An electric car is an automobile that uses an electric motor as its primary source of propulsion. Electric vehicles (EVs) use electrical energy, which is stored in rechargeable batteries. One of the primary benefits of an EV is the lack of tailpipe emissions.

With ever-increasing concerns on energy efficiency, energy diversification, and environmental protection, electric vehicles (EVs) have launched revenge for road transportation. Among those multidisciplinary EV technologies, energy sources are the key technology for possible commercialization and popularization of EVs.