Synthesis and characterization of Li2MnSiO4/C nanocomposite cathode material for lithium ion batteries

被引：272

作者：

Li, Yi-Xiao

Gong, Zheng-Liang

Yang, Yong ^{[1
]}

机构：

[1] Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2007年 / 174卷 / 02期

基金：

中国国家自然科学基金;

关键词：

cathode materials; dilithium manganese silicates; lithium ion battery; nanocomposites; synthesis;

D O I：

10.1016/j.jpowsour.2007.06.126

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A high capacity LiMnSiO4/C nanocomposite cathode material with good rate performance for lithium ion batteries through a solution route has been successfully prepared. The material is able to deliver a reversible capacity of 209 mAh g(-1) in the first cycle, i.e. more than one electron exchange can be reversible cycled in the materials. The highly dispersion of nanocrystalline Li2MnSiO4 which was surround by a thin film of carbon was attributed to the cause of excellent performance of the materials. Ex situ XRD and IR results show that poor cycling behavior of Li2MnSiO4 might be due to an amorphization process of the materials. (C) 2007 Published by Elsevier B.V.

引用

收藏

页码：528 / 532

页数：5

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