what are the different types of electric cells?

Dear Student ,

An electric cell is a device that converts chemical energy to electrical energy. A simple electric cell is made up of an electrolyte and two electrodes. The electrolyte is a conductive solution containing anions (negatively charged ions) which moves towards the anode (negative electrode)and cations (positively charged ions) moves towards the cathode (positive electrode). So, we have an excess of electrons in the anode (which is the negative terminal of the cell) and a deficiency of electrons in the cathode (which is the positive terminal of the cell).

The primary cells are designed to be used at once only and they can not be recharged because, these are electrochemical cell in which the chemical reaction occurs of irreversible nature and so when the reacting species all react and the material is finished the cell becomes useless and can not be further recharged. For ex: dry cell, mercury cell etc.

A secondary cell or battery is one that can be electrically recharged after use to their original pre-discharge condition, by passing current through the circuit in the opposite direction to the current during discharge. It comprises of one or more electrochemical cells and is a type of energy accumulator. Several different combinations of chemicals are used as Lead-acid Ni-Cd, Li-ion etc. and some common example of secondary cells are; AA size batteries used in torches, remote controllers, Nokia and other mobile phone batteries etc.
Regards