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

초록

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 degrees 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.

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