NMR study on the Li+ ion diffusion in LiCuO2 with layered structure

被引：13

作者：

Nakamura, K

Moriga, T

Sumi, A

Kashu, Y

Michihiro, Y

Nakabayashi, I

Kanashiro, T

机构：

[1] Univ Tokushima, Fac Engn, Dept Phys, Tokushima 7708506, Japan

[2] Univ Tokushima, Fac Engn, Dept Chem Sci & Technol, Tokushima 7708506, Japan

来源：

SOLID STATE IONICS | 2005年 / 176卷 / 7-8期

关键词：

LiCuO2; Li-NMR spectrum; lithium ion diffusion;

D O I：

10.1016/j.ssi.2004.11.004

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 temperature dependence of the Li-7-NMR line width of LiCuO2 was measured. The line widths were constant at low temperature, while a narrowing in the line widths was observed above 370 K. The results are explained by a model of thermally activated diffusion of Li+ ions. The activation energy for the Li+ ionic diffusion was estimated to be 0.23 eV in LiCuO2, being lower than that in LiCoO2. It indicates that the fast ionic diffusion occurs in LiCuO2. (C) 2004 Elsevier B.V. All rights reserved.

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页码：837 / 840

页数：4

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