This paper is devoted to the effect of sodium sulfate as negative paste additive on the performance of the lead-acid battery. Six different percentages of sodium sulfate were added to negative paste. The effect of sod. Lead-acid technology currently remains the most reliable, safe and affordable power source. 2.1. Reagent and materialAll materials and reagents used in experiments were industrial grade and all of them were obtained from Iranian companies. The i. 3.1. Discharge capacity and cold cranking abilityIt is expected that sodium sulfate is dissolved in sulfuric acid solution in paste making step. Afte. Batteries containing sodium sulfate show a remarkable electrical behavior during the test. With respect to active material utilization, sodium sulfate gave the best performance at. We gratefully acknowledge Professor Afsaneh Safavi for her valuable cooperation and discussion, Payame-Noor University of Ardakan and Sepahan Battery Industrial Complex for thei.
