Abstract
The application of lithium–sulfur batteries (LSBs) is still hampered by the shuttle effect of soluble lithium polysulfides (LiPSs) intermediates and slow redox kinetics. Therefore, in this work, a novel Mo,N co‐doped porous carbon (Mo,N‐C) was successfully synthesized by simply calcining a mixture of ramie degumming waste with cost‐effective molybdenum salt, and then employed as the LiPSs anchor. Due to the conductive carbon matrix, abundant porous structures as well as the doping Mo and N heteroatoms, the sluggish redox kinetic of the cathode has been significantly improved and the shuttle phenomenon of LiPSs has been effectively inhibited, consequently, the synthesized Mo,N‐C/S‐0.4 composite cathode could demonstrate a good initial capacity of 1379.2 mAh g‐1 at 0.2 C, and the reversible capacity could remain at 997.5 mAh g‐1 after 100 cycles. Even at a high discharge rate of 1.0 C, the capacity could remain at 700.2 mAh g‐1 after 400 cycles. This work provides a new avenue for utilizing the waste biomass on clean energy storage.
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