【作者】 周新文； 张季平； 刘浩文； 郭光辉； 雷太鸣； 张克立；

【Author】 Zhou Xinwen Zhang Jiping Liu Haowen Guo Guanghui Lei Taiming Zhang Keli(College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072 Centre of Nanoscience and Nanotechnology Research, Wuhan University, Wuhan 430072)

【机构】 武汉大学化学与分子科学学院；

【摘要】 采用流变相反应合成出了新型锂离子电池正极材料LiFePO4/C。与传统固相法相比,流变相反应合成温度低、反应时间短。采用XRD、元素分析、SEM等方法对材料进行表征。电化学测试表明,10mA/g时材料首次放电容量为121 mAh/g,10 次循环之后容量达133 mAh/g,同时表现出较好的高倍率性能,100mA/g时,材料首次放电容量超过100 mAh/g.更多还原

【Abstract】 A new cathode material LiFePO4/C for lithium ion batteries was synthesized by rheological phase reaction. It needs a lower reaction temperature and much less reaction time comparing to the solid state reaction. The LiFePO4/C was charactered by XRD、Element Analysis and SEM. The first discharge capacity of the LiFePO4/C is 121mAh/g at 10mA/g at room temperature. After 10 cycles, the discharge capacity is 133 mAh/g. The material exhibited good electrical properties at a high current density. when the current density is 100 mA/g, the discharge capacity is over 100 mAh/g.更多还原