Exfoliated Graphite Nanosheets Coating on Nano-grained SnO₂/Li₄Ti₅O₁₂ as a High-Performance Anode Material for...

The SnO₂/Li₄Ti₅O₁₂/C compound was gained via hydrothermal, sintering, and ball milling methods. Nano-grained SnO₂/Li₄Ti₅O₁₂ are homogeneously wrapped in a sheet-like graphite. Li₄Ti₅O₁₂ possesses cyclic stability and superior rate capacity. Meanwhile, the SnO₂/Li₄Ti₅O₁₂ hybrid can supply abundant active sites for absorption of Li⁺, mitigate chemical stress in cycling, and prevent the ultrathin graphite nanosheets from stacking. Besides, the sheet-like graphite could reduce volume variation in cycling and reduce transmission distance for the electron or Li⁺. Therefore, an outstanding electrochemical property of the SnO₂/Li₄Ti₅O₁₂/C composite can be obtained.