以磷酸铁、碳酸锂和葡萄糖为原料,钛酸酯偶联剂TC-Wt作分散剂及杂源,采用高温固相合成制备磷酸铁锂碳包覆复合材料,考察偶联剂的加入对目标化合物的物理性能及电化学性能的影响.通过XRD、SEM及粒度分布等测试技术对所合成的材料进行了表征,并对所得材料进行对比分析,结果表明:添加偶联剂所制得材料颗粒分散效果良好,粒径分布相对均一,同时材料表现良好的电化学性能,在0.1C、0.5C、1C、3C下的首次放电比容量分别为161.8mAh·g-1、148.6 mAh·g-1、136.0 mAh·g-1、112.1 mAh·g-1,比未添加偶联剂制得的材料在相应倍率下所得放电比容量分别高出13.2 mAh·g-1、16.3 mAh·g-1、9.6 mAh·g-1、1.6 mAh·g-1.此外,该材料表现出良好的循环性能,不同倍率循环10次后,比容量仍保持良好.
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