Chemical formula for battery transport wagon operation

The  Battery Transport Wagon is one of the batteries.Its function is to store limited electric energy and use it in a suitable place.Its working principle is to convert chemical energy into electric energy.It uses a lead plate filled with sponge lead as a negative electrode.The lead plate filled with lead dioxide is used as the positive electrode,and 1.28% of dilute sulfuric acid is used as the electrolyte.When charging,the electric energy is converted into chemical energy,and the chemical energy is converted into electric energy when discharging.When the Battery Transport Wagon is discharged,the metal lead is the negative electrode.Oxidation reaction occurs and is oxidized to lead sulfate;lead dioxide is a positive electrode,which undergoes a reduction reaction and is reduced to lead sulfate.When the battery is charged by direct current,the two poles respectively generate lead and lead dioxide.After the power is removed,it is restored.In the state before discharge,a chemical battery is formed.A lead battery is a battery that can be repeatedly charged and discharged,and is called a secondary battery.Its voltage is 2V,and three lead batteries are usually used in series,and the voltage is 6V.It is a battery pack with 6 [2] lead batteries connected in series to 12V.The lead storage battery should be supplemented with distilled water after a period of use to keep the electrolyte containing 22-28% dilute sulfuric acid.When discharging,the electrode reaction is:PbO2 + 4H+ + SO42 - + 2e- = PbSO4 + 2H2O Negative reaction:Pb + SO42- - 2e- = PbSO4 Total reaction:PbO2 + Pb + 2H2SO4 === 2PbSO4 + 2H2O (reaction to the right is discharge,reaction to the left is charge).