Abstract
To provide an anode material for a secondary battery, making the secondary battery have good capacitance and stability.SOLUTION: An anode material for a secondary battery includes a metal oxide containing four or more elements, or an oxide mixture containing four or more elements. The metal oxide includes cobalt-copper-tin oxide, silicon-tin-iron oxide, copper-manganese-silicon oxide, tin-manganese-nickel oxide, manganese-copper-nickel oxide, or nickel-copper-tin oxide. The oxide mixture includes an oxide mixture containing cobalt, copper and tin, an oxide mixture containing silicon, tin and iron, an oxide mixture containing copper, manganese and silicon, an oxide mixture containing tin, manganese and nickel, an oxide mixture containing manganese, copper and nickel, or an oxide mixture containing nickel, copper and tin.