超声配位前驱体法合成锂离子电池正极材料LiMn2-xCrxO4

无机材料学报, 2006, 21(2): 415-419. doi: 10.3724/SP.J.1077.2006.00415

超声配位前驱体法合成锂离子电池正极材料LiMn_2-xCr_xO₄

Institute of Applied Chemistry, Xinjiang University, Urumqi 830046, China

Preparation of LiMn_2-xCr_xO₄ for Cathode Material of Lithium Ion Battery by Ultrasonic Coordination Precursor Method

SHEN Pei-Zhi , HUANG Yu-Dai , LIU Lang , JIA Dian-Zeng

采用超声配位前驱体法制备了锂离子电池正极材料LiMn_2-xCr_xO₄(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LiMn_2-xCr_xO₄(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.

The cathode material LiMn_2-xCr_xO₄(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 LiMn_2-xCr_xO₄(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.

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