All-solid-state cells based on solid electrolyte systems Cu1−xAgxI–Ag2O–Y, where x = 0.05–0.25; Y = MoO3, B2O3, SeO2, V2O5 and CrO3

All-solid-state cells of the configuration (−)Ag + SE//SE//I2-phenothiazine + C(+) using the best conducting compositions of the solid electrolyte systems, namely, Cu1−xAgxI–Ag2O–Y where x = 0.05, 0.1, 0.15, 0.2 and 0.25, Y = MoO3, B2O3, SeO2, V2O5 and CrO3, as the electrolytes were fabricated. Discharge, polarization and power characteristics of these cells were also evaluated. The open circuit voltage values of these cells were in the range 620–635 mV. The stability of these cells has been indicated by the constancy of their OCV over a period of 6 months. The polarization and discharge studies on these cells have shown that typical cells based on the electrolytes with Y = B2O3, SeO2 and V2O5 would possess discharge capacities of 12.84, 3.76 and 5.05 mA h and specific energy of 6.55, 1.81 and 2.77 W h kg−1, respectively. The solid electrolytes have good electrochemical stability and compatibility with the Ag/Phenothiazine-I2 electrode couple thus offering their suitability of application in microwatt power sources.