| 摘要 |
PROBLEM TO BE SOLVED: To reliably prevent a packing from rotating relative to a lid while saving the weight and reducing a material.SOLUTION: A power storage element comprises: outer package members 2 and 4 having an upper surface 4b of which a projection 4c is projected; a plate-like member 21; and a shaft part 22b. The plate-like member 21 includes an upper surface exposing from the outer package members 2 and 4, the shaft part 22b has external terminals 14 and 15 projecting from a lower surface of the plate-like member 21, collectors 12 and 13 that are arranged in the outer package members 2 and 4 and are connected to the external terminals 14 and 15, an electrode body 3 that is arranged in the outer package members 2 and 4 and is connected to the collectors 12 and 13, main bodies 16a to 16d, and a projection part 16e. The main bodies 16a to 16d are arranged between the plate-like member 21 and the upper surface of outer package members 2 and 4, and has a side surface. The projection part 16e is extended from a place near a lower end of the side surface and has an insertion hole 16f to which the projection 4c of the outer package members 2 and 4 is inserted. The projection part 16e further has a packing 16 having the side wall with a width narrower than that in a plane view that is a direction orthogonal to the upper surface.SELECTED DRAWING: Figure 6 |
