LITHIUM SULFIDE, METHOD FOR PRODUCING THE LITHIUM SULFIDE, AND METHOD FOR PRODUCING INORGANIC SOLID ELECTROLYTE

摘要

PROBLEM TO BE SOLVED: To provide a method for producing lithium sulfide of small particle diameter.SOLUTION: There is provided a method for producing lithium sulfide by: bringing lithium carbonate of 10 m average particle diameter into contact with a gaseous sulfur compound in a fluidizing state from at a temperature of 450°C or higher to at a melting point of lithium carbonate or lower; and reacting lithium carbonate with the sulfur compound to obtain the lithium sulfide.