In traditional "lead-acid" batteries, the electrodes are lead and lead (IV) oxide. During discharge, both electrodes dissolve in the strong acid electrolyte to form dissolved lead (II) cations. During recharge, these reactions are reversed. Other battery types, with a longer rechargeable life are used for hybrid electric-gasoline cars.
Lead
electrodes
it will be useless to use 3 electrodes. IT IS WASTE OF MONEY.Two , three or four electrodes can be used but it only increases the rate of reaction.
lead
A voltage of 12 V - as used in car batteries - is not particularly dangerous. You can even touch the electrodes, though I suggest not to touch BOTH electrodes at once.
Lead is used for - ballast keel of sailboats - in scuba diving weight belts - in small arms ammunition and shotgun pellets - in electrodes in the lead-acid batteries - in car batteries - in glazing bars for stained glass or other multi-lit windows
Lead.
they get recycle
Batteries can be classified in two waysPrimary Cell- Primary cell is a battery that is designed to be used once after that it can't be recharged with electricity examples are - AAA Cell (carbon Zinc battery) used in wall clocks,wrist watches etc.Secondary cell- Secondary cell is a battery which can be recharged multiple times with electricity such batteries are- Ni-cad battery, Li-ion battery(used in mobile phones)lead acid battery -used for Back up in homes and office etc.
potential difference between electrodes
potential difference between electrodes
potential difference between electrodes