Composed of Metallic (Sponge) Lead ( ) . Electrolyte: A dilute solution of Sulfuric Acid ( ) and water. The Reaction Cycle:
As the battery powers a device, both plates react with the sulfuric acid to form Lead Sulfate ( PbSO4cap P b cap S cap O sub 4 Lead-acid battery technologies : fundamentals, ...
When an external current is applied, the lead sulfate is converted back into lead dioxide on the positive plate and metallic lead on the negative plate, restoring the acid concentration of the electrolyte. 2. Major Battery Technologies and Designs Composed of Metallic (Sponge) Lead ( )