Electrode assembly, method for producing electrode assembly, and electric storage device including electrode assembly

An object is to provide an electrode assembly in which even when a short-circuit occurs between the negative electrode active material layer in the vicinity of the periphery of the negative electrode active material layer and the positive electrode current collector, the short-circuit current can be suppressed, and additionally, which can be easily produced. Another object is to provide an electric storage device including such an electrode assembly, and a method for producing the electrode assembly. Provided is an electrode assembly including: a negative electrode including a negative electrode current collector (NC) and a negative electrode active material layer (NAL) disposed on at least one surface of the NC; a positive electrode including a positive electrode current collector (PC), a positive electrode active material layer (PAL) disposed on at least one surface of the PC, and an undercoat layer being disposed between the PC and the PAL and being higher in resistance value than the PC. The negative electrode and the positive electrode are stacked on each other. In at least one side of the thus stacked negative and positive electrodes, the NAL projects from an edge of the PAL in a direction in which the NC and PC extend, and the undercoat layer projects from an edge of the NAL in the direction.