In order to know the difference between pure electric vehicles and hydrogen vehicles, we must first figure out what is a pure electric vehicle? What is a hydrogen car? Knowing what they're made of and how they work, you can see the difference and the difference.
Pure electric vehicles, as the name suggests, use electricity to drive the wheels to drive the body forward. To put it simply, gasoline vehicles use gasoline as fuel, inject gasoline and obtain air in the cylinder of the engine after mixed compression combustion, produce a chemical reaction to release gas and heat energy, push the piston to work, to drive the wheel forward. There is an important knowledge in this, that is, the kinetic energy that drives the wheels forward is from the chemical energy generated by the mixture of gasoline and air combustion, that is, the force, with the force, the vehicle can be driven.
The pure electric vehicle is just to replace the gasoline fuel with electricity, similarly, if only electricity, it is not possible, because it takes force to drive the vehicle forward, electricity in our impression is used for lighting, showing no output, so at this time you need to have an engine similar to the gasoline car inside, that is, drive the motor, and convert the electric energy of the battery. Drive the wheels either by transmission or directly. So pure electric vehicles not only have batteries, but also drive motors.
Hydrogen fuel vehicles also need to refer to the gas hydrogen as a fuel combined with oxygen to produce electricity and water, the principle of hydrogen fuel cells is to input hydrogen into the fuel cell, the hydrogen atom electrons are blocked by proton exchange membrane, through the external circuit from the negative electrode to the positive electrode, become electric energy to drive the motor; The protons can be expelled through the proton exchange membrane and oxidized into a pure water mist.
Because hydrogen is an inexhaustible source of energy on Earth, when driving a car, it emits only water vapor, which is truly zero emissions. Therefore, hydrogen fuel vehicles are welcomed by car companies in various countries, such as Toyota, BMW and Mercedes, etc., have developed hydrogen fuel vehicles. Whether it is a pure electric car or a hydrogen car, they all need "fuel". In fact, you can see that whether it is a gasoline car, a pure electric car or a hydrogen fuel car, they all need to have an original fuel to chemically react with certain factors to generate force to drive the vehicle.
Both pure electric vehicles and hydrogen fuel vehicles belong to new energy vehicles. As we all know, when the vehicle carries more fuel, the more mileage the vehicle can travel, pure electric vehicles and hydrogen fuel vehicles are the same, they can not produce a constant supply of fuel, for example, pure electric vehicles need external power to charge after the battery power is used up, while hydrogen fuel vehicles need to obtain hydrogen fuel. Pure electric cars have range anxiety, while hydrogen cars do not.
Therefore, this triggered the range of anxiety, the range of pure electric vehicles sold in China is generally more than 500 kilometers, this data is also good, but the range of pure electric vehicles is extremely vulnerable to environmental temperature, road conditions, high-speed and other effects, these factors will make the original range greatly reduced, causing range anxiety. Some people will say, this is nothing, the electricity is used up to find charging pile charging is not on the line? Indeed, when you run out of electricity, recharging it is like going to the gas station to fill up your gasoline car.
The charging pile used by pure electric vehicles does not have the advantage of popularity, according to the current domestic mainstream charging pile charging speed, from 20% of the electricity full to 80% of the electricity generally takes 30 minutes, charging to 100% how to say it has to go up 40 minutes, which also has to be done in a very ideal situation. In addition, there is also a problem about the charging pile, the current number of domestic charging piles is still quite small, and the lack of special maintenance, it is very easy to encounter damage to the charging pile, if you do not plan the route outside, then it is likely that the pure electric vehicle you drive will put you on the road.
Therefore, pure electric vehicles are slow in charging time, and charging is not convenient. Hydrogen-fueled vehicles are fueled by hydrogen, which can be produced in large quantities from electrolytic water and coal gasification. Among them, electrolytic water is a very reliable choice, because the most is water on the earth, more than 70% of the earth is covered by water, coupled with hydrogen fuel vehicles emissions are water gas, zero pollution to the environment, therefore, hydrogen fuel vehicles seem to have broad application prospects.
The hydrogen production cost of hydrogen fuel vehicles is high, and it is difficult to obtain and popularize, but the hydrogen refueling time is short and the driving range is long. In fact, the method of hydrogen production by electrolytic water is particularly expensive, uneconomical and cannot be popularized in large numbers, and requires a lot of other resources, and the safe storage and transportation of hydrogen is also worth discussing. Pure electric cars, by contrast, just need to be recharged.
In terms of charging speed, compared with pure electric vehicles, hydrogen fuel vehicles have short refueling time and long driving range. According to relevant data, the average refueling time of each urban logistics vehicle in the hydrogenation station is 5 minutes, which is almost the same as the refueling time of ordinary fuel vehicles, and the endurance capacity after filling with hydrogen can reach 1000 kilometers, fully meeting the needs of urban logistics vehicles.
The difference between pure electric vehicles and hydrogen fuel vehicles mainly lies in the rapid popularization of one, and the lack of large-scale cheap access to hydrogen production technology and the safety of storage and transportation. In addition, when the cost of hydrogen production of hydrogen fuel vehicles can be greatly reduced and popularized, then hydrogen fuel vehicles will not have a range anxiety compared to pure electric vehicles. Last question, why do some people say that pure electric vehicles are not new energy? What is new energy? New energy is to have a "new" word, and pure electric vehicles are electricity, electricity is not a new thing.