Polymeric rechargeable solid-state proton battery

Rechargeable proton conducting polymeric solid-state batteries have been fabricated with the configuration Zn + ZnSO4·7H2O || PEO:NH4ClO4 + PC || V2O5 + PbO2 + C + E. The maximum cell voltage is ∼1.57 V at full charge. The discharge characteristics of the cell have been studied at different loads. The cell remains stable for more than 180 h for low current drain (∼μA) making it suitable for low current density application. The cell also showed a good rechargeability which was tested for nine cycles.