| abstract |
Disclosed is a composite cathode active material, a method for producing the composite cathode active material, and a cathode and a lithium battery employing the composite cathode active material. The composite cathode active material includes an overlithiated lithium transition metal oxide having a layered structure, and a Li ion layer of Li 2 MnO 3 phase is doped with a metal cation. The lithium battery including the composite lithium ion battery has a charge / As the film progresses, the change of the discrete music piece can be suppressed, thereby improving the capacity and the life characteristic. |