Abstract
Energy consumption has shown a dramatic surge due to the advancement of technology as part of an agenda in promoting the industry revolution 4.0. Hence, there is an urge to introduce a new energy storage system to fulfill the demand of energy consumption. Aluminum-air battery is a promising candidate due to the nature of high recyclability, low cost, and high energy density. However, the performance of aluminum-air battery is still limited due to anode corrosion. This paper aims to reduce corrosion by introducing a novel polypropylene pad separator in the aluminum-air battery. The electrolyte used is KOH with aluminum foil as the anode and the cathode is made of carbon cloth. The discharge performance of the battery is measured using different discharge current. The result shows that the battery can maintain 0.9 V for 90 min with 1 M of KOH electrolyte. Next, a resistor–capacitor model is applied to model the discharge behavior. The study revealed that the first-order resistor–capacitor model agreed well with the experimental data with an average error of 9.54%. The battery model can be used to predict the dynamic behavior of the polypropylene-based separator aluminum-air battery to develop the battery management system.
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