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In this work, Li1.2[Ni0.13Co0.13Mn0.54]0.985Zr0.015 O2 cathode material was synthesized via combustion synthesis method. The product was annealed at different temperatures of 650, 750 and 850 °C for 12 h. The effect of annealing temperature on electrochemical performance of synthesized powder was investigated using charge/discharge performance, cyclic voltammetry and impedance tests. X-ray diffraction (XRD) analysis and scanning electron microscopy (SEM) were used for phase identification and investigating the morphology of the samples. According to charge/discharge diagrams, the sample calcined at 750 °C exhibited the highest initial discharge capacity of 254 mAh/g at current density of 25 mA/g. The highest cyclic stability was obtained at 750 °C so that the remained capacity after 50 cycles was about 97%. Impedance tests and Nyquist diagrams revealed that the lowest impedance is observed at 750 °C.