DIFFUSION ENHANCEMENT IN LIXMN2O4

被引：45
|
作者：
CHEN, LQ
HUANG, XJ
KELDER, E
SCHOONMAN, J
机构：
[1] Laboratory for Inorganic Chemistry, Delft University of Technology, 2600 GA Delft
来源：
SOLID STATE IONICS | 1995年 / 76卷 / 1-2期
关键词：
LITHIUM BATTERY; MANGANESE OXIDE; LITHIUM MANGANESE OXIDE;
D O I：
10.1016/0167-2738(94)00223-F
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 electrochemical properties of LixMn2O4 with 0.5 less than or equal to x less than or equal to 2.5 as the lithium content in the starting materials, have been studied. A novel wet-chemical route has been developed. The lithium chemical diffusion coefficient in LixMn2O4 as synthesized by this wet-chemical technique is at least 10 times higher than that of LiMn2O4 obtained by solid state reaction. In the observed two-phase regions near x=0.75 and 1.75 diffusion enhancement ascribed to interfacial diffusion is observed. The results of cyclic voltammetry and impedance analysis provide additional evidence for this hypothesis.
引用
收藏
页码：91 / 96
页数：6
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