| abstract |
Disclosure of Invention Problems to be Solved by the Invention An object of the present invention is to provide an electrode and a storage device which can improve charge / discharge cycle characteristics and rate characteristics, and which is less prone to deterioration due to peeling of the active material. By using an electrode having a collector, a first active material layer on the collector, and a second active material layer containing niobium oxide particles on the first active material layer and a granular active material, It is possible to improve the charge-discharge cycle characteristics and rate characteristics of the power storage device. Further, since the granular active material and the niobium oxide-containing particles come into contact with each other, the granular active material is physically fixed, thereby suppressing deterioration such as fine powdering due to expansion or contraction of the active material due to charge and discharge of the power storage device, can do. |