Enhancement of ionic conductivity by mixing lithium borate with lithium aluminate

被引：2

作者：

Tao, RY ^{[1
]}

Fujinami, T ^{[1
]}

机构：

[1] Shizuoka Univ, Fac Engn, Dept Mat Sci, Hamamatsu, Shizuoka 4328561, Japan

来源：

ELECTROCHIMICA ACTA | 2005年 / 50卷 / 10期

关键词：

lithium borate; lithium aluminate; mix-salt; ionic conductivity; discharge capacity;

D O I：

10.1016/j.electacta.2004.09.007

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Several lithium borates (Salt A and Salt B) and a lithium aluminate (Salt C) with electron-withdrawing groups, -OC6F5, -OCOCF3 or -N(SO2CF3)(2), and oligoether chains (-O(CH2CH2O)(n)CH3) directly bonded to the ate complex center, B or Al, were prepared. Lithium borate and lithium aluminate were mixed to get mix-salt electrolytes. Higher ionic conductivity was observed for the mix-salt than for the pure-salt. Conductivity as high as 1.1 X 10(-4) S/cm at ambient temperature (25degreesC) was achieved for the electrolyte in the optimized composition. The reason for such mixing effect on enhancement of ionic conductivity was discussed. Other electrochemical properties including electrochemical stability. compatibility with lithium anode and cyclic performance were also investigated for the mix-salt electrolytes. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1993 / 1999

页数：7

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