A power storage cell comprises an electrode assembly, a collector plate that has the first electrode sheet connected thereto, and a laminate film, wherein the collector plate has a peripheral edge portion including an inner side located closer to the electrode assembly and an outer side located on a side opposite to the electrode assembly with respect to the inner side, the collector plate is provided with a welding portion and an adhesive portion, and when a direction from the inner side toward the outer side is defined as a first direction and a direction intersecting the first direction is defined as a second direction, the welding portion and the adhesive portion are aligned in the second direction.