In situ formation of MoS2/C nanocomposite as an anode for high-performance lithium-ion batteries

Abstract

Anode materials with excellent electrochemical properties as an alternative to carbon-based structures are suggested for advanced high-performance lithium-ion batteries. Here, composites containing MoS₂ and carbon (MoS₂/C) were in situ synthesized via heat treatment at 700 °C under a CH₄ atmosphere with varying reaction times. XRD, Raman, XPS, and TEM data show that the MoS₂/C composites consist of crystalline MoS₂ and an amorphous carbon phase and show a homogeneous distribution of curved and bent MoS₂ particles with a carbon matrix. In particular, the MoS₂/C composite with an optimal content of the amorphous carbon phase exhibits relatively an excellent performance in lithium-ion batteries, facilitating the lithiation/delithiation process in MoS₂ as an electroactive material.