LITHIUM ION CONDUCTIVITY IN THE PEROVSKITE-TYPE LITAO3-SRTIO3 SOLID-SOLUTION

被引：72

作者：

INAGUMA, Y

MATSUI, Y

SHAN, YJ

ITOH, M

NAKAMURA, T

机构：

[1] Research Laboratory of Engineering Materials, Tokyo Institute of Technology, Midori-ku, Yokohama, 226

来源：

SOLID STATE IONICS | 1995年 / 79卷

关键词：

LITHIUM ION CONDUCTIVITY; PEROVSKITE STRUCTURE; STRONTIUM TITANATE; LITHIUM TITANATE; SOLID SOLUTION; PERCOLATION THEORY;

D O I：

10.1016/0167-2738(95)00036-6

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 lithium ion conductivity in the perovskite-type xLiTaO(3)-(1-x)SrTiO3 solid solution (0.30 less than or equal to x less than or equal to 0.50) has been investigated. The highest ionic conductivity of 5.5X10(-4) S cm(-1) at 300 K appears at x=0.50. The ion conductivity decreases with a decrease in x and then rapidly decreases in the vicinity of x=0.30. This threshold for the ion conductivity is the same as the site percolation threshold for a simple cubic lattice. This indicates that the lithium ion conduction occurs three-dimensionally among the A-sites of the perovskite.

引用

页码：91 / 97

页数：7

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