A porous vanadium pentoxide nanomaterial as cathode material for rechargeable lithium batteries

被引：37

作者：

Yu, J. J. ^{[1
]}

Yang, J. ^{[1
]}

Nie, W. B. ^{[1
]}

Li, Z. H. ^{[1
]}

Liu, E. H. ^{[1
]}

Lei, G. T. ^{[1
]}

Xiao, Q. Z. ^{[1
]}

机构：

[1] Xiangtan Univ, Coll Chem, Minist Educ, Key Lab Environm Friendly Chem & Applicat, Xiangtan 411105, Hunan Province, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2013年 / 89卷

关键词：

Electrospinning; Template; Vanadium oxide; Lithium batteries; HIGH-PERFORMANCE; ELECTROCHEMICAL PROPERTIES; ENERGY-CONVERSION; LI-INSERTION; V2O5; MICROSPHERES; CHALLENGES; ELECTRODES; ANODE;

D O I：

10.1016/j.electacta.2012.11.032

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A porous vanadium pentoxide (V2O5) nanomaterial was prepared by using the electrospun PMMA fibers as a template, which could be removed by annealing at high temperature leaving tube-like pores with 1 mu m in diameter. It is composed of numerous rice-like nanoparticles in 50-100 nm size. In the potential range of 4.0-2.0 V (vs. Li/Li+), it can deliver a high reversible capacity of 283 mAh g(-1) at 0.2C rate and exhibits an excellent rate capability (104 mAh g(-1) at 12C rate). Even cycled at the 4C rate, the discharge capacity still remains 85% of the initial one over 300 cycles, showing an excellent cycling performance. The results suggest the obtained V2O5 nanomaterial could develop into a promising cathode material for rechargeable lithium batteries. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：292 / 299

页数：8

共 43 条

[1] Nanostructured materials for advanced energy conversion and storage devices [J].