Advantages and Disadvantages of Pure Electric Vehicles.

advantage:
(1) Zero emissions. Pure electric vehicles use electric energy, emit no exhaust gas while driving, and do not pollute the environment. [10]
(2) High energy utilization rate. Studies have shown that if the same crude oil is crudely refined, sent to a power plant to generate electricity, charged into a battery, and then used to drive a car, its energy utilization efficiency is higher than that of refining it into gasoline and then using a gasoline engine to drive the car.
(3) Simple structure. Because it uses a single electric energy source, it eliminates the need for a fuel tank, engine, transmission, cooling system and exhaust system. Compared with the internal combustion gasoline engine power system of traditional automobiles, its structure is greatly simplified.
(4) Low noise. There is little vibration and noise during driving, and it is very quiet inside and outside the cabin.
(5) Wide range of raw materials. The electricity used can be obtained from a variety of primary energy sources, such as coal, nuclear energy, hydraulic power, etc., which relieves people’s worries about the depletion of oil resources.
(6) Shift peaks and fill valleys. For power generation enterprises and power companies, the batteries of electric vehicles can be charged at night using cheap “off-peak power” from the power grid, which can smooth the peak and valley differences of the power grid and enable full utilization of power generation equipment day and night, thus greatly improving economic benefits.
shortcoming:
(1) The driving range is short. The mileage per charge is short, and the driving range of a pure electric vehicle equipped with a lead-acid battery that is the same quality as gasoline is only 1/70 of that of a fuel vehicle.
(2) High cost. The main reason for the high cost is that batteries and motor controllers are expensive.
(3) Long charging time. It takes 6 to 10 hours to complete one charge. Although there are fast charging equipment and high current charging, it usually takes 10 to 20 minutes to charge to about 70% of the battery. However, fast charging damages the service life of the battery.
(4) Maintenance costs are high. The maintenance cost of pure electric vehicles is relatively high, and there are currently no authorized service stations.
(5) The battery life is short. At present, battery technology needs to be innovated. The life of power batteries is short and they need to be replaced after a few years.
fuel cell vehicle
Compared with traditional cars, fuel cell vehicles have the following advantages:
1. Zero emissions or nearly zero emissions. Fuel cells use electrochemical methods to combine hydrogen and oxygen to directly generate electricity and heat and discharge water without