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Keywords:

  • Na-S batteries;
  • sodium ion;
  • electrochemical properties;
  • nanoparticles;
  • mesoporous carbon
Thumbnail image of graphical abstract

A novel strategy for nano-copper-assisted immobilization of S in high-surface-area mesoporous carbon cathodes for room temperature Na-S batteries is presented. The unique structural composite cathode containing 50% S shows stable and high reversible capacities, together with remarkable rate and cycling capabilities.