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

页码：564 / 569

页数：6

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