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

Claim 1:
2. An 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 comprises a solid electrolyte, and the solid electrolyte comprising 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, K, Ca, Fe, Mg, Ag, Cu, Zr, Zn, 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.