Porous Li4Ti5O12 Coated with N-Doped Carbon from Ionic Liquids for Li-Ion Batteries

被引：756

作者：

Zhao, Liang ^{[1
]}

Hu, Yong-Sheng ^{[1
]}

Li, Hong ^{[1
]}

Wang, Zhaoxiang ^{[1
]}

Chen, Liquan ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

来源：

ADVANCED MATERIALS | 2011年 / 23卷 / 11期

关键词：

RECHARGEABLE LITHIUM BATTERIES; ELECTRODE PERFORMANCE; SPINEL; ELECTROACTIVITY; LI4+XTI5O12; CAPABILITY; DIFFUSION; INSERTION; LIFEPO4; CELLS;

D O I：

10.1002/adma.201003294

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A uniform nitrogen-doped carbon coating layer is formed on Li4Ti5O12 particles by mixing porous Li4Ti5O12 powder with an ionic liquid and then treating the mixture at moderate temperature. Uniformly coated Li4Ti5O12 is shown to have significantly improved rate capability and cycling performance for Li-ion batteries. This relatively simple approach is versatile and can be extended to modify other electrode materials for electrochemical devices.

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页码：1385 / 1388

页数：4

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