Spray-drying technology for the synthesis of nanosized LiMn2O4 cathode material

被引：20

作者：

Tu, J. P. ^{[1
]}

Wu, H. M.

Yang, Y. Z.

Zhang, W. K.

机构：

[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China

[2] Zhejiang Univ Technol, Dept Appl Chem, Hangzhou 310032, Peoples R China

来源：

MATERIALS LETTERS | 2007年 / 61卷 / 03期

关键词：

nanosized LiMn2O4; spray-drying method; lithium ion batteries; electrochemical characteristics;

D O I：

10.1016/j.matlet.2006.06.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Spinel LiMn2O4 cathode material has been synthesized by a spray-drying method for lithium ion batteries. During the entire process, the as-prepared powders were characterized using TGA/DTA, XRD, FTIR, SEM and TEM. The results showed that this method not only reduces the sintering time to 5 h at 750 degrees C, but also decreases the average particle size of LiMn2O4 powders to the order of nanometers. The electrochemical performance of nanosized LiMn2O4 was investigated by the galvanostatic charge-discharge tests. The data indicate that the natiosized LiMn2O4 has a specific capacity of about 130 mA h g(-1) (1/5 C), and at higher rate (1 C), still has good cycling stability. (c) 2006 Elsevier B.V All rights reserved.

引用

页码：864 / 867

页数：4

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