Secondary battery including first electrode with penetrating through holes, first separator layer on inner walls of through holes, and second separator layer on opposing faces on first electrode and method of producing the same

A secondary battery made by laminating a separator layer and a second electrode to insides of a plurality of through holes of a first electrode, the first electrode having one face, an opposite face, a side face, and the through holes that penetrate from the one face to the opposite face, makes it possible to stably collect currents for the second electrode, and gives good cycle characteristics as a secondary battery. The secondary battery includes: the first electrode having the one face, the opposite face, the side face, and a plurality of the through holes that penetrate from the one face to the opposite face; a first separator layer that is laminated to inner walls of the through holes of the first electrode; a second separator layer that is laminated to at least one of the one face and the opposite face of the first electrode; and the second electrode that is laminated to surfaces of the first separator layer and the second separator layer, the surfaces being on the opposite side of other surfaces thereof which are in contact with the first electrode, the second electrode being continuously present across the surfaces, wherein conductivity of a carrier ion of the second separator layer is lower than that of the first separator layer.