| abstract |
PROBLEM TO BE SOLVED: To provide a power storage device having excellent charge/discharge characteristics. Provided is a power storage device in which a decrease in capacity in a charge/discharge cycle is suppressed. An electrode having a current collector and an active material layer, the active material layer having an active material and a binder, and the binder having polybenzoxazine is provided. In addition, an electrode having polybenzoxazine as a binder and another material is provided. A material exhibiting basicity may be used as the active material. Further, the electrodes may be manufactured by applying high temperature. [Selection diagram] Figure 1 |