Preparation of Li4Ti5O12 spherical particles for rechargeable lithium batteries

被引：38

作者：

Kanamura, K

Chiba, T

Dokko, K

机构：

[1] Tokyo Metropolitan Univ, Dept Appl Chem, Grad Sch Engn, Hachioji, Tokyo 1920397, Japan

[2] CREST, Japan Sci & Technol Agcy, Kawaguchi, Saitama 3320012, Japan

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2006年 / 26卷 / 4-5期

关键词：

batteries; sol-gel processes; spinels; Li4Ti5O12;

D O I：

10.1016/j.jeurceramsoc.2005.06.014

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Spherical Li4Ti5O12 particles were prepared via an emulsion-gel process. The preparation of spherical Li4Ti5O12 such as the concentrations of the starting materials and heat treatment were optimized. The particle size distribution of the Li4Ti5O12 prepared under optimized condition was very narrow, and the particle size was 0.45 mu m. It was found that a short heat treatment in an infrared furnace was useful to crystallize amorphous Li-Ti-O powders without aggregation of particles or morphology change. The obtained Li4Ti5O12 had the spinel structure, and was phase pure. The prepared Li4Ti5O12 exhibited a high discharge capacity of 160 mA h g(-1) at the potential of 1.5 V versus Li/Li+, and the charge-discharge cycle stability was excellent. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：577 / 581

页数：5

共 19 条

[1] PHASE AND DISPERSION STABILITY EFFECTS IN THE SYNTHESIS OF SILICA NANOPARTICLES IN A NONIONIC REVERSE MICROEMULSION [J].