Facile synthesized nanorod structured vanadium pentoxide for high-rate lithium batteries

被引：316

作者：

Pan, Anqiang ^{[1
,2
]}

Zhang, Ji-Guang ^{[2
]}

Nie, Zimin ^{[2
]}

Cao, Guozhong ^{[3
]}

Arey, Bruce W. ^{[2
]}

Li, Guosheng ^{[2
]}

Liang, Shu-quan ^{[1
]}

Liu, Jun ^{[2
]}

机构：

[1] Cent S Univ, Dept Mat Sci & Engn, Changsha 410083, Peoples R China

[2] Pacific NW Natl Lab, Richland, WA 99352 USA

[3] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2010年 / 20卷 / 41期

基金：

中国国家自然科学基金;

关键词：

ION BATTERIES; CATHODE MATERIALS; ELECTROCHEMICAL PROPERTIES; V2O5; AEROGEL; INTERCALATION; PERFORMANCE; COMPOSITES; ELECTRODES; NANOTUBES; TEMPLATES;

D O I：

10.1039/c0jm01306d

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：

Nano-structured vanadium oxide (V(2)O(5)) is fabricated via a facile thermal-decomposition of vanadium precursor, vanadyl oxalate, which is produced by reacting micro-sized V(2)O(5) with oxalic acid. The V(2)O(5) nanoparticles produced by this method exhibit much better electrochemical performance than commercial micro-sized V(2)O(5). The optimized-nanorod electrodes give the best specific discharge capacities of 270 mAh g(-1) at C/2 (147 mA g(-1)) coupled with good cycle stability with only 0.32% fading per cycle. Even at a high rate of 4C (1176 mA g(-1)), the nanorod electrode still delivers 198 mAh g(-1). These results suggest that the well-separated V(2)O(5) nanorod is a good cathode material for high-rate lithium battery applications.

引用

页码：9193 / 9199

页数：7

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