One of the objects of the present invention is to provide an electrode having an active material layer and an insulating layer formed on a current collector in which the insulating layer has sufficient adhesion and which can be manufactured without significantly changing the manufacturing process. The electrode comprises a current collector 110, an active material layer 111 formed on at least one surface of the current collector 110, and an insulating layer 112 formed on the surface of the active material layer 111. The active material layer 111 includes an active material and a first binder. The insulating layer 112 includes non-conductive particles and a second binder. An interfacial binder ratio, which is a ratio of amount of a binder existing in an interface region between the active material layer 111 and the insulating layer 112 per unit thickness of the interface region to amount of a binder existing in the active material layer 111 per unit thickness of the active material layer 111, is 85% or more.