Technical info - Gridcorrosie

Grid corrosion

The electrolyte inside a battery is not only in contact with the active mass at the plate, but also with the uncovered parts of the grid itself.

Grid corrosion is a normal phenomenon in a battery where the lead of the positive grid is converted into lead dioxide. As a result of this conversion the electrical conductivity and mechanical strength of the gradually decline until the plates collapse. This is an inevitable process which have been taken into account in the design.

Excessive grid corrosion is typically the result of structural overcharging or by means of too high charging voltage too high or too high a load factor. Also temperature is important. High temperatures will accelerate grid corrosion, while a moderate temperature will prolong service life.