| abstract |
One object of the present invention is to improve the charge / discharge cycle characteristics and rate characteristics, and to produce an electrode and a power storage device that are less likely to deteriorate due to peeling of the active material. In the electrode for electrical storage device, by using an electrode having a current collector, a first active material layer on the current collector, particles having niobium oxide on the first active material layer and a second active material layer containing a granular active material, The charge and discharge cycle characteristics and rate characteristics of the power storage device can be improved. In addition, since the granular active material is physically fixed by contacting the granular active material with particles having niobium oxide, deterioration such as fine powdering or peeling from the current collector due to expansion or contraction of the active material due to charging and discharging of the electrical storage device is suppressed. can do. |