LiNi1/3Co1/3Mn1/3O2 (NCM) is a promising cathode material for lithium-ion battery. In this research, a facile co-precipitation process is employed, during which the mixed solution of NH3 center dot H2O, H2O2 (30% aqueous solution) and LiOH center dot H2O is added into the nitrate solution. Notably, H2O2 is introduced as the oxidant and dispersant during the co-precipitation process to oxidize the metal ions and decrease the agglomeration of the precursor by giving out O-2, and then improves the specific capacity, stability and energy density of NCM. Additionally, O-3 is employed to further oxidize NCM to enhance the stability during the calcination process. The obtained NCM material with single crystal structure exhibits a high initial discharge specific capacity of 208.9 mAh g(-1) at 0.1 C (1 C = 280 mA g(-1)), an excellent cycle stability with high retained capacity of 176.3 mAh g(-1) after 50 cycles, and a high initial discharge specific capacities of 150.6 mAh g(-1) at 5 C even at a high cutoff potential (4.6 V). (C) 2015 Elsevier B.V. All rights reserved.