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The new lithium rich cathode Li1.13[Ni0.2Co0.2Mn0.47]O2 powders are synthesized by novel solid-state method,which adopts the acetate precursors compounded thoroughly on the alcohol solvent.Morphology of the Li-rich NCM (also noted as 0.4Li[Li1/3Mn2/3]O2·0.6Li[Ni1/3Co1/3Mn1/3]O2) investigated by SEM shows homogeneous primary particles in good distribution size (80-250 nm) with small aggregates.The initial reversible capacity can be achieved as high as 218.2 mAh g-1 at 0.1 C with good capacity retention after 50 cycles.In order to further understand the electrochemical process of this cathode material during charge-discharge cycling,cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) are employed to investigate electrochemical parameters like lithium ion diffusion coefficient DLi and charge transfer resistance Rct to confirm the good capacity performance.This cathode has showed great advantages on high capacity and good capacity retention.