The Effect Of Cement Ash On The Ionic Conductivity And Tensile Strength Of PVA/Salt/Gelatin Solid Electrolyte Membrane

Cement ash is waste produced by the construction industry and can pollute the environment if not managed properly. In efforts to develop environmentally friendly batteries, cement ash has become an attractive material for use in the electrochemical field. This research examines the potential of cement ash as an active ingredient in the solid electrolyte PVA (polyvinyl alcohol), sodium chloride (NaCl), and gelatin (Gel) in aluminum air batteries. The aim of this research is to determine the appropriate cement ash concentration to achieve maximum conductivity, capacity and strength. The results showed that the addition of 2 g of cement ash produced the highest ionic conductivity and longest discharge duration at 1 mA of 0.254 mS/cm and 260.29 seconds respectively. This shows that the addition of 2 grams of cement ash produces the highest capacity, namely 0.072 mAh. However, the highest strength occurred when 1.5 g of cement ash was added at 12.84 MPa. Conductivity and capacity play an important role in battery performance and are interrelated. Meanwhile tensile strength is needed for battery durability. This study shows that incorporating cement ash into PVA/NaCl/Gel electrolyte membranes can optimize the potential of aluminum air batteries in the future.