Electric vehicles (EVs) are propelled by an electric motor (or motors) powered by rechargeable battery packs. Electric motors have several advantages over internal combustion engines (ICEs)
Electric motors convert 75% of the chemical energy from the batteries to power the wheel, whereas ICEs only convert 20% of the energy stored in gasoline.
EVs emit no tailpipe pollutants, although the power plant producing the electricity may emit them.
Electric motors provide quiet, smooth operation and stronger acceleration and require less maintenance than ICEs.
Reduce energy dependence
Electricity is a domestic energy source. Currently researchers are working on improved battery technologies to increase driving range and decrease recharging time, weight, and cost.