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American Journal of Materials Research

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Microstructure and Properties of Lithium Ferrite in the Process of Its Formation

American Journal of Materials Research
Vol.4 , No. 3, Publication Date: Aug. 29, 2017, Page: 15-22

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Authors

[1]	Konstantin Zheleznikov, Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences, Ekaterinburg, Russia.
[2]	Elizaveta Shalaeva, Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences, Ekaterinburg, Russia.
[3]	Dina Kellerman, Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences, Ekaterinburg, Russia.

Abstract

LiFe₅O₈ has been synthesized by the self-propagating glycine-nitrate method. To clarify the stages of lithium ferrite phase formation, the structural, magnetic, and thermogravimetric studies have been carried out. The evolution of the magnetic properties indicated a transition from homogeneous distribution of iron ions in the carbon matrix to their clustering and subsequent crystallization of the magnetic lithium ferrite phase. The coexistence of α- and β- LiFe₅O₈ was found. The electrochemical tests showed a reduction of Fe³⁺ ions to metallic state during the lithiation process.

Keywords

LiFe₅O₈, Spinel, Glycine-Nitrate Method, Superparamagnetism, Microstructure, Anode

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