Why are batteries needed?

Nowadays, the demand for safe equipment capable of storing large amounts of usable energy has increased in the world. In addition to this, the importance of using electrical cars in an effort to protect the natural habitat and guard against pollution, is increasing. Batteries provide electrical cars needed energy which they can utilize when the car is being driven. Batteries store electrical energy as chemical energy.  Chemical energy is transformed into electrical energy when the car is driven.   The battery sector will continue  to develop more efficient batteries in the futrure.