Power storage device

Abstract

A power storage device includes: a rectangular cylindrical case body having openings at both ends in the length direction of the case body; an electrode body housed in the case body; a first lid attached to the opening at one end of the case body in the length direction; and a second lid attached to the opening at another end of the case body in the length direction. The case body includes a pair of opposed wide width surfaces and a pair of opposed narrow width surfaces continuous with the pair of wide width surfaces. A plurality of projections along the length direction of the case body are located on an inner side of at least a surface of the narrow width surfaces and the wide width surfaces of the case body.

Dependencies are inferred from the claim text.