Preparation and characteristic of carbon-coated Li4Ti5O12 anode material

被引：274

作者：

Wang, G. J. ^{[1
,2
]}

Gao, J. ^{[1
,2
]}

Fu, L. J. ^{[1
,2
]}

Zhao, N. H. ^{[1
,2
]}

Wu, Y. P. ^{[1
,2
,3
]}

Takamura, T. ^{[1
,2
]}

机构：

[1] Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China

[2] Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai, Peoples R China

[3] L&F Co Ltd, Taegu 704220, South Korea

来源：

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

关键词：

spinel Li4Ti5O12; surface modification; anode material; carbon-coating;

D O I：

10.1016/j.jpowsour.2007.06.107

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：

Carbon-coated spinel Li4Ti5O12 anode material was prepared by heat-treating the mixture of TiO2 (anatase), Li2CO3 and sugar. The products were characterized by X-ray diffraction, scanning electronic microscope and transmission electron microscope. A nanolayer of amorphous carbon was homogeneously coated on the surface of Li4Ti5O12 particles. Electrochemical results show that the carbon-coated Li4Ti5O12 displays larger diffusion coefficient of lithum ions, higher rate capability and excellent reversibility. Its reversible capacity is approximately 160 mAh g(-1) at the rate 0.1 C and good cycling behavior at different current density is achieved. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：1109 / 1112

页数：4

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