Superb Li-Ion Storage of Sn-Based Anode Assisted by Conductive Hybrid Buffering Matrix.

ABSTRACT: Although Sn has been intensively studied as one of the most promising anode materials to replace commercialized graphite, its cycling and rate performances are still unsatisfactory owing to the insufficient control of its large volume change during cycling and poor electrochemical kinetics. Herein, we propose a Sn-TiO₂-C ternary composite as a promising anode material to overcome these limitations. The hybrid TiO₂-C matrix synthesized via two-step high-energy ball milling effectively regulated the irreversible lithiation/delithiation of the active Sn electrode and facilitated Li-ion diffusion. At the appropriate C concentration, Sn-TiO₂-C exhibited significantly enhanced cycling performance and rate capability compared with its counterparts (Sn-TiO₂

SUBMITTER: Shin J 

PROVIDER: S-EPMC10609529 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature