Fabrication of TiO2@carbon core–shell nanosheets for advanced lithium-ion batteries with excellent cyclability

Abstract

TiO₂@carbon with a nanosheet morphology and core–shell structure was constructed by self-assembly/carbonization of P123, CTAB and exfoliated titanate nanosheets. The obtained composite possesses an ultrathin structure (∼5.5 nm) and exhibits high capacity (549 mA h g⁻¹) and excellent cyclability (385 mA h g⁻¹ after 2000 cycles at 4.6 A g⁻¹) as an anode for Li-ion batteries.