Solid electrolyte composition, and method for manufacturing solid electrolyte member
A solid electrolyte composition of the present disclosure includes: a solid electrolyte material including an oxygen element and a halogen element; and an organic solvent. The organic solvent includes at least one selected from the group consisting of a halogen-group-containing compound and a hydrocarbon. The solid electrolyte material includes at least one selected from the group consisting of Zn, Sn, Al, Sc, Ga, Bi, Sb, Zr, Hf, Ti, Ta, Nb, W, Y, Gd, Tb, and Sm.
1. A solid electrolyte composition comprising:
a solid electrolyte material including an oxygen element and a halogen element; and
an organic solvent, wherein:
the organic solvent includes at least one selected from the group consisting of a halogen-group-containing compound and a hydrocarbon,
the solid electrolyte material includes at least one selected from the group consisting of a material including Li, Ta, O, and Cl, a material including Li, Nb, O, and Cl, and a material including Li, Ta, Nb, O, and Cl, and
a ratio of the number of moles of O to the number of moles of Cl is 0.16 or more and 0.35 or less, and
a ratio of the number of moles of Li to the number of moles of M is 0.6 or more and 2.4 or less, M being at least one selected from the group consisting of Ta and Nb.
2. The solid electrolyte composition according to claim 1 , wherein
the solid electrolyte material has lithium ion conductivity.
3. The solid electrolyte composition according to claim 1 , wherein
the solid electrolyte material includes at least one selected from the group consisting of LiTaOCl 4 , LiNbOCl 4 , and LiTa 0.9 Nb 0.1 OCl 4 .
4. The solid electrolyte composition according to claim 1 , wherein
the halogen-group-containing compound contains only a halogen group as a functional group.
5. The solid electrolyte composition according to claim 1 , wherein
the organic solvent has a cyclic structure.
6. The solid electrolyte composition according to claim 5 , wherein
the organic solvent includes an aromatic compound.
7. The solid electrolyte composition according to claim 1 , wherein
the organic solvent includes at least one selected from the group consisting of tetralin, ethylbenzene, mesitylene, pseudocumene, xylene, cumene, 1,2,4-trichlorobenzene, chlorobenzene, 2,4-dichlorobenzene, o-chlorotoluene, 1,3-dichlorobenzene, p-chlorotoluene, 1,2-dichlorobenzene, 1,4-dichlorobutane, 2,4-dichlorotoluene, and 3,4-dichlorotoluene.
8. The solid electrolyte composition according to claim 1 , wherein
the organic solvent includes at least one selected from the group consisting of tetralin, mesitylene, xylene, cumene, o-chlorotoluene, p-chlorotoluene, 1,4-dichlorobutane, 2,4-dichlorotoluene, and 3,4-dichlorotoluene.
9. The solid electrolyte composition according to claim 1 , wherein
the solid electrolyte material is substantially free of a sulfur element.
10. A method for manufacturing a solid electrolyte member, the method comprising
removing the organic solvent from the solid electrolyte composition according to claim 1 .
11. The method for manufacturing a solid electrolyte member according to claim 10 , wherein
the organic solvent is removed by drying under reduced pressure.