Modelling of Seawater Activated Battery (SAB) Based on Critical Parameters Affecting the Voltage and Capacity Used for High Power Applications

Seawater Activated Batteries (SABs) have been widely used for small power equipment, but high-power SABs are required for military applications. This paper presents a modelling approach for SABs based on critical parameters affecting voltage and capacity performance for high power applications. The proposed model employs an exponential curve voltage characteristic and considers main parameters in two critical curve zones. Laboratory experiments were conducted using a magnesium rod anode and carbon rod cathode with a sodium chloride electrolyte solution. The critical parameters obtained from the experiment were used to build and verify the model. The results demonstrate the feasibility of SABs for supplying high power equipment. This study contributes to the development of high-power SABs for military and other applications.