Mohan K. Bhattarai*, Shweta Shweta, Moses D. Ashie, Shivaraju Guddehalli Chandrappa*, Birendra Ale Magar, Bishnu P. Bastakoti, Ubaldo M. Córdova Figueroa, Ram S. Katiyar, Brad R. Weiner and Gerardo Morell,
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引用次数: 0
Abstract
Lithium-ion batteries (LIBs) serve as the backbone of modern technologies with ongoing efforts to enhance their performance and sustainability driving the exploration of new electrode materials. This study introduces a new type of alloy-conversion-based gallium ferrite (GFO: GaFeO3) as a potential anode material for Li-ion battery applications. The GFO was synthesized by a one-step mechanochemistry-assisted solid-state method. The powder X-ray diffraction analysis confirms the presence of an orthorhombic phase with the Pc21n space group. The photoelectron spectroscopy studies reveal the presence of Ga3+ and Fe3+ oxidation states of gallium and iron atoms in the GFO structure. The GFO was evaluated as an anode material for Li-ion battery applications, displaying a high discharge capacity of ∼887 mA h g–1 and retaining a stable capacity of ∼200 mA h g–1 over 450 cycles, with a Coulombic efficiency of 99.6 % at a current density of 100 mA g–1. Cyclic voltammetry studies confirm an alloy-conversion-based reaction mechanism in the GFO anode. Furthermore, density functional theory studies reveal the reaction mechanism during cycling and Li-ion diffusion pathways in the GFO anode. These results strongly suggest that the GFO could be an alternative anode material in LIBs.
ACS OmegaChemical Engineering-General Chemical Engineering
CiteScore
6.60
自引率
4.90%
发文量
3945
审稿时长
2.4 months
期刊介绍:
ACS Omega is an open-access global publication for scientific articles that describe new findings in chemistry and interfacing areas of science, without any perceived evaluation of immediate impact.