Question

When the chemicals in the electric cell are used up, the electric cell stops producing electricity. The electric cell is then replaced with a new one. In the case of rechargeable batteries (such – as the type used in mobile phones, cameras, and inverters), they are used again and again. How?

Answer 1

Rechargeable cells and the electric cells

1. The working principle for the electric cells and the rechargeable batteries are similar.
2. Both the electric cells and the rechargeable cells produce electricity through an electrochemical reaction.
3. The involvement of the cathode, anode, and electrolytes can be seen in both cells.
4. However, the reaction that takes place in rechargeable cells is reversible in nature.
5. When electrical energy is applied to the rechargeable cell from outside, the electron flow occurs in the opposite direction than during the discharge.
6. Due to the positive-to-negative electron flow, the charge of the cell is restored, and can be reused again and again.