Novel bi-cation intercalated vanadium bronze nano-structures for stable and high capacity cathode materials

被引：18

作者：

Fei, Hai-Long

Shen, Zhu-Rui

Wang, Jin-Gui

Zhou, Hui-Jing

Ding, Da-Tong

Chen, Tie-Hong ^{[1
]}

机构：

[1] Nankai Univ, Coll Chem, Inst New Catalyt Mat Sci, Key Lab Energy Mat Chem Tianjin, Tianjin 300071, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 10期

基金：

美国国家科学基金会;

关键词：

Vanadium bronze; Bi-cation; Nano-architecture; Template-free; Positive electrode materials;

D O I：

10.1016/j.elecom.2008.07.043

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A new type of 3-D flower-like monoclinic sodium ammonium vanadium bronze ((NH4)(0.26)Na0.14V2O5) nano-architecture consisting of single crystalline nano-platelets was prepared. Under the hydrothermal condition, the intercalation of two kinds of cations (such as Na+ and NH4+) induced structural transformations of the vanadium bronzes and gave rise to novel crystalline structures with specific morphologies. When used as positive electrode materials in rechargeable lithium battery, this sodium ammonium vanadium bronze exhibited high discharge capacity of ca. 200 mA h g(-1) in the range of 2-3.4 V and excellent cycle stability. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1541 / 1544

页数：4

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