SOLID-STATE BATTERY WITH PURE AND DOPED SODIUM YTTRIUM FLUORIDE AS THE SOLID-ELECTROLYTE

Solid state batteries using pure and doped sodium yttrium fluoride as the solid electrolytes were fabricated at ambient temperature. The dis charge characteristics of the cells for a load of 1 M Omega were studi ed. The cell with NaYF4:Dy as the solid electrolyte exhibited a larger plateau region compared with the other cells. Open circuit voltage an d short circuit current of the cells range from 2.5 to 2.7 V and 7 mu A to 435 mu A respectively. The performances of the cells under varyin g loads for a constant voltage of 1.5 V were also investigated. Variou s cell parameters were evaluated.