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Keywords:

  • lithium-ion batteries;
  • lithium-sulfur batteries;
  • nanocomposites;
  • graphite oxide;
  • intercalation
Thumbnail image of graphical abstract

Sulfur intercalated expanded graphite for Li-S battery cathodes is synthesized by in situ one-step sulfur reduction and intercalation of graphite oxide (GO). The unique structural reduced graphene oxide (RGO)/S nanocomposite cathodes exhibit high capacity, super rate capability, and long cycle stability. The exceptional electrochemical properties of the RGO/S composites plus their simple fabrication make this class of materials attrac­tive for further investigation in Li-S batteries applications.