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首页> 外文会议>Batteries and energy technology (General) - 217th ECS meeting >Interfacial properties of fullerene coated silicon film as an anode material for lithium secondary batteries: effect of coating layer thickness
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Interfacial properties of fullerene coated silicon film as an anode material for lithium secondary batteries: effect of coating layer thickness

机译：富勒烯包覆的硅膜作为锂二次电池负极材料的界面特性：涂层厚度的影响

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摘要

Silicon thin films with thickness of about 300 nm were coated by fullerene thin film with different thickness (50-200 nm) using plasma assisted thermal evaporation technique. The fullerene coated silicon films were then characterized as anode materials of lithium secondary batteries. The interfacial properties of the electrodes coated with fullerene film of different thicknesses have been studied using impedance spectroscopy and compared with those of uncoated silicon electrodes. An enhancement of the performances of the coated electrodes in terms of reduced solid electrolyte interface (SEI) and charge transfer resistances has been found. As the thickness of fullerene is increased, the coated electrodes demonstrated a smaller initial irreversible capacity and a more reduced charge transfer resistance. However, there was a thickness limit that gave a larger interfacial resistance than that of bare silicon film anodes.
机译：使用等离子辅助热蒸发技术，用不同厚度（50-200 nm）的富勒烯薄膜涂覆厚度约为300 nm的硅薄膜。然后将富勒烯涂覆的硅膜表征为锂二次电池的负极材料。已经使用阻抗谱研究了涂覆有不同厚度的富勒烯膜的电极的界面性质，并将其与未涂覆的硅电极的界面性质进行了比较。已经发现，就减少的固体电解质界面（SEI）和电荷转移电阻而言，涂覆电极的性能得到增强。随着富勒烯厚度的增加，涂覆的电极显示出较小的初始不可逆容量和更大的降低的电荷转移电阻。然而，存在厚度极限，该极限使界面电阻比裸硅膜阳极更大。

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  • 来源
  • 会议地点 Vancouver(CA);Vancouver(CA)
  • 作者

    Arenst Andreas Arie; Joong Kee Lee;

  • 作者单位

    Energy Conversion Technology Division, University of Science and Technology, 113 Gwahangno, Yuseong-gu, Daejeon, 305-333,Korea Advanced Energy Materials Processing Laboratory, Battery Research Center, Korea Institute of Science and Technology, P.O.BOX 131, Cheongryang, Seoul 130-650, Korea;

    Energy Conversion Technology Division, University of Science and Technology, 113 Gwahangno, Yuseong-gu, Daejeon, 305-333,Korea Advanced Energy Materials Processing Laboratory, Battery Research Center, Korea Institute of Science and Technology, P.O.BOX 131, Cheongryang, Seoul 130-650, Korea;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 独立电源技术（直接发电）;
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