Patent ID: 8778543

Claim:
A solid electrolyte glass comprising: a sulfide-based lithium-ion-conducting solid electrolyte, wherein the sulfide-based lithium-ion-conducting solid electrolyte contains α-alumina, and a lithium containing compound selected from the group consisting of Li 2 S—SiS 2 , Li 2 S—SiS 2 —LiI, Li 2 S—SiS 2 —LiBr, Li 2 S—SiS 2 —LiCl, Li 2 S—SiS 2 —B 2 S 3 —LiI, Li 2 S—SiS 2 —P 2 S 5 —LiI, Li 2 S—B 2 S 3 , Li 2 S—P 2 S 5 , Li 2 S—P 2 S 5 —LiI, Li 2 S—P 2 S 5 -ZmSn, and Li 2 S—GeS 2 wherein, Z=Ge, Zn, Ga, m is integer except 0, and n is integer except 0, α-alumina is mixed in the sulfide-based lithium-ion-conducting solid electrolyte in a range of from 5 to 7 wt % based on the weight of the sulfide-based lithium-ion-conducting solid electrolyte, and the chemical constituents in the lithium containing compound are chemically bonded together.