Reinvestigation of Li2MnO3 Structure: Electron Diffraction and High Resolution TEM

被引：212
作者：
Boulineau, A. [1 ,2 ]
Croguennec, L. [1 ,2 ]
Delmas, C. [1 ,2 ]
Weill, F. [1 ,2 ,3 ]
机构：
[1] ICMCB, CNRS, F-33608 Pessac, France
[2] Univ Bordeaux, ENSCPB, ICMCB, F-33608 Pessac, France
[3] Univ Bordeaux, CREMEM, F-33405 Talence, France
来源：
CHEMISTRY OF MATERIALS | 2009年 / 21卷 / 18期
关键词：
LITHIUM-ION BATTERIES; SOLID-STATE CHEMISTRY; HIGH-ENERGY DENSITY; INSERTION MATERIAL; LICO1/3NI1/3MN1/3O2; LICOO2; ELECTROCHEMISTRY; CRYSTAL; OXIDES; NMR;
D O I：
10.1021/cm900998n
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 structure of Li2MnO3 was investigated by the means of X-ray and electron diffraction as well as high resolution transmission electron microscopy experiments. Extra spots are present in the Li2MnO3 electron diffraction patterns, and their origin is fully understood and explained here. They result from the existence of diffuse scattering lines observed along the c* monoclinic axis, intercepted by the Ewald's sphere, and not from double diffraction phenomenon nor from superstructure. Furthermore, the origin of these scattering lines is due to stacking faults of the ordered lithium/manganese layers along the c-axis that were observed in images obtained using high resolution transmission electron microscopy.
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收藏
页码：4216 / 4222
页数：7
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