Low-temperature synthesis of polypyrrole-coated LiV3O8 composite with enhanced electrochemical properties

被引：69

作者：

Chew, Sau Yen ^{[1
]}

Feng, Chuanqi

Ng, See How

Wang, Jiazhao

Guo, Zaiping

Liu, Huakun

机构：

[1] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2522, Australia

[2] Univ Wollongong, ARC Ctr Excellence Electromat Sci, Wollongong, NSW 2522, Australia

[3] Hubei Univ, Dept Chem & Chem Engn, Wuhan 430062, Peoples R China

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2007年 / 154卷 / 07期

关键词：

D O I：

10.1149/1.2734778

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A composite, LiV3O8-polypyrrole (PPy), was synthesized by a low-temperature solution route followed by an in situ polymerization method. The as-prepared powders consisted of nanosized PPy distributed homogeneously within the layered lithium trivanadate. The electrochemical properties of LiV3O8-PPy composite were systematically investigated and compared with bare lithium trivanadate. It was found that the electrochemical performance of the LiV3O8-PPy composite was significantly enhanced, with a specific capacity of similar to 183 mAh g(-1) retained after 100 cycles. This suggests that nanostructured PPy could work well as a polymer-conducting matrix and also as a binding material to improve the overall electrochemical properties of the LiV3O8 when used as a cathode material in lithium-ion batteries. (C) 2007 The Electrochemical Society.

引用

页码：A633 / A637

页数：5

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