with the other of the end plate and the contact plate portion at the top portion. The plurality of first protrusions include a first protrusion having a top portion overlapping with any one joining portion of a plurality of joining portions when viewed in the first direction.