中文摘要：

采用溶胶凝胶一微波法制备LiFePO4／碳纳米管（CNT）复合正极材料．考察不同微波时间和CNT含量对其电化学性能的影响．并通过X射线衍射（XRD）和扫描电子显微镜（SEM）对样品的晶型结构和表面形貌进行表征．结果表明：掺CNT量为2％（质量分数）和微波18rain所得样品有较好的电化学性能；O．1C充放电的首次放电比容量为142mAh·g^-1，第10次循环的比容量为136mAh·g^-1．

英文摘要：

LiFePO4/carbon nanotube （CNT） composite cathode materials were synthesized by a sol-gel-microwave method. The effects of microwave time and CNT content on the electrochemical properties of LiFePO4/CNT were studied and the crystal structure and surface morphology were characterized by X-ray diffraction （XRD） and scanning electron microscopy （SEM）. The results show that the samples with better electrochemical performance are obtained when the CNT content in LiFePO4/CNT is 2% and the microwave time is 18 rain. When charge-discharge cycling at 0. 1 C, the initial specific discharge capacity is 142 mAh·g^-1 and the specific capacity at the 10th cycle is 136mAh·g^-1.