Electrochemical Behavior of Nanostructured ε-VOPO4 over Two Redox Plateaus

被引：35

作者：

Chen, Zehua ^{[1
,2
]}

Chen, Qiyuan ^{[1
]}

Chen, Liquan ^{[1
]}

Zhang, Ruibo ^{[2
]}

Zhou, Hui ^{[2
]}

Chernova, Natasha A. ^{[2
]}

Whittingham, M. Stanley ^{[2
]}

机构：

[1] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China

[2] SUNY Binghamton, Dept Chem & Mat Sci, Binghamton, NY 13902 USA

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2013年 / 160卷 / 10期

关键词：

LITHIUM-ION BATTERIES; CATHODE MATERIALS; CRYSTAL-STRUCTURE; LIVOPO4;

D O I：

10.1149/2.064310jes

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nanostructured epsilon-VOPO4 particles, synthesized by the thermal decomposition of H2VOPO4 have a diameter of 150 nm and a length up to 100 nm. Nanostructuring the material allows access to both the 4 V and 2.5 V redox potentials with an overall capacity approaching 200 mAh/g over 50 cycles. The structure of the epsilon-VOPO4 and its changes were investigated by X-ray diffraction and electron microscopy, and its electrochemical behavior through constant current cycling and cyclic voltammetry. (C) 2013 The Electrochemical Society. All rights reserved.

引用

页码：A1777 / A1780

页数：4

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