Solid Electrolyte Membrane And All Solid State Battery Comprising Same

Abstract: The present invention relates to a solid electrolyte membrane for an all-solid-state battery and an all-solid-state battery comprising same, the solid electrolyte membrane comprising first solid electrolyte particles and second solid electrolyte particles, wherein the Young's modulus of the first solid electrolyte particles is greater than the Young's modulus of the second solid electrolyte particles, the average particle size (D50) of the first solid electrolyte particles and the second solid electrolyte particles ranges from 1 to 5µm, and the first solid electrolyte particles and the second solid electrolyte particles are mixed in a weight ratio of 7:3 to 2:8 (exclusive).

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