| abstract |
An electrode and a power storage device in which charge / discharge cycle characteristics and rate characteristics are improved and deterioration due to peeling of an active material is less likely to occur. In an electrode for a power storage device, a current collector, a first active material layer on the current collector, and particles having niobium oxide and a granular active material on the first active material layer By using an electrode having a second active material layer containing, charge / discharge cycle characteristics and rate characteristics of the power storage device can be improved. Further, when the particulate active material and the particles having niobium oxide come into contact with each other, the particulate active material is physically fixed, and pulverization due to expansion or contraction of the active material accompanying charging / discharging of the power storage device, from the current collector Deterioration such as peeling can be suppressed. [Selection] Figure 1 |