Cathode For All Solid State Battery And All Solid State Battery Comprising Same

Abstract: The present invention relates to a cathode for an all-solid-state battery, and an all-solid-state battery including same. More specifically, the cathode active material layer included in the cathode comprises a cathode active material, a sulfide-based solid electrolyte, and a conductive material, wherein the particle diameter of the conductive material is configured to lie between the particle diameter of the cathode active material and the particle diameter of the sulfide-based solid electrolyte, thereby increasing the interfacial area between the cathode active material and the sulfide-based solid electrolyte while reducing the overall porosity of the cathode. Consequently, the conductivity of the cathode is maintained, and the energy density of the cell is enhanced without compromising cell performance.

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