Low cost, & high power to weight ratio.
Lead.
Normally Lithium Ion batteries or Lead-Acid batteries.
LEAD
No, car batteries use lead for both plates. When charged the positive plate becomes white lead oxide.
Lead is used in car batteries because it stores a charge which can be used to power car electrical systems and accesories
Lead (Pb) is commonly used in electrodes in car batteries as it forms lead-acid batteries, which are known for their reliability and low cost. Lead is a heavy metal that can store and release electrical energy efficiently in this application.
Lead
Lead.
The common, Lead-Acid car battery contains a lot of lead that can (and MUST) be recycled. Most of the Lead used for fabricating new car batteries comes from recycling. Car battery recycling is quite efficient and therefore, the poisonous lead is mostly kept from polluting the Earth, but some people ignore this and let used batteries go to landfills, which is a no-no!
Antimony - used with lead in in car batteries and in the manufacture of flameproofing compounds
It is used in lead-acid car batteries and used to be added to gasoline, to improve combustion (octane level).
Both plates are lead. Antimony is typically used to alloy with lead to make it structurally stronger.