Lithium titanate/C composite electrode material and method for producing the same

The invention relates to a lithium titanate/C composite electrode material and a preparation method thereof, belonging to the field of electrochemical power sources. The technical problem to be solved by the invention is that the Li4Ti5O12/C composite electrode material with the simple preparation method and the high charge-discharge rate is provided. The technical proposal is as follows: titanium dioxide is taken as a titanium source, polymeric lithium carboxylic salt is taken as a lithium source and a carbon source, and the Li4Ti5O12/C composite electrode material with the high charge-discharge rate performance is prepared by solid phase reaction. The method has low cost and simple process, and the prepared Li4Ti5O12/C composite material has high charge-discharge rate performance and greater gram capacity, thereby being capable of being widely applied in lithium-ion batteries which are needed by mobile communication, various portable electronic devices and various electric cars.