AMBIENT-TEMPERATURE SOLID-STATE BATTERIES

The application of solid ionic compounds to solid state batteries has driven the search for new solid electrolytes. The problem that initially limited this development was the absence of solid state materials with appropriate electrical transport properties. Various types of batteries were developed during the past forty years and are reviewed. Long term ( 1 8.5 years) studies of solid state Ag/I2 batteries confirm the stability of these systems. The Li/I2 pacemaker battery has been the most successfully commercialized solid state cell. The major focus of research is now directed to the rechargeable solid polymer electrolyte battery.