A crosslinking hydrogel binder for high-sulfur content S@pPAN cathode in rechargeable lithium batteries

Abstract High-energy density lithium-sulfur (Li-S) batteries have received intensive attention as promising energy storage system. Among diverse sulfur-based cathodes, sulfurized pyrolyzed poly (acrylonitrile) (S@pPAN) cathode delivered superior electrochemical performance. However, the sulfur content of S@pPAN is relatively low (