MANUFACTURING METHOD OF LITHIUM ION CONDUCTIVE GLASS-CERAMIC, LITHIUM ION CONDUCTIVE GLASS-CERAMIC AND LITHIUM ION SECONDARY CELL

摘要

This manufacturing method of a lithium ion conductive glass-ceramic is characterized by involving (a) a step for mixing raw materials to obtain a raw material mixture that contains, expressed in mol% in terms of oxides, 25-50% SiO₂, 10-45% ZrO₂, more than 0% and no more than 30% P₂O₅, and 5-40% Na₂O, and obtaining, through a process of melting, cooling and solidifying the raw material mixture, a workpiece consisting of a glass-ceramic, and (b) a step in which the workpiece undergoes ion exchange treatment in a molten salt containing lithium ions.