| abstract |
An electronic device having a novel structure is provided. Specifically, the present invention provides an electronic device having a novel structure that can have various external shapes. Specifically, after forming an active material layer on one surface or both surfaces of a current collector, the active material layer in a bendable region is partially removed. The area where the active material layer is removed is line-shaped, dot-shaped, It can be a grid pattern or the like. After forming the active material layer on one surface or both surfaces of the current collector, laser processing is performed using laser light or the like to remove part of the active material layer in the irradiation region. The region where the surface of the current collector is exposed is a region that does not function as a battery because the active material layer is not formed. By forming such a region, a secondary battery having a movable region in a wide range can be realized. [Selection diagram] Figure 1 |