A Nitrogen and Sulfur Dual‐Doped Carbon Derived from Polyrhodanine@Cellulose for Advanced Lithium–Sulfur Batteries

A sulfur electrode exhibiting strong polysulfide chemisorption using a porous N, S dual-doped carbon is reported. The synergistic functionalization from the N and S heteroatoms dramatically modifies the electron density distribution and leads to much stronger polysulfide binding. X-ray photoelectron spectroscopy studies combined with ab initio calculations reveal strong Li+–N and Sn2−–S interactions. The sulfur electrodes exhibit an ultralow capacity fading of 0.052% per cycle over 1100 cycles. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or…

• NS
  Natural Sciences and Engineering Research Council of Canada
• NR
  Natural Resources Canada