CATHODE FOR ALL-SOLID-STATE BATTERY, AND ALL-SOLID-STATE BATTERY COMPRISING SAME

The present invention relates to a positive electrode for an all-solid-state battery, comprising a positive electrode active material, a sulfide-based solid electrolyte, a conductive material and a binder, wherein the sulfide-based solid electrolyte comprises a first sulfide-based solid electrolyte containing a bromine (Br) element and a second sulfide-based solid electrolyte not containing a bromine (Br) element, wherein the positive electrode active material comprises a core capable of reversible adsorption and release of lithium ions; and a coating layer formed on the surface of the core, where the coating layer comprises the first sulfide-based solid electrolyte, and an all-solid-state battery comprising the positive electrode.