What Is The Chemical Reaction In A Lead Acid Battery. The lead plate a chemical reaction is occurring and energy is produced. When the loads are connected across the plates the sulfuric acid again breaks into positive ions 2H and negative ions SO 4.
In other electrochemical systems like Nickel-Cadmium batteries Lithium-ion batteries the electrolytes do not take part in the reactions. Lead acid batteries store energy by the reversible chemical reaction shown below. The chemical reaction in the battery happens mainly during discharging and recharging methods and in the discharge process it is explained as follows.
When the loads are connected across the plates the sulfuric acid again breaks into positive ions 2H and negative ions SO 4.
But sulfation builds up and causes problems when. PbO 2 s HSO 4 aq 3H 3 O aq 2e PbSO 4 s 5H 2 O l reduction Lead sulfate is formed at both the electrodes. 2e-6 M H 2 SO 4 PbIVO 2 HSO 4- 3H 2e- PbIISO 4 2H 2 O HSO 4-HSO 4-Rxn Zone Rxn Zone. P b O 2 P b 2 H 2 S O 4 c h a r g e d i s c h a r g e 2 P b S O 4 2 H 2 O.
