SULFIDIC SOLID ELECTROYLYTE AND ITS PRECURSOR

Abstract

The present invention relates to a solid electrolyte, its precursor, methods for producing the same as well as its use, e.g. in electrochemical cells or capacitors, fuel cells, batteries, and sensors. The solid electrolyte may be represented by the following formula (II): wherein X is independently selected from group 17 elements, preferably Cl, Br and I, Y is independently selected from P, As, Ge, Si, B, Sn, Ga, Al, and Sb, 4≤n≤5, 4≤c≤6, and 0<d≤2, being substantially free from reflections in a X-ray powder diffractogram using CuKa radiation at a 2θ angle [°]:17.5, 18.0, 32.5, 34.9, 44.8, 46.7, 50.2 and/or 53.1.

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