A grid-shaped current collector made of lead or a lead alloy.
Together with the active material adhering to it, it forms a plate in a battery. Apart from a grid, a current collector can have various other shapes.
The grid gives the active material support and also conducts the current to the outside. All grids with positive material form the positive pole when connected together, all grids with negative material form the negative pole.
Depending on the alloy from which this grid is made and how it is mechanically produced, e.g. rolled or twisted from wire, different battery properties result. These in turn influence, for example, whether a battery is particularly good at storing current, can be charged quickly or can deliver a lot of current very quickly (high cold-start performance).