The Electrical Behaviour Study on Saltwater Batteries in Various Electrolyte Concentrations and Cross-Sectional Areas

study has been conducted to analyze the effect of various electrolyte concentrations and cross-sectional areas on voltage and current in batteries using the galvanic cell method (voltaic cells). This study aims to determine the electrolyte concentration and electrode cross-sectional area that provide optimal effects on voltage, current, and power in batteries. Variations in NaCl electrolyte concentration of 1 M; 3 M; 5 M; 7 M; and 9 M as electrolytes and variations in the cross-sectional area of Cu-Al 5 cm2, 10 cm2, 15 cm2, 20 cm2, 25 cm2 as electrodes. From these tests, the optimal voltage value was obtained at a concentration of 7 M and a cross-sectional area of 25 cm2 with a value of 0.73 V, the optimal current value at a concentration of 7 M and a cross-sectional area of 25 cm2 with a value of 19.99 mA, and the optimal power value at a concentration of 7 M and a cross sectional area of 25 cm2 with a value of 14.593 mwatts. The larger the cross sectional area of the electrode, the greater the electrical energy produced. The optimum concentration of electrolyte greatly influences the value of the electrical power produced.