POWER STORAGE UNIT AND ELECTRONIC DEVICE

摘要

A power storage unit or the like which has flexibility is achieved. An exterior body has projections and depressions. For example, part of the exterior body has projections and depressions in a wave cross-sectional shape. The shape of the projections and depressions is not limited to a shape with a curve and may be a shape with a straight line, such as a rectangle wave shape or a triangle wave shape. The projections and depressions allows the exterior body to be easily shrunk on the inner side of a bend portion and easily stretched on the outer side of the bend portion.

主权项

1. A power storage unit comprising:
a positive electrode; a negative electrode; a separator between the positive electrode and the negative electrode; an electrolyte solution; and an exterior body including the positive electrode, the negative electrode, the separator, and the electrolyte solution, wherein the exterior body comprises a surface at least part of which includes alternating projections and depressions, and wherein a cross-sectional shape of the projections and the depressions of the exterior body is a wave shape.