Carbon-silicon core-shell nanowires as high capacity electrode for lithium ion batteries.

  title={Carbon-silicon core-shell nanowires as high capacity electrode for lithium ion batteries.},
  author={Li-Feng Cui and Yuan Yuan Yang and Ching-mei Hsu and Yi Cui},
  journal={Nano letters},
  volume={9 9},
We introduce a novel design of carbon-silicon core-shell nanowires for high power and long life lithium battery electrodes. Amorphous silicon was coated onto carbon nanofibers to form a core-shell structure and the resulted core-shell nanowires showed great performance as anode material. Since carbon has a much smaller capacity compared to silicon, the carbon core experiences less structural stress or damage during lithium cycling and can function as a mechanical support and an efficient… CONTINUE READING
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