Abstract: One aspect of the present invention is an electrode comprising: a conductive substrate; an intermediate layer layered on a surface of the substrate and containing a conductive substance and a first binder; and an active material layer layered on a surface of the intermediate layer and containing a second binder. Each of the first binder and the second binder is an aqueous binder, or each of the first binder and the second binder is a nonaqueous solvent-based binder. The intermediate layer further contains an insulating filler.

Abstract: A purpose of the present invention is to provide a technique for still further improving safety by increasing the resistance change ratio in a high-temperature range in a nonaqueous electrolyte energy storage device, the internal resistance of which increases with an increase in internal temperature. In a positive electrode plate for nonaqueous electrolyte energy storage device, an intermediate layer containing an electrically conducting agent and a binder is provided between a positive electrode current collector and a positive composite layer, and as the binder in the intermediate layer, one having a mass average molecular weight larger than that of a binder in the positive composite layer is used. Consequently, the resistance change ratio in a high-temperature range can be increased.