Write the CHMemistry of reCHMarging of lead storage battery highlighting all the materials that are involved during reCHMarging.

Explanation

A lead storage battery consists of anode of lead , cathode of a grid of lead packed with lead dioxide `(PbO_(2))` and 38% `H_(2) SO_(4)` solution as electrolyte . The following reactions occur when the battery is in use :

Overall reaction :
`Pb (s) + PbO_(2) (s) + 2 H_(2) SO_(4) (aq) to 2 Pb SO_(4) (s) + 2H_(2) O(l)`
On charging the battery , the reverse reaction takes place i.e., `PbSO_4` deposited on the electrodes is converted back into lead and `PbO_2` and `H_2 SO_4` in regenerated .