A secondary battery capable of improving the cycle characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode has an anode current collector, an anode active material layer that is provided on the anode current collector, and contains an anode active material containing at least one of a simple substance of silicon, an alloy of silicon, a compound of silicon, a simple substance of tin, an alloy of tin, and a compound of tin, and a coat that is provided on the anode active material layer, and contains an ionic polymer containing lithium.