CONCEPT:
- The battery has two terminals positive and negative and its positive terminal is the cathode and its negative terminal is the anode.
- It works on the principle of Electrochemical Reaction.
- Italian physicist Alessandro Volta built and described the first electrochemical battery, the voltaic pile, in the year 1800.
- The lead-acid batteries used in vehicles and lithium-ion batteries used for portable electronics such as laptops and mobile phones.
EXPLANATION:
- A battery converts chemical energy into electrical energy. So option 3 is correct.


