Science Advances

Supplementary Materials

This PDF file includes:

  • fig. S1. Schematic illustrations of the chemical structure and synthesis method.
  • fig. S2. EDX mappings of pPAN/SeS2.
  • fig. S3. N2 sorption isotherms of multichannel pPAN/SeS2 fibers and pPAN/SeS2 powder.
  • fig. S4. Morphology characterizations.
  • fig. S5. TGA curves of pPAN/S and pPAN/Se.
  • fig. S6. The active material contents of various PAN-supported or microporous carbon-supported composites for Li-S or Li-Se/S batteries.
  • fig. S7. EIS of pPAN/S, pPAN/SeS2, and pPAN/Se.
  • fig. S8. Comparisons of capacity utilization and energy density for Li storage.
  • fig. S9. CV curves from 0.2 to 1.2 mV s−1.
  • fig. S10. Rate performances.
  • fig. S11. Comparison of normalized capacities.
  • fig. S12. CV curves and voltage profiles of pPAN/SeS2 for Na storage.
  • fig. S13. Comparisons of RT Na-S and Na-Se/S batteries.
  • References (54–63)

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