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Keywords:

  • mesoporous silicon;
  • rate capability;
  • anode;
  • lithium-ion batteries
Thumbnail image of graphical abstract

A lotus-root-like three-dimensional mesoporous silicon is successfully prepared by a magnesiothermic reduction method using SBA-15 silica as both template and silicon precursor. After carbon coating via a chemical vapor deposition process, this anode material shows high reversible capacity of ∼1900 mAh g−1 and excellent rate performance even up to 15C.