Comparison of different methods for Li2MTi3O8 (M – Co, Cu, Zn) synthesis. Issue 4 (6th December 2021)

• Record Type: Journal Article
• Authors: Matsukevich, Iryna; Kulak, Anatoly; Palkhouskaya, Volga; Romanovski, Valentin; Jo, Jae Hyeon; Aniskevich, Yauhen; Mohamed, Saad Gomaa
• Is Part Of: Journal of chemical technology & biotechnology. Volume 97:Issue 4(2022)
• Page Start: 1021
• Page End: 1026
• Publication Date: 2021-12-06
• Subjects: lithium titanates -- electrode material -- Li‐ion battery -- sol–gel method -- self‐propagating high‐temperature synthesis -- spinel; Biotechnology -- Periodicals; Chemistry, Technical -- Periodicals; Chemical engineering -- Periodicals; Industries -- Environmental aspects -- Periodicals; 660
• DOI: 10.1002/jctb.6992
• Languages: English
• ISSNs: 0268-2575

Abstract

Abstract: BACKGROUND: Mesoporous powders of lithium titanates Li2 M Ti3 O8 ( M – Co, Cu, Zn) of spinel structure are promising as anode materials for Li‐ion batteries. RESULTS: Li2 M Ti3 O8 ( M – Co, Cu, Zn) were obtained by the sol–gel method, using self‐propagating high‐temperature synthesis (SHS) from glycine–citrate–nitrate mixtures, and also by the SHS method from aqueous solutions. The crystal structure, phase composition, microstructure and dispersion of the obtained materials were studied. CONCLUSION: It was established that the SHS method for the synthesis of lithium titanates has several advantages compared with the sol–gel method, including not requiring solvents, reduced aggregation of particles, a higher specific surface area and low bulk density of the obtained powders. The electrode obtained on the basis of Zn‐containing Li titanate by the SHS method from glycine–citrate–nitrate mixtures showed the highest charging capacity of 160 mAh g −1 and high cyclic stability. © 2021 Society of Chemical Industry (SCI).