LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volvo >> 2004 >> V40 Base >> Repair and Diagnosis (Single Page) >> Electrical >> Charging Systems >> Design And Function - Miscellaneous Systems >> Battery (All) >> Terminology >> Active material
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Active material

The active material consists of lead oxide in the positive plates and porous lead in the negative plates. The active materials react with the sulfuric acid in the electrolyte during charging and discharging according to the following chemical reaction:

PbO2 + Pb + 2 H2 SO4 = 2 PbSO4 + 2 H2 O