FLUORIDE ION-CONDUCTIVE MATERIAL AND FLUORIDE SHUTTLE SECONDARY BATTERY

摘要

To provide a novel fluoride ion-conductive material which can be used, for example, for a fluoride shuttle secondary battery.SOLUTION: There is provided a fluoride ion-conductive material which comprises lanthanum fluoride and calcium fluoride. The fluoride ion-conductive material, for example, has a composition represented by the formula, LaCaF, wherein x in the formula satisfies 0.05≤x≤0.5. The fluoride ion-conductive material can be used, for example, for an electrolyte of a fluoride shuttle secondary battery using fluoride ions as a shuttle cock.SELECTED DRAWING: Figure 1