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.
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收藏
页码：576 / 579
页数：4
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