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Synthesis and electrochemical performance of Fe2TiO5 nanoparticles as anode material for sodium-ion batteries
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DOI：10.1016/j.mtla.2026.102821.png)
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Abstract
En 中文
Developing high-performance anodes is pivotal for advancing the large-scale application of sodium-ion batteries (SIBs). Fe2TiO5 is regarded as a promising anode candidate for SIBs owing to its unique crystal structure and high theoretical capacity. However, its electrochemical behavior in SIBs remains unexplored. In this work, Fe2TiO5 nanoparticles are prepared via a facile sol-gel method, and their electrochemical performance is evaluated. Pure Fe2TiO5 material is obtained at calcination temperature over 700°C. The Fe2TiO5 calcined at 700°C has particle size in the range of 20-200 nm, and delivers a higher discharge capacity of 825.2 mAh g-1 and charge capacity of 243.0 mAh g-1 at 10 mA g-1. The charge capacity of Fe2TiO5 decreases with increasing the calcination temperature. Furthermore, the sodium storage mechanism of Fe2TiO5 is preliminarily explored, which involves conversion reactions. These findings demonstrate the feasibility of Fe2TiO5 as anode for sodium-ion batteries.
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