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Preparation and Characterization of Core-Shell Structure Hard Carbon/Si-Carbon Composites with Multiple Shell Structures as Anode Materials for Lithium-Ion Batteries

Author

Listed:
  • Jong-Chan Kim

    (Department of Materials Science & Engineering, Kangwon National University, Gangwondaehakgil, Gangwon-do, Chuncheon-si 24341, Korea)

  • Kyung-Jin Kim

    (Department of Materials Science & Engineering, Kangwon National University, Gangwondaehakgil, Gangwon-do, Chuncheon-si 24341, Korea)

  • Sung-Man Lee

    (Department of Materials Science & Engineering, Kangwon National University, Gangwondaehakgil, Gangwon-do, Chuncheon-si 24341, Korea)

Abstract

Novel core-shell structure hard carbon/Si-carbon composites are prepared, and their electrochemical performances as an anode material for lithium-ion batteries are reported. Three different types of shell coating are applied using Si-carbon, Si-carbon black-carbon and Si-carbon black-carbon/graphite nanosheets. It appears that the use of n-Si/carbon black/carbon composite particles in place of n-Si for the shell coating is of great importance to achieve enhanced electrochemical performances from the core-shell composite samples, and additional wrapping with graphite nanosheets leads to a more stable cycle performance of the core-shell composites.

Suggested Citation

  • Jong-Chan Kim & Kyung-Jin Kim & Sung-Man Lee, 2021. "Preparation and Characterization of Core-Shell Structure Hard Carbon/Si-Carbon Composites with Multiple Shell Structures as Anode Materials for Lithium-Ion Batteries," Energies, MDPI, vol. 14(8), pages 1-12, April.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:8:p:2104-:d:533312
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    References listed on IDEAS

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    1. Xinghao Zhang & Denghui Wang & Xiongying Qiu & Yingjie Ma & Debin Kong & Klaus Müllen & Xianglong Li & Linjie Zhi, 2020. "Stable high-capacity and high-rate silicon-based lithium battery anodes upon two-dimensional covalent encapsulation," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
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