NOVELTY - An anode and a cathode are prepared, and a membrane is set between the anode and cathode. The anode comprises an anode collector and an anode material provided on the anode collector. The cathode comprises a cathode collector and a cathode material provided on the cathode collector. The membrane comprises a polymer base component. An additive is attached to the surface of anode collector, cathode collector, and/or membrane by contacting additive in gaseous state with the surface of anode collector, cathode collector, and/or membrane.    USE - Preparation of battery.    ADVANTAGE - The method provides batteries having high capacitance even after being recycled.    DETAILED DESCRIPTION - An anode and a cathode are prepared, and a membrane is set between the anode and cathode. The anode comprises an anode collector and an anode material provided on the anode collector. The cathode comprises a cathode collector and a cathode material provided on the cathode collector. The membrane comprises a polymer base component. An additive is attached to the surface of anode collector, cathode collector, and/or membrane by contacting additive in gaseous state with the surface of anode collector, cathode collector, and/or membrane, and making the surface temperature lower than the gasification temperature of the additive during contacting. The additive is ethane diacid, propane diacid, succinic acid, pentane diacid, hexanedioic acid, heptane diacid, octane diacid, anchoic acid, decanedioic acid, phthalic acid, fumaric acid, acrylic acid, methacrylic acid, ammonium chloride, succinyl oxide, and/or acetic anhydride. The anode collector is aluminium foil, copper foil, nickel-coated steel strip, or nickel screen. The anode material contains positive active substance, adhesive, and conductive agent. The positive active substance is lithium-iron phosphate, lithium-vanadium phosphate, and/or lithium cobaltate. The cathode collector is aluminium foil, copper foil, nickel-coated perforated steel ribbon, or silicon thin film. The cathode material contains negative active substance, adhesive, and conductive agent. The negative active substance is hydrogen storage alloy, cadmium oxide, or graphite. The conductive agent is soot carbon, acetylene black, nickel powder, copper powder, cobalt hydroxide, cobalt oxide, and/or conductive graphite.