SULFIDE SOLID ELECTROLYTE MATERIAL

摘要

The main object of the present invention is to provide a sulfide solid electrolyte material with less hydrogen sulfide generation amount. The present invention solves the above-mentioned problem by providing a sulfide solid electrolyte material using a raw material composition containing Li2S and sulfide of an element of the group 14 or the group 15 in the periodic table, containing substantially no cross-linking sulfur and Li2S.

主权项

1. A sulfide solid electrolyte material comprising Li4SiS4,
wherein no Li2S peak is observed by X-ray diffraction, the sulfide solid electrolyte material contains no cross-linking sulfur, and in the case that 100 mg of the sulfide solid electrolyte material is pressed at a pressure of 5.1 ton/cm2 by using a pelleting machine having a molding portion with an area of 1 cm2 to form a pellet, and the pellet is disposed inside a hermetically sealed desiccator at 1755 cc, air atmosphere, a temperature of 25° C., and a humidity of 40%, to measure a hydrogen sulfide generation amount generated for 300 seconds from the start by using a hydrogen sulfide sensor, the hydrogen sulfide generation amount is 10 cc/g or less.