Highly conductive freestanding sulfur cathode based on low-defect graphene-PEDOT:PSS aerogel for Li-S batteries

Highly conductive freestanding cathode, featuring with a unique aerogel configuration with sulfur deposited on low-defect graphene and subsequent encapsulation in poly(3,4-ethylene-dioxythiophene):poly(styrenesulfonate), is designed and synthesized for lithium-sulfur batteries. The freestanding cathode exhibits an ultrahigh conductivity for fast ions/electrons transportation and realizes effective immobilization of polysulfides, thereby enhancing lithium storage performance. This research provides a potential for use in high-performance flexible lithium-sulfur batteries.