CATHODE AND ALL-SOLID-STATE SECONDARY BATTERY COMPRISING SAME

WIPO Patent Application WO/2024/071928

A1

Provided are a cathode for an all-solid-state secondary battery and an all-solid-state secondary battery comprising same, the cathode comprising: a cathode current collector; and a cathode active material layer disposed on the cathode current collector, wherein the cathode active material layer includes a composite cathode active material and a sulfide-based solid electrolyte, the composite cathode active material includes: a core including a lithium transition metal oxide; and a shell disposed on the surface of the core, the shell includes at least one first metal oxide and a first carbon-based material, the first metal oxide is disposed in a matrix of the first carbon-based material, the first metal oxide is represented by chemical formula MaOb (where 0