What is the lead-acid battery works?

A lead-acid battery is the most widely used cell, which lead to the negative electrode of spongy lead dioxide as a positive electrode, these two substances we called the active substance with an aqueous Three wheel bikes solution of sulfuric acid as the electrolyte, which participate in the battery electrochemical reaction.
Chemical reaction follows the principle of lead-acid batteries
Negative reaction: Pb + HSO4-PbSO4 + H + +2 e
Cathode reaction: PbO2 +2 e + HSO4-+3 H + PbSO4 +2 H2O
Electrode reaction: PbO 2 +2 H + +2 HSO 4 - + Pb 2Pb 2 SO 4 +2 H 2 O
The state of charge and discharge status: You can see from the reaction principle, at the time of discharge, both positive and negative material with sulfuric acid electrolyte lead sulfate reaction, so called "double-sulfation reaction." Under normal circumstances, lead sulfate generated loose structure, and the crystals are very small, very high Electric Bicycle electrochemical activity, such activity a high lead sulfate can be regenerated lead dioxide positive electrode and the negative electrode during charging at a current action the spongy lead. By this stable reversible process, and the battery power to achieve the release of stored energy effects.