1. A current collector for a battery comprising:(1) a layer (1) formed from an electrically conductive material including a first polymer material including (a) polymer compound having an alicyclic structure and first electrically conductive particles,
(a) the polymer compound having the alicyclic structure selected from the group consisting of (i) ring-opened polymers of a norbornene monomer and hydrogenated products thereof, (ii) addition polymers of the norbornene monomer and a vinyl monomer, (iii) monocyclic olefin polymers, (iv) cyclic conjugated diene polymers, (v) vinyl alicyclic hydrocarbon polymers, and (vi) hydrogenated products of (iii) to (v),
(2) a layer (2) which is formed on at least one surface of the layer (1), and which is a metal thin film layer formed by a sputtering method; and
(3) a layer (3) formed from an electrically conductive material including a third polymer material and electrically conductive particles, the third polymer material being at least one compound selected from the group consisting of polyvinyl acetate, polyamide, polyamide imide, polyimide, polycarbonate, polyethylene terephthalate, polybutylene terephthalate, cyclic polyolefin, polyphenylene sulfide, polytetrafluoroethylene, polyether ether ketone, silicone, nylon, vinylon, polyethylene, polypropylene, and polyphenylene ether,
wherein the layer (2) is disposed between the layer (1) and the layer (3) and a thickness of the layer (2) is in a range of 20 nm to 40 nm.