Fe2O3nanoparticles coated on ferrocene-encapsulated single-walled carbon nanotubes as stable anode materials for long-term cycling

Abstract

Ferrocene-encapsulated single-walled carbon nanotubes (Fc@SWCNTs) uniformly coated with Fe₂O₃ (Fe₂O₃/Fc@SWCNTs) were synthesized and investigated as an anode material for lithium-ion batteries. The anode delivered a reversible capacity of ∼460 mA h g⁻¹ after more than 600 cycles, even when measured at 1300 mA g⁻¹, indicating the longest cycling performance for Fe₂O₃ anodes ever reported.