Electrochemical properties of sol-gel Li4/3Ti5/3O4

被引：122

作者：

Bach, S

Pereira-Ramos, JP

Baffier, N

机构：

[1] CNRS, UM 7582, F-94320 Thiais, France

[2] Ecole Natl Super Chim Paris, CNRS, URA 1466, F-75231 Paris, France

来源：

JOURNAL OF POWER SOURCES | 1999年 / 81卷

关键词：

electrochemical properties; sol-gel; Li4/3Ti5/3O4;

D O I：

10.1016/S0378-7753(98)00216-X

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 synthesis of a mixed lithium titanium spinel Li4/3Ti5/3O4 obtained via a sol-gel process in non aqueous media is reported. The electrochemical behaviour of the sol-gel Li4/3Ti5/3O4 spinel oxide is examined. A voltage plateau located at 1.55 V corresponds to the reversible insertion of 0.95 lithium ions in this compound while the structure is shown to be unchanged. The chemical diffusion coefficient of lithium has been evaluated by a.c. impedance: D-Li is found equal to 3 X 10(-12) cm(2) s(-1) for x = 0.2 in Li(4/3+0.2)Ti5/3O4. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：273 / 276

页数：4

共 19 条

[1] Electrochemical behavior of a lithium titanium spinel compound synthesized via a sol-gel process [J].