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超声配位前驱体法合成锂离子电池正极材料LiMn2-xCrxO4
Preparation of LiMn2-xCrxO4 for Cathode Material of Lithium Ion Battery by Ultrasonic Coordination Precursor Method
【摘要】 采用超声配位前驱体法制备了锂离子电池正极材料LiMn2-xCrxO4(0≤x≤0.1).利用 X射线衍射仪(XRD)、扫描电子显微镜(SEM)、循环伏安(CV)和充放电测试对样品进行了表征.结果表明,用该方法合成的LiMn2-xCrxO4(0≤x≤0.1)样品形貌规整,具有较高的放电容量和较好的循环性能,同时该方法的提出开辟了锂离子电池正极材料制备的新途径.
【Abstract】 The cathode material LiMn2-xCrxO4 (0≤x≤0.1)was prepared by the ultrasonic coordination precursor method. The synthesized materials were characterized by X-ray diffraction, scanning electron microscope, cyclic voltammetry and charge-discharge testing. The results show that the LiMn2-xCrxO4(0≤x≤0.1) powders have prefect surface morphology, highly discharge capacities and better cycle performance. In addition, the method can be employed to synthesize cathode material for lithium-ion battery as a new route.
【关键词】 超声配位前驱体;
掺杂;
锂离子电池;
LiMn2-xCrxO4;
【Key words】 ultrasonic coordination precursor; substitution; lithium-ion battery; LiMn2-xCrxO4;
【Key words】 ultrasonic coordination precursor; substitution; lithium-ion battery; LiMn2-xCrxO4;
【基金】 国家自然科学基金(20366005,20462007)新疆大学青年教师科研启动基金(QN040106)
- 【文献出处】 无机材料学报 ,Journal of Inorganic Materials , 编辑部邮箱 ,2006年02期
- 【分类号】TM911
- 【被引频次】3
- 【下载频次】199