Question

what is secondary battery? write the mechanism of recharging of lead storage battery with the help of chemical reaction​

Answer 1

Recharging of a discharged lead storage cell/battery. In the discharged state, the lead (Pb) of the anode, and lead dioxide (PbO2) of the cathode are completely converted to lead sulphate (PbSO4). The water produced in the reaction dilutes the sulphuric acid.