VITREOUS ALCALI-CATION CONDUCTING COMPOSITION, METHOD OF PREPARING SUCH A COMPOSITION AND AN ELECTROCHEMICAL CELL USING SUCH A COMPOSITION

摘要

A cation conductive vitreous alkaline composition and a method of preparing such a composition. The composition corresponds to a formula of aP2S5, bLi2S, cLiX, where: X represents chlorine, bromine or iodine; c is greater than or equal to 0; the ratio b/(a+b) lies between 0.61 and 0.70; and the ratio c/(a+b+c) is less than or equal to a limit which corresponds to solubility in the vitreous phase of LiX in the composition aP2S5, bLi2S.