POWER STORAGE MODULE

A plurality of first protrusions (331) each protruding from one of an end plate (200) and a contact plate portion (320) toward the other of the end plate (200) and the contact plate portion (320) are provided side by side in the second direction. Each of the plurality of first protrusions (331) has a top portion (331t) at a tip of the first protrusion (331) with a width of the first protrusion (331) in the second direction being narrower in a direction from the one of the end plate (200) and the contact plate portion (320) toward the other of the end plate (200) and the contact plate portion (320), and is in abutment with the other of the end plate (200) and the contact plate portion (320) at the top portion (331t). The plurality of first protrusions (331) include a first protrusion (331) having a top portion (331t) overlapping with any one joining portion (321) of a plurality of joining portions (321) when viewed in the first direction.