| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method of producing a sulfide solid electrolytic material with high productivity.SOLUTION: A method of producing a sulfide solid electrolytic material includes a drying step of drying a precursor aqueous solution containing LiI and LiOH to remove water so as to obtain a precursor mixture and an electrolyte synthesizing step of carrying out a sulfurization treatment of sulfurizing LiOH in the precursor mixture to LiHS, a hydrogen sulfide removal treatment of eliminating hydrogen sulfide from LiHS to form LiS and a synthesis treatment of synthesizing a sulfide solid electrolytic material. In the precursor aqueous solution, the mol ratio of LiOH to LiI, (M/M), is 1 or higher.</p> |
