Novel nanosized sulfur-containing composite cathode materials were synthesized by heating the mixture of sublimed sulfur and multi-walled carbon nanotubes(MWNTs)in certain conditions.The structure and morphology of the composite cathode materials were determined by scanning electron microscopy.The electrochemical performances of the MWNTs-sulfur composite(MSC)were characterized by charge-discharge characteristic,cyclic voltammetry and electrochemical impedance spectroscopy.The results indicate that the MSC exhibits a good rate capability,a satisfactory capacity,and acceptable cycle-life characteristics.The specific capacity was more than 700 mAh/g for the first discharge,and remained at 464 mAh/g,just 34% less after 60 cycles at room temperature.