Publication

Abstract : Electrochemical energy sources especially rechargeable batteries hold a great promise for meeting the ever-growing demand for energy. Though lead acid and lithium ion batteries have been highly successful commercially, the safety issues in using them have led to the development of alternate rechargeable systems. In this regard, silver peroxide-zinc rechargeable batteries are of great importance especially as energy sources for biomedical devices as they can be tuned to obtain low power discharge over prolonged time duration. This study focuses on the electrochemical synthesis of silver peroxide on silver electrodes and its use as the cathode for rechargeable battery. Synthesis parameters were optimized for the formation of silver peroxide and the oxide thus formed was characterized using XRD, EDS, IR spectroscopy, FESEM and AFM. Two different prototypes of batteries (two compartment and pouch model) were fabricated using zinc as the anode and silver peroxide as cathode. The prototypes were able to provide potential of 1.5 V with a power rating of 150 µW and 3.3 µW for the two compartments and pouch model respectively. Both the models were rechargeable and are having low internal resistance