STRUCTURE AND LITHIUM INSERTION CHARACTERISTICS OF LICRMNO4

被引：22

作者：

KANO, S

SATO, M

机构：

[1] Department of Chemistry and Chemical Engineering, Faculty of Engineering, Niigata University, Niigata

来源：

SOLID STATE IONICS | 1995年 / 79卷

关键词：

LITHIUM INTERCALATION; JAHN-TELLER EFFECT; RIETVELD ANALYSIS; SPINEL TYPE; STRUCTURAL DETERMINATION;

D O I：

10.1016/0167-2738(95)00064-D

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：

A spinel-type LiCrMnO4 compound was synthesized and its chemical and electrochemical lithium intercalation reactions were studied. The content of inserted lithium ions by chemical lithiation using n-butyllithium was ca. 1 mol per unit formula. The powder X-ray diffraction patterns of the intercalated product showed an apparent structural change. The crystal symmetry changed from cubic to tetragonal, accompanied by lithium intercalation. It was found from the Rietveld refinement of the intercalated product that this lowering in the symmetry occurs due to the Jahn-Teller effect of Mn3+ ions produced with intercalation.

引用

页码：215 / 219

页数：5

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