Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

您目前所在的位置:首页 - 期刊简介 - 详细页面

中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 13    No. 5    October 2003

[PDF Download]    [Flash Online]    

    

Effect of Cr doping on structure of LiMnO2
GU Yi-jie(谷亦杰), ZHOU Heng-hui(周恒辉),
CHEN Ji-tao(陈继涛), CHANG Wen-bao(常文保)

College of Chemistry and Molecular Engineering,
Peking University, Beijing 100871,China

Abstract:The monoclinic and orthorhombic ordered-rocksalt polymorphs of LiMnO↓2 are of interest as high-capacity cathode materials for rechargeable Li batteries. LiMnO2 and LiMn1-xCrxO2 were prepared by a high temperature solid-state route. In comparison with undoping Cr orthorhombic LiMnO2, monoclinic LiMnO2 was preserved with Cr doping. The volume of m-LiMnO2 decreasing with increasing Cr confirms that the length of bond around Cr ion decreases with Mn substituted by Cr ion. A phase transformation mechanism was proposed for understanding the structure relationship between the LiMnO2 and chromium-substituted LiMnO2 oxides.

 

Key words: LiMnO2; Cr doping; phase transformation mechanism

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

主管:中国科学技术协会 主办:中国有色金属学会 承办:中南大学
湘ICP备09001153号 版权所有:《中国有色金属学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市岳麓山中南大学内 邮编:410083
电 话:0731-88876765,88877197,88830410   传真:0731-88877197   电子邮箱:f_ysxb@163.com