Comparative analysis of the methods of producing lithium titanates
https://doi.org/10.29235/1561-8323-2020-64-1-42-49
Abstract
Anodic materials with spinel structure Li2MTi3O8 (M - divalent metal) are promising for storing electricity from renewable energy sources, for portable electronics and electric vehicles. In this work, mesoporous lithium titanates Li2MTi3O8 (M - Co, Cu, Zn) powders with spinel structure were prepared by the method of self-propagating high-temperature synthesis (SHS) from the glycine-citrate-nitrate mixtures and, for comparison, by the sol-gel method. Their crystal structure, phase composition, thermal stability, microstructure and dispersion were studied. It was established that the SHS method of preparation of lithium titanates has several advantages over the sol-gel method because there is no need to use any solvents; it is possible to reduce particle aggregation, to increase specific surface and to reduce bulk density of the obtained powders.
Keywords
anode materials,
lithium-ion current sources,
sol-gel method,
self-propagating high-temperature synthesis,
spinel
Supporting agencies: The authors are very grateful to T. F. Kuznetsova for assistance in investigating the adsorption properties. The work was done within the framework of the International Belarus-Egypt Project of the Fundamental Research of the National Academy of Sciences of Belarus “Developing the Nanostructure Materials for High-Performance Systems of Energy Storage”
About the Authors
I. V. Matsukevich
Institute of General and Inorganic Chemistry, National Academy of Sciences of Belarus
Belarus
Belarus
Matsukevich Irina V. - Ph. D. (Chemistry), Head of the Laboratory.
9/1, Surganov Str., 220072, Minsk
A. I. Kulak
Institute of General and Inorganic Chemistry, National Academy of Sciences of Belarus
Belarus
Belarus
Kulak Anatoly I. - Correspondent Member, D. Sc. (Chemistry), Professor, Director.
9/1, Surganov Str., 220072, Minsk
O. V. Polhovskaya
Institute of General and Inorganic Chemistry, National Academy of Sciences of Belarus
Belarus
Belarus
Polhovskya Olga V. - Junior researcher.
9/1, Surganov Str., 220072, Minsk
D. A. Kiiliomin
Institute of General and Inorganic Chemistry, National Academy of Sciences of Belarus
Belarus
Belarus
Kuliomin Denis A. - Junior researcher.
9/1, Surganov Str., 220072, Minsk
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