Hollow microspheres of V2O5 and Cu-doped V2O5 as cathode materials for lithium-ion batteries

被引：49

作者：

Zhu, D. ^{[1
]}

Liu, H. ^{[1
]}

Lv, L. ^{[1
]}

Yao, Y. D. ^{[1
]}

Yang, W. Z. ^{[1
]}

机构：

[1] Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610064, Peoples R China

来源：

SCRIPTA MATERIALIA | 2008年 / 59卷 / 06期

基金：

中国国家自然科学基金;

关键词：

V2O5 hollow microspheres; nanocrystalline materials; copper; lithium battery; electrode;

D O I：

10.1016/j.scriptamat.2008.05.020

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Highly crystallized V2O5 hollow microspheres were prepared by a self-assembly method and successfully doped with Cu. X-ray diffraction, Fourier-transform infrared spectrometry, scanning electron microscopy, transmission electron microscopy, cyclic voltammetry and galvanostatic cell cycling were employed to characterize the samples. The V2O5 hollow microspheres had a high capacity of 319 mAh g(-1) in the potential region 4.0-2.0 V. The Cu-doped V2O5 microspheres exhibited better cycling performance due to their stabilized structure and increased conductivity. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：642 / 645

页数：4

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