The influence of used precursors on the properties of high-voltage cathode materials

This article deals with the influence of precursors used in the high-voltage cathode material LiNi 0.5 Mn 1.5 O 4 based on the LiMn 2 O 4 material on its properties. Precursors with various sizes of particles were used for making the cathode material. Consequently, its influence on the stability dur...

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Bibliographic Details
Published in:Journal of solid state electrochemistry 2015-03, Vol.19 (3), p.647-653
Main Authors: Kazda, T., Vondrák, J., Di Noto, V., Straková Fedorková, A., Sedlaříková, M., Čudek, P., Vyroubal, P.
Format: Article
Language:English
Subjects:
Analytical Chemistry
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Electrochemistry
Energy Storage
Original Paper
Physical Chemistry
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Summary:This article deals with the influence of precursors used in the high-voltage cathode material LiNi 0.5 Mn 1.5 O 4 based on the LiMn 2 O 4 material on its properties. Precursors with various sizes of particles were used for making the cathode material. Consequently, its influence on the stability during cycling, change of load, and the influence of higher temperatures during cycling were investigated. Produced materials were further analyzed to discover the influence of the change of the used precursor on the structure of the cathode material. The structure of the material deposited on Al foil was investigated by atomic force microscopy (AFM), and also X-ray photoelectron spectroscopy (XPS) analysis was performed. The materials were then observed by SEM and analyzed by the EDAX method. The results show that smaller particle size enhances the properties of cathode material both in the stability during cycling and higher capacity and also the potential under higher load.
ISSN:1432-8488
1433-0768
DOI:10.1007/s10008-014-2633-6