For the new energy direction of passenger cars, the current vigorous development is the pure electric vehicles we are familiar with, and we can also see that in 2022, there are more brands and more technologies to join this "future promising" battlefield, but in addition to passenger cars, there are many product lines that need to be laid out with new energy.
A few days ago, the Inner Mongolia Autonomous Region Party Committee and the government held in Ordos "to promote the construction of high-quality development of major projects mobilization conference", in the zero carbon industrial park, FAW liberation and Vision Power cooperation, the launch of cooperation in the power exchange project has attracted much attention, at present, the project has completed two smart heavy-duty truck replacement power station, and successfully completed the liberation of J6P models supporting the new generation of vision power, heavy truck battery system power replacement demonstration, I believe see here, many officials will also have doubts, Heavy-duty truck models and our daily household scooter passenger cars are completely different, is it feasible to replace electricity with heavy trucks, and what is the ultimate way for heavy-duty truck new energy?
Is it feasible to replace the power of a heavy truck?
Heavy trucks compared to traditional family cars, more time in the fixed line of the highway, to commercial logistics and transportation as the main function, for the mileage of course also has higher requirements, family cars of 600-700km endurance, for heavy trucks, can only be pediatric general, can not meet the minimum requirements of long-distance transportation.
In fact, if it is feasible to ask whether it is feasible to change the power supply, it is better to change the way of thinking and think about the pure electric route of the heavy truck.
Taking our common family cars as an example, the self-weight of pure electric models is 2-2.5 tons, the common battery size is 75kWh-100kWh, and the endurance can generally be achieved at 600-700km, and in the net weight system, the battery weight occupies a very large weight ratio, resulting in the weight of the car will invisibly increase.
Electric vehicle endurance = battery power / electric vehicle power consumption, want to increase the range, either increase the battery power, or reduce the electric vehicle power consumption, if you blindly increase the battery power, of course, it will increase the battery weight, in the case of the heavier the vehicle weight, the power consumption will also increase, so, many models blindly use a larger battery to increase the endurance of electric vehicles, in fact, it is not a very effective way, want to increase the endurance of electric vehicles, energy density is the biggest breakthrough.
As mentioned earlier, the amount of power, battery weight and power consumption are proportional, if you want to increase the endurance of electric vehicles, the best way is to ensure that the battery weight and volume are unchanged, increase the battery power, that is, we are familiar with the energy density to do more, will ensure that the power consumption remains unchanged, the power increases, and the mileage is increased.
Through the previous calculation, we learned that the battery weight will affect the vehicle driving performance, and if the heavy truck is installed to match the corresponding size of the battery power, it will increase the heavy truck's own weight by a large margin, in the case of battery power increase, weight also increases, it is impossible to guarantee that the heavy truck has a good endurance and performance performance, on the contrary, the giant battery has more difficult technical barriers in multiple dimensions such as heat dissipation, PACK, safety, etc., so the heavy truck pure electric is not a very reasonable choice.
Although the heavy truck power exchange is more reliable than charging, but the pure electric route, it is true that there is no better help and development for the future prospects of the heavy truck, so the author believes that the heavy truck pure electric route is not the ultimate future, so the power exchange is not a project that the heavy truck should consider.
Speaking of which, there are bound to be many consumers who wonder, what about transportation and logistics in the future?
What is the ultimate way of heavy-duty truck new energy?
Now open the major media platforms, whether it is short video or graphic platform, etc., in the discussion of new energy, the "keyboard confrontation" in the comment area is very interesting, each user has their own unique understanding, so in the development of new energy to the present, there are also many thinking confrontations, and in the discussion of new energy, there is a direction that many people think of as the ultimate way of new energy - hydrogen.
At the Beijing 2022 Winter Olympics, Toyota provided work vehicles for the Winter Olympics, and these work vehicles used hydrogen fuel cells to help the Beijing Winter Olympics build environmental protection, green and other dimensions of publicity, and hydrogen fuel cell vehicles, what is it?
Fuel cell is a kind of chemical battery, although lithium-ion batteries are also chemical batteries, but in the chemical reaction, the two are completely different; fuel cells convert the energy released by the chemical reaction of the substance into electrical energy, and the work needs to continuously supply it with a living substance - fuel oxidant. Because the fuel cell is to convert the energy released by the fuel through chemical reactions into electrical energy output, it is called a fuel cell.
The working principle of hydrogen fuel cells is to send hydrogen to the negative electrode of the fuel cell, through the action of a catalyst (currently the industry uses metal platinum) in one of the electrons in the hydrogen atom is separated, the hydrogen ion that loses the electron passes through the proton exchange membrane, reaches the positive electrode of the fuel cell, combines with the oxygen atoms in the air into water, and then discharges, which is the basic principle of hydrogen fuel cell work.
Hydrogen is the most abundant element in nature, which is also the reason why hydrogen ranks first in the periodic table, and in fuel cells, hydrogen finally reacts with oxygen atoms and combines into water, so it is truly carbon-free.
The hydrogen fuel cell, just very matching the heavy truck model, hydrogen energy replenishment speed is very fast, can be comparable to the refueling speed of our fuel vehicles, and, derived from the large battery weight burden without lithium ions, can also provide better driving conditions for heavy trucks, increase endurance, speed up the speed of energy replenishment, make heavy truck models more convenient, which is why the construction and development of multiple routes of new energy is an important purpose.
Although there are still many difficulties in the ecological construction of hydrogen energy, especially in the production of hydrogen, hydrogen transportation, hydrogen storage, hydrogenation and other multi-dimensional problems, but the heavy-duty truck model line is fixed, compared with the traditional family car, it is more convenient for the construction of heavy-duty truck hydrogen fuel, so the author believes that the ultimate way of heavy-duty truck new energy is hydrogen fuel heavy-duty truck models.
Write at the end
Don't see here, everyone thinks that pure electric vehicles can not be bought, to wait for a first-class hydrogen fuel, in fact, each model and use scenario, in the new energy development route, have their own unique route; the current pure electric vehicle model has developed to meet the needs of consumer cars and multi-scene car conditions, has been relatively very mature.
The construction of hydrogen fuel is more difficult than pure electricity ecology, so the author advises users, who are still struggling with new energy trends and choices, do not hesitate, pure electric vehicles are the optimal solution for the current new energy of passenger cars.