From a scientific standpoint, the largest challenge facing today’s electric cars is the energy density of batteries used. The batteries are both massive and heavy, and as a result have significant impacts on electric transportation feasibility depending on the scenario.
source/image(PrtSc): Engineering Explained
This video analyzes today’s batteries energy density, as well as the efficiency differences associated between gasoline vehicles and electric vehicles.
Even when accounting for efficiency, the gap between electric and gasoline energy densities is quite large.
To further illustrate this point, we’ll assess the feasibility of an electric powered semi-truck, and the weight of the battery required in order for the vehicle to have a range of 500 miles. The results will SHOCK you. Maybe not; that’s just a bad joke. But you might learn something! Have a watch.