In-situ generation of Li2FeSiO4/C nanocomposite as cathode material for lithium ion battery

被引：28
|
作者：
Yi, Jin [1 ,2 ]
Hou, Meng-yan [1 ,2 ]
Bao, Hong-liang [3 ]
Wang, Cong-xiao [1 ,2 ]
Wang, Jian-qiang [3 ]
Xia, Yong-yao [1 ,2 ]
机构：
[1] Fudan Univ, Inst New Energy, Dept Chem, Shanghai 200433, Peoples R China
[2] Fudan Univ, Inst New Energy, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China
[3] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2014年 / 133卷
基金：
中国国家自然科学基金;
关键词：
Li2FeSiO4; Polyanionic; Cathode material; Lithium-ion battery; Carbon coating;
D O I：
10.1016/j.electacta.2014.03.164
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
A Li2FeSiO4/C nanocomposite is prepared via solvothermal method in combination with carbon coating technology. The as-prepared L nanocomposite is a single phase Li2FeSiO4 with nano-tickness coated carbon layer and connected by the mutual cross-linked carbon conductive matrix. As cathode material for lithium ion battery, the composite delivers a discharge capacity of 154 mAh g(-1) at 1 C and exhibits good rate capability with a discharge capacity of 106 mAh g(-1) at the rate of 10 C, which is ascribed to the small particle size and enhanced electronic conductivity using carbon coating technology. The asprepared Li2FeSiO4/C nanocomposite also behaves a good cycling stability with capacity retention of over 100 cycles. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：564 / 569
页数：6
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