| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a sulfide solid electrolyte capable of manufacturing a sulfide solid electrolyte whose ionic conductivity is improved while productivity and recovery rate are increased.SOLUTION: A manufacturing method of sulfide solid electrolyte has: a process of obtaining a pulverized product by pulverizing a mixture which is obtained by mixing a sulfide solid electrolyte containing sulfide and one type of halide or a raw material of the electrolyte, an ether compound, and solvent; and a heat treatment process in which the obtained pulverized product is heated to obtain a crystallized sulfide solid electrolyte. When the weight of the sulfide solid electrolyte or the raw material thereof is A[g], the weight of the ether compound is B[g], and the weight of the solvent is C[g], 0.44≤C/(A+B+C)≤0.70 and 0.10≤B/(A+B+C)≤0.36 hold. |
