One-Step Hydrothermal Synthesis of SnO₂@Carbon Composites with Super Lithium Ions Storage Performances.

Tin oxide (SnO₂) based anode materials for lithium ion batteries (LIBs) have drawn much attention for their high theoretical capacity and energy density, but suffer from a large volume change and resulting a rapid capacity fading during charging/discharging cycles. To optimize the status, herein, SnO₂/carbon composites are synthesized using SnCl₄ · 5H₂O and glucose with different mass ratio as raw materials via a simple one-step hydrothermal process, following calcination under Ar gas atmosphere. As comparison, pure SnO₂ is synthesized as the same as SnO₂/carbon composites without glucose and calcination in air.