【作者】 麦立强； 陈文； 祁琰媛； 金伟；

【Author】 MAI Li-qiang, CHEN Wen, QI Yan-yuan, JIN Wei (School of Materials Science and Engineering, Wuhan University of Technology , Wuhan 430070, China)

【机构】 武汉理工大学材料科学与工程学院；

【摘要】 橄榄石型LiFePO4正极材料是极有应用潜力的锂离子电池正极材料。采用流变相自组装法合成LiFePO4纳米棒正极材料,并通过XRD、TEM、FTIR、TGA/DSC、循环伏安等手段测试产物的结构和性能。研究结果表明,合成的LiFePO4纳米棒长为50-100nm,直径为20-50 nm,沿一定的方向规则排列,因而该材料具有较好的导电性能和可逆的离子嵌入/脱出特性。更多还原

【Abstract】 Olivine-structured LiFePO4 is promising for active cathode materials of lithium batteries. LiFePO4 nano-rods were synthesized using a rheological reaction followed by a self-assembling process, and characterized by XRD, TEM, FTIR, TGA/DSC, cyclic voltammogram, etc. The results show that the LiFePO4 nanorods with length of 50 - 100 nm and nanorod diameter of 20 - 50 nm are grown orderly with certain direction, resulting in better conductivity and insertion/extraction reversibility of Li+.更多还原