FLUORIDE ION CONDUCTIVE POLYMERIC SOLID ELECTROLYTE, SOLID ELECTROLYTE MATERIAL INCLUDING THE SAME, FLUORIDE SHUTTLE BATTERY, AND METHOD FOR PRODUCING THE SAME

A fluoride ion conductive polymeric solid electrolyte includes an ion conductive polymer, a metal fluoride, and an anion scavenger material. The anion scavenger material includes a compound having a molecular weight of greater than or equal to 175.