Abstract
The invention provides a negative electrode material for a secondary battery, a negative electrode and a secondary battery. The negative electrode material for the secondary battery according to the present invention comprises a metal oxide containing four or more elements or an oxide mixture containing four or more elements. The metal oxide comprises 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 a cobalt, copper and tin-containing oxide mixture, a silicon, tin and iron-containing oxide mixture, a copper, manganese and silicon-containing oxide mixture, a tin, manganese and nickel-containing oxide mixture, a manganese, copper and nickel-containing oxide mixture, or a nickel, copper and tin-containing oxide mixture. According to the negative electrode material for the secondary battery, the secondary battery has good capacitance and stability.