The positive plate of a (charged) lead/acid battery.
The same materials that all other cars are made of. Steel, aluminum. copper, plastic, zinc, rubber, glass, & lead in the battery. Click the link.
It is lead. That is why such batteries are called lead-acid battery. The chemical make up of the plates in a car battery changes dependant on the amount of charge in the battery. Fully Charged is + plate = lead peroxide or PbO2, -plate = spongy lead or Pb Discharge both the + plate and - plate are Lead Sulphate or PbSO4 Electrolyte is made of Sulphuric acid and distilled water. H2SO4 SDS
Most battery terminals are made of lead.
In a car battery, the terminals are the heavy lead posts sticking up from the top of the battery, one labeled positive and one negative. Car batteries are of the lead-acid design, in which the anode (positive side) and cathode (negative side) are made of lead and lead dioxide, and as current leaves the battery through the anode both electrodes (anode and cathode) are chemically converted to lead sulphate. Cars use an alternator to send some of the current from the battery back to the anode, which partially converts the lead sulphate back into lead and lead dioxide, thus greatly lengthening the life of the battery.
Lead
A flooded lead acid battery, such as an automotive battery.
A car battery is made of three components, lead, sulfuric acid and water, over time the acid erodes the lead and the lead is the main charging part of a battery that is why vehicle batteries are called lead-acid
Lead acid
About 60% of the weight of an automotive-type lead-acid battery rated around 60 Ah (8.7 kg of a 14.5 kg battery) is lead or internal parts made of lead; the balance is electrolyte, separators, and the case. (Wikipedia)
Lead Calcium battery is the same as lead acid battery. In the garden varieties of lead acid batteries the positive and negative plates are made of lead with a tiny percentage of antimony. Batteries with lead calcium alloy plates reduce problems of overcharging, water loss, outgassing and self-discharge and this is usually found in maintenance-free batteries.
Peroxide
China has made polly pockets, toy cars, and more toys made of lead based paint.