Translations:Fonctionnement, entretien et régénération de batteries au plomb/8/en

• The electrodes are composed of a grid on which is deposited a porous active material: lead (Pb) on the negative electrode and lead dioxide (PbO2) on the positive electrode. The grid collects the current and also serves as a mechanical support for the active material. • The electrolyte is a dilute solution of sulfuric acid in which the electrodes are immersed. It can be in liquid, gel or absorbed form in fiberglass felts, depending on the type of battery.