无机化学学报

富锂掺杂Li_1.06Co_0.05Cr_{0.1Mn_1.85O₄的合成及电化学性能研究}

Synthesis and Characterization of Lithium-rich Li_1.06Co_0.05Cr_{0.1Mn_1.85O₄ Powders}

作者	单位
高媛	四川大学化学学院，成都 610064
赖琼钰	四川大学化学学院，成都 610064
韦旎妮	四川大学化学学院，成都 610064
胡向贵	四川大学化学学院，成都 610064
卢集政	四川大学化学学院，成都 610064
李月峰	四川大学化学学院，成都 610064

摘要:

关键词: 锂离子电池 Li_1.06Co_0.05Cr_{0.1Mn_1.85O₄} 硝尿配合物掺杂电化学性能

基金项目:

Abstract: Li_1.06Co_0.05Cr_{0.1Mn_1.85O₄ powders were prepared by heating metal-urea nitrate complexes precursors. The influence of synthesis conditions on the structural and electrochemical properties of Li_1.06Co_0.05Cr_{0.1Mn_1.85O₄ was investigated by X-ray diffraction, scanning electron microscopy and charge-discharge experiments. The powders were well crystallized and with a narrow particle size distribution and regular morphology about 60 nm. Electrochemical performances indicated that Li_1.06Co_0.05Cr_{0.1Mn_1.85O₄ delivered a high capacity of 191 mAh·g^-1 at 14^th cycle due to additional 3 V (vs Li) plateau, 145 mAh·g^-1 at 22^st cycle. The results show that there are two pairs of voltammetric wave (centered at 4 V (vs Li)) and a pairs of voltammetric wave (centered at 3 V (vs Li)), indicating an excellent reversibility.}}}

Keywords: Li-ion battery spinal Li_1.06Co_0.05Cr_{0.1Mn_1.85O₄} metal-urea nitrate complexes doping electrochemical performance

投稿时间：2004-11-15 修订日期：2005-01-30

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高媛,赖琼钰,韦旎妮,胡向贵,卢集政,李月峰.富锂掺杂Li_1.06Co_0.05Cr_{0.1Mn_1.85O₄的合成及电化学性能研究[J].无机化学学报,2005,21(5):778-782.}

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