Biomass carbon combined antimony sulfide with various contents as anodes with improved cycle stability in the sodium ion batteries

Sodium-ion batteries (SIBs) is a promising alternative for lithium-ion batteries (LIBs) due to abundant re-sources and low cost. Herein, a series of composites, CDC/SbSxx (xx means weight content of Sb2S3), composed from catkin derived carbon (CDC) material, possessing tube-like morphology, and Sb2S3 fine particles prepared by solvothermal method were selected as anodes for SIBs. The electrochemical property results demonstrated that the CDC/SbSxx electrodes afforded improved cycling stability and enhanced rate performance due to the higher Sb2S3 particle retention ability and improved electric conductivity. Furthermore, the content of Sb2S3 played in important role in electrochemical performance. The CDC/SbS15 composite electrode accommodated a higher Sb2S3 content (16.8 wt%) and exhibited improved discharge capacity and excellent cycling performance even at a high current density. Given the cost effectiveness and material sustainability, this work provides a potential strategy to develop low-cost and sustainable composite anode for advanced SIBs. (c) 2022 Elsevier B.V. All rights reserved.

Automated summary

In this study, a composite material CDC/SbSxx composed of catkin derived carbon (CDC) material with tube-like morphology and Sb2S3 fine particles prepared by solvothermal method was used as an anode for sodium-ion batteries (SIBs). The results showed that the CDC/SbSxx electrodes exhibited improved cycling stability and enhanced rate performance due to the higher Sb2S3 particle retention ability and improved electric conductivity. The content of Sb2S3 also played a crucial role in the electrochemical performance.