Reverse Monte–Carlo simulation results for pristine^[7] LiNi_0.5Mn_0.5O₂: (a) the fitting results by using the initial random cluster model, and (b) the fitting results after the RMC calculations. Black crosses: experimental data, solid red line: calculated PDF, blue line: difference between the calculated and experimental patterns. (c) The transition metal layers for LiNi_0.5Mn_0.5O₂ with 10% of Li/Ni site exchange are represented by honeycomb, within which the atoms are distributed randomly. Yellow circles: Li atoms; red circles: Ni atoms; corners without circles: Mn.^[23]