The structure of a 3 V LixMnO cathode and its change upon electrochemical lithiation

被引：24

作者：

Levi, E ^{[1
]}

Zinigrad, E ^{[1
]}

Teller, H ^{[1
]}

Levi, MD ^{[1
]}

Aurbach, D ^{[1
]}

机构：

[1] Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1998年 / 145卷 / 10期

关键词：

D O I：

10.1149/1.1838824

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The crystal structure of Li0.33MnO2 obtained by heat-treatment of a gamma-MnO2 and LiNO3 mixture (Li/Mn ratio 1:3, 370 degrees C, 20 h), which is used as a 3 V cathode in rechargeable lithium batteries, is proposed as an ordered alternation of [1 x 2] and [1 x 1] channels. The simulation of this structure by the Rietveld method is in good agreement with the powder X-ray diffraction pattern of this material. It has been shown that the major difference between the structures of gamma-MnO2 and the thermal lithiated product is the ordering in the MnO6-octahedra arrangement. This leads to the high reversibility and cyclability of this cathode material in rechargeable Li batteries.

引用

页码：3440 / 3443

页数：4