Chemical diffusion coefficients of lithium in LiM(y)Mn(2-y)O(4) (M=Co and Cr)

被引：66

作者：

Wakihara, M

Li, GH

Ikuta, H

Uchida, T

机构：

[1] Department of Chemical Engineering, Tokyo Institute of Technology, Tokyo 152, Ookayama, Meguro-ku

来源：

SOLID STATE IONICS | 1996年 / 86-8卷

关键词：

chemical diffusion coefficient of lithium; LiM(y)Mn(2-y)O(4) spinel;

D O I：

10.1016/0167-2738(96)00213-5

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：

Chemical diffusion coefficients of lithium ions for LiMn2O4 and LiM(y)Mn(2-y)O(4) (M = Co and Cr) were measured using the current pulse relaxation technique at room temperature. The (D) over tilde values for LiMn2O4 were between 10(-9) and 10(-10) cm(2) . s(-1), while those for LiM(y)Mn(2-y)O(4) were at least one order of magnitude larger than those of the original LiMn2O4. An order-disorder phase transition near x = 0.5 for Li(x)M(y)Mn(2-y)O(4) seems to accelerate the diffusion of lithium ions in the spinel structure.

引用

页码：907 / 909

页数：3

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