All-in-One Homogenized Sulfur/Cobalt Disulfide Composite Cathodes for Harmonious Interface All-Solid-State Lithium-Sulfur Batteries.

The development of high-performance all-solid-state lithium-sulfur batteries (ASSLSBs) has garnered considerable attention due to their potential for high energy density and enhanced safety. However, significant challenges such as poor cycling stability, interface incompatibility, and reaction kinetics hinder severely their practical application. In this work, an all-in-one sulfur/cobalt disulfide (S/CoS) composite cathode is proposed by integrating sulfur and homogenized cobalt disulfide (CoS) as the sulfur-based cathode materials with the sulfide solid electrolyte (LiPSCl) through ball milling.