STRUCTURE AND LITHIATION MECHANISM OF THE SPINEL, LICUVO4

被引：14

作者：

KANNO, R ^{[1
]}

KAWAMOTO, Y ^{[1
]}

TAKEDA, Y ^{[1
]}

HASEGAWA, M ^{[1
]}

YAMAMOTO, O ^{[1
]}

机构：

[1] MIE UNIV,FAC ENGN,DEPT CHEM,TSU,MIE 514,JAPAN

来源：

SOLID STATE IONICS | 1990年 / 40-1卷

关键词：

D O I：

10.1016/0167-2738(90)90074-2

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：

The structure of lithium copper vanadate, LiCuVO4, was determined by X-ray Rietveld analysis and its electrochemical properties were examined. The distortion of the CuO6 octahedra is appreciably large and is induced by the Jahn-Teller instability of Cu2+ ions. The CuO6 octahedra connected one dimensionally by sharing opposite O-O edges such that the elongated axis ordered ferrodistortive way. The charge-discharge properties of the Li/LiCuVO4 cells were examined. The spinel transformed to a new phase, Li2.5Cu0.5VO4, with lithiation, and the new phase was lithiated reversibly by the electrochemical displacement reaction between the lithium and the copper ions. © 1990.

引用

页码：576 / 579

页数：4

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