Nanostructure cathode materials prepared by high-energy ball milling method

We prepare Li 2MnO 3 and LiNi 0.5Mn 0.3Co 0.2O 2 as nanostructure cathode materials using a high-energy ball milling method with bulk-type electrodes. The nanostructure electrodes prepared by the ball milling exhibit much smaller particle sizes in diameter than those of bulk-type electrodes. The 1st charge–discharge capacitance and efficiency of the nanostructure cathode materials are superior to those of the bulk-type electrodes. ► We prepare nanostructure cathodes using a high-energy ball milling method. ► The nanostructure electrodes exhibit much smaller particle sizes than those of bulk-type electrodes. ► The capacitance and efficiency of the nanostructure electrodes are superior to those of the bulk-type electrodes.