Disclosed is a negative electrode active material which has a high capacity and good cyclability. The negative electrode active material comprises nanosize carbon particles and nanosize tin dioxide particles that are supported in a high-dispersion state on...

An anode material contains reduced tin dioxide. An Independent claim is also included for the production of the anode material comprising binding a tin chloride solution with urea; binding the solution obtained with urotropin; emulsifying the sol obtained ...

Anode material contains doped tin oxide. Independent claims are also included for: (a) an anode material comprising reacting a tin chloride solution with urea; reacting the solution formed with urotropin and a suitable doping compound; emulsifying the sol ...