Rational design of Sn-based multicomponent anodes for high performance lithium-ion batteries: SnO2@TiO2@reduced graphene oxide nanotubes

Abstract

Ultra thin TiO₂ layer (2 nm)-coated SnO₂ nanotubes (NTs) wrapped by reduced graphene oxide (rGO) sheets (SnO₂@TiO₂@rGO) were synthesized as high capacity anode materials for lithium-ion batteries. The rationally designed anodes exhibited superior rate capability while maintaining a high discharge capacity of over 840 mA h g⁻¹ at a current density of 500 mA g⁻¹ after 50 cycles.