Preparation of rod-like CuSbS2 particles by soft-template synthesis and electrochemical performance toward lithium storage

Abstract

CuSbS₂ particles could be rapidly prepared by the microwave-assisted liquid phase method. Polyethylene glycol (PEG) was used as the directing agent for morphology and structure of CuSbS₂ particles. Microwave irradiation could induce Cu²⁺, adsorbed on PEG chain structure, to reduce as Cu⁺. In the further reaction, the rod-like structure of CuSbS₂ was formed. The results showed that the CuSbS₂ particles prepared by the PEG400 structure directing agent had a higher first discharge specific capacity (~1499.6 mAh g⁻¹) and excellent electronic and ionic conductivity. This method provides a new idea for the morphology control of anode materials for high energy density lithium batteries.