The nitrogen-doped carbon-coated Li[Ni0.8Co0.1Mn0.1]O2 (NC-NCM811) was prepared by a facile one-step calcination method in an N2 atmosphere, as depicted in synthesis scheme Fig. . To examine the properties of different coating thickness, different weight propositions of uric acid is used. Firstly, 1 g of NCM811 cathode material was initially mixed with 0.05g, 0.1g, and 0.15g of uric acid, respectively using a mortar and pestle. Secondly, the mixed materials were further ballmixed completely for 1 h at 300 rpm. Then, the obtained finely mixed materials were calcined in a tube furnace at 600 °C for 4 h in an N2 atmosphere. For the different weight prepositions of uric acid, the obtained nitrogen-doped carbon-coated NCM811 materials were denoted as 0.05NC-NCM, 0.1NC-NCM, and 0.15NC-NCM811 respectively.