采用微波热复合法合成Se/C复合正极材料,并用XRD、SEM和电化学等测试手段对样品进行表征。研究表明:该正极材料具有良好的循环性能和倍率性能。在1C倍率下经过100次充放电循环放电比容量依然达到160mAh/g。科琴黑的高导电性降低了正极的阻抗,并有效的抑制了穿梭效应。 Se / C composite cathode materials were synthesized by microwave thermal composites. The samples were characterized by XRD, SEM and electrochemical measurements. The results show that: the cathode material has good cycle performance and rate performance. At 1C rate after 100 cycles of charge and discharge cycle discharge capacity is still up to 160mAh / g. The high conductivity of Ketjen Black reduces the impedance of the positive electrode and effectively inhibits the shuttle effect.