LAUSR

Abstract Proton-conducting membranes were prepared using a solution-casting technique. The highest membrane conductivity of (3.83 ± 0.73) × 10 −3  S cm −1 was achieved in chitosan acetate–50 wt.% ammonium acetate–70 wt.% ethylene carbonate. The batteries were fabricated with a configuration of Zn + ZnSO 4 ·7H 2 O ‖ chitosan membrane ‖ MnO 2 and Zn + ZnSO 4 ·7H 2 O ‖ chitosan membrane ‖ V 2 O 5 . The cathode materials produced open circuit voltages of 1.60 and 1.27 V using manganese (IV) oxide (MnO 2 ) and vanadium (IV) oxide (V 2 O 5 ), respectively. The discharge capacities of the batteries were 45.0 and 34.7 mA h using MnO 2 and V 2 O 5 cathode at 1.0 mA, respectively. The maximum power densities were 1.83 mW cm −2 for the battery with MnO 2 and 1.36 mW cm −2 for the battery with V 2 O 5 cathode.