Abstract
SiOC anode materials are widely studied due to their good stability, high theoretical specific capacity, and low cost, which make them attractive as potential anode materials. However, the poor conductivity of SiOC limits its application in lithium-ion batteries. In order to improve the electrochemical properties of SiOC materials, SiOC/carbon nanotube (CNT) nanocomposites with different content were prepared by the wet chemical method. The effects of CNTs on the microstructure and electrochemical performance of the nanocomposites were studied. When the current density was 0.2 C, the reversible capacity of SiOC/CNTs-3 composites reached 517.01 mAh/g after 100 cycles, while that of SiOC was only 413.52 mAh/g. The results show that the introduction of CNTs improved the electrochemical properties of SiOC materials. Therefore, the study provides an effective strategy for improving the electrochemical properties of silicon-based anode materials.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (No. 52202113, 52272089), Postdoctoral Science Foundation of China (No. 2021M702550), Scientific Research Program Funded by Shaanxi Provincial Education Department (No. 20JY042), Key Research and Development Programs of Shaanxi (No. 2020SF-426, 2021GY-295), Natural Science Basic Research Program of Shaanxi for Distinguished Young Youths (No. 2021JC-43), and Lifting Program for Young Talents of Shaanxi Science and Technology Association (No. 20220422). We would like to thank Dr. Xue Song at the Instrumental Analysis Center of Xi’an University of Architecture and Technology for their assistance with measurement and discussion of SEM, Raman, and other analyses.
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Feng, X., Chen, H., Zhang, J. et al. Constructing a Conductive Nest to Improve the Electrochemical Properties of SiOC Anodes Through CNT Additives. J. Electron. Mater. 53, 1074–1082 (2024). https://doi.org/10.1007/s11664-023-10828-6
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DOI: https://doi.org/10.1007/s11664-023-10828-6