Patent ID: 11908994
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC H

Claim 0:
1. K all-solid-state secondary battery comprising:
a cathode layer;
an anode layer; and
a solid electrolyte layer disposed between the cathode layer and the anode layer,
wherein, the solid electrolyte layer and the cathode layer comprise a solid electrolyte, and the solid electrolyte comprises a compound represented by Formula 1, and
the solid electrolyte of the cathode layer has an average particle diameter, which is smaller than an average particle diameter of the solid electrolyte used in the solid electrolyte layer:

(Li1-aMa)7-d+xPS6-d-x+kNxXd  Formula 1, wherein, in Formula 1,
M is Na or K, or a combination thereof;
X is at least two of CI, Br, F, I, or a pseudohalogen; and
0.1≤x≤0.125, 0<a<1, 0<d≤1, and 0≤k<1, and, wherein the compound has an argyrodite crystal structure.