【摘要】 以碳酸锂、五氧化二钒和硝酸铜为原料,通过球磨混合结合高温固相法成功制备锂离子电池新型负极材料LiCuVO₄。热重分析法（TG）、X射线衍射光谱法（XRD）、扫描电子显微镜法（SEM）和电化学测试方法对合成材料进行了研究。结果表明所制备LiCuVO₄负极材料主要由微米尺寸的块状颗粒组成。在0.01³.0 V充放电区间内,在50 m A/g进行充放电,所制备的材料首次充电比容量达到425.2 m Ah/g,循环50次后充电比容量仍保持在370.8 m Ah/g。在1 A/g电流密度下,循环50次后,充电比容量仍高达288.6 m Ah/g。更多还原

【Abstract】 The LiCuVO₄ anode material was synthesized by typical solid state method. The structure,morphology and electrochemical performances of LiCuVO₄ were characterized by thermogravimetry（TG）, X-ray diffraction（XRD）,scanning electron microscopy（SEM） and electrochemical tests. The results show that the material is composed of micro-sized bulk particles. This material can deliver a high initial charge specific capacity of 425.2 m Ah/g at the current of 50 m A/g and at 0.01-3.0 V. After 50 cycles,the charge specific capacity can retain 370.8 m Ah/g. At the high current of 1 A/g,the LiCuVO₄ delivers a high charge specific capacity of 288.6 m Ah/g after 50 cycles.更多还原