Novel liquid lithium borates characterized with high lithium ion transference numbers

被引：21

作者：

Tao, R ^{[1
]}

Miyamoto, D ^{[1
]}

Aoki, T ^{[1
]}

Fujinami, T ^{[1
]}

机构：

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

来源：

JOURNAL OF POWER SOURCES | 2004年 / 135卷 / 1-2期

关键词：

electrolyte; ionic conductivity; lithium aluminate; lithium borate; lithium ion transference number; partial charge;

D O I：

10.1016/j.jpowsour.2004.04.002

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：

A series of lithium borates with two oligoether chains and two electron withdrawing groups directly bonded to the ate complex center were prepared. Ionic conductivity as high as 4.5 x 10(-5) S/cm was achieved at 30degreesC for Salt A(n = 7.2). Lithium borates exhibited much higher ionic conductivities than corresponding lithium aluminates, which was explained by the partial charges on oxygen atoms obtained from MOPAC calculation and by the results of fitting Vogel-Tammann-Fulcher (VTF) equation to conductivity data. Lithium borates also exhibited high lithium ion transference numbers (T+) and satisfactory electrochemical stabilities. They were considered as promising materials for lithium battery application. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：267 / 272

页数：6

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