Facile synthesis of Li3V2(PO4)3/C cathode material for lithium-ion battery via freeze-drying

被引：5
|
作者：
Shuainan Guo [1 ]
Ying Bai [1 ]
Zhenfeng Geng [1 ]
Feng Wu [1 ,2 ]
Chuan Wu [1 ,2 ]
机构：
[1] Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science & Engineering, Beijing Institute of Technology
[2] Collaborative Innovation Center of Electric Vehicles in Beijing
来源：
Journal of Energy Chemistry | 2019年 / 32卷 / 05期
基金：
国家重点研发计划;
关键词：
Li3V2（PO4）3/C; Freeze-drying; Charge compensation; Lithium-ion battery;
D O I：
暂无
中图分类号：
TM912 [蓄电池];
学科分类号：
摘要：
In this work, we report a facile route for the synthesis of Li3V2(PO4)3/C cathode material via freezedrying and then calcination. The effect of calcination temperature on the electrochemical properties of the Li3V2(PO4)3/C is also investigated. When used as a lithium-ion battery cathode, the optimized Li3V2(PO4)3/C(LVP-800) through calcination at 800 °C exhibits a high initial charge and discharge capacity. The excellent electrochemical performance of LVP-800 is attributed to the good crystallinity and uniform morphology of the electrode material. In addition, the residual carbon can also improve the conductivity and buffer the volume expansion during the Li-ion extraction/reinsertion. Meanwhile, charge compensation also plays an important role in excellent electrochemical performance.
引用
收藏
页码：159 / 165
页数：7
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