Lithium insertion and extraction of cobalt vanadium oxide

被引：8

作者：

Hibino, M ^{[1
]}

Ozawa, N ^{[1
]}

Murakami, T ^{[1
]}

Nakamura, M ^{[1
]}

Yao, T ^{[1
]}

机构：

[1] Kyoto Univ, Dept Fundamental Energy Sci, Grad Sch Energy Sci, Kyoto 6068501, Japan

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2005年 / 8卷 / 10期

关键词：

D O I：

10.1149/1.2008867

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

CoV3O8 possessing tunnel space along the c axis in the crystal structure was synthesized by a solid- state reaction and structurally analyzed by the Rietveld method. The electrochemical lithium insertion- extraction and cycle properties were investigated. After the first cycle, the sample showed reversible lithium insertion and good cycle performance. Such a cycle performance was explained by the quite small observed difference in unit cell volume between lithium insertion and extraction states. A free volume due to the tunnel space probably caused the small volume change. The tunnel space of CoV3O8 was concluded to be advantageous for lithium diffusion and discharge- charge cycle performance. (c) 2005 The Electrochemical Society.

引用

页码：A500 / A503

页数：4

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