Crystal chemical investigation of nano inclusion in LiMnO cathode material of lithium ion battery

In this study, LiMn 2 O 4 was fabricated with "Nano Inclusions" and the detailed crystal structure of the sample was studied by HAADF-STEM observation with an electron beam tilted to the specimen, electron diffraction, HRTEM observation. HAADF-STEM observation and electron diffraction reve...

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Bibliographic Details
Published in:RSC advances 2014-11, Vol.4 (14), p.59858-59861
Main Authors: Esaki, Shogo, Nishijima, Motoaki, Takai, Shigeomi, Yao, Takeshi
Format: Article
Language:English
Online Access:Get full text
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Summary:In this study, LiMn 2 O 4 was fabricated with "Nano Inclusions" and the detailed crystal structure of the sample was studied by HAADF-STEM observation with an electron beam tilted to the specimen, electron diffraction, HRTEM observation. HAADF-STEM observation and electron diffraction revealed that the "Nano Inclusions" were located within single LiMn 2 O 4 crystals. HRTEM observation clarified that the (100) plane of LiMn 2 O 4 and the (110) plane of ZnMn 2 O 4 have a common cubic close-packed oxygen arrangement and connect to each other without forming grain boundaries, due to similar atomic arrangements of LiMn 2 O 4 along the 〈100〉 direction and of ZnMn 2 O 4 along the [110] and [11&cmb.macr;0] direction. We found that the (100) plane of LiMn 2 O 4 and the (110) plane of ZnMn 2 O 4 connect without grain boundary.
ISSN:2046-2069
DOI:10.1039/c4ra09141h