Regarding modern NEXO and domestic hydrogen energy, several of your most concerned questions are here

When it comes to hydrogen energy, many people still have a vague concept of it, and it is not widespread in the civilian field. However, after this year's Winter Olympics, many people have a preliminary understanding of it. In fact, hydrogen fuel cell vehicles have been very popular in many countries and regions, also known as one of the most clean energy, is one of the major trends in the development of new energy in the future.

On March 23 this year, the National Development and Reform Commission issued the "Medium- and Long-term Plan for the Development of hydrogen energy industry (2021-2035)", which stated that it would focus on the development of hydrogen energy industry in the next 15 years, which also means that hydrogen energy has officially entered the "national team". So for such a well-received, so that in the low-carbon environmental protection of the global value of energy, in the car, what are the advantages and disadvantages? Today, we also found a modern NEXO hydrogen fuel cell vehicle, as the first batch of domestic test drive media, we will also make a few questions for everyone to pay attention to one by one.

1, the principle of vehicle kinetic energy, do not be confused with natural gas!

Because hydrogen fuel cell vehicles appeared relatively late, many people do not understand the energy principle, and even some netizens speculate that it is related to the principle of natural gas vehicles, but it is necessary to know that these are two completely different concepts.

The modern NEXO works by passing hydrogen from a hydrogen storage tank into a fuel cell stack for combustion, and the electrical energy generated by the fuel cell stack directly drives the motor and can also charge the power battery. At the same time, the power battery capacity is 1.56kWh, which can also provide power to the drive motor.

Therefore, for the drive of the vehicle, it is completely powered by the motor. Hydrogen fuel simply relies on combustion to provide electricity to vehicles.

2. What is the driving experience?

As mentioned earlier, the driving force of the vehicle is completely dependent on the motor, which also allows the NEXO to have a driving experience that is very close to that of an electric vehicle. The fast response and smooth power are its advantages, and there is no obvious drag feeling of some electric vehicle energy recovery.

However, it is true that the NEXO's electric motor has 395 Nm, and driving in the city is also very easy, but when you accelerate the pedal to the end and want to accelerate sharply, you can still feel a slight weakness in power, which is certainly no problem to use, but it does not bring the powerful performance of electric vehicles.

One thing to be commended is that when the NEXO is driving normally, almost no sound from the fuel cell stack and the electric motor can be heard in the car, and even when accelerating sharply, the sound of the electric motor is very small. At this time, some hydrogen burning sounds can also be heard, but they are also comparable to the sound of fuel engine idling in the senses. So this car can drive very quietly, because from the root of the problem to solve the noise of the power system.

In addition, the texture of the NEXO's chassis also brought me a deep impression, compared to the previous Korean cars to have a stronger sense of high-grade, filter vibration is very crisp, and there is no excess fine vibration, but also in line with the chassis texture of its medium-sized SUV. So overall, in terms of driving, Hyundai NEXO is still very versatile.

3. Where to go for hydrogenation? How much battery life?

After talking about driving, let's talk about the hydrogenation problem that everyone cares about. Taking our location in Beijing as an example, there are currently 3 hydrogen refueling stations, of which the hydrogen refueling station in Changping is not open to the public, and only two hydrogen refueling stations in Yanqing and Daxing are open. Due to the distance, we choose to hydrogen refuel at the Daxing hydrogen refueling station.

Hyundai NEXO designs a hydrogen pressure of 700 bar, which can be filled with 3.99 kg of hydrogen at full pressure, and the comprehensive endurance can reach 596km. However, due to the hydrogen refueling station in Daxing, the hydrogenation pressure can only reach 350 bar, so it can only fill half of the hydrogen fuel with the design capacity, and the endurance can reach 290km+ when it is full, that is, about half of the comprehensive endurance.

At present, the price of hydrogenation is 50 yuan / kg, and it costs nearly 100 yuan to fill up. Think about it, 100 yuan can run close to 300km, this cost is not quite fragrant?

4. Is it safe for hydrogen to be released in the car?

Compressed and liquefied hydrogen has previously been classified as explosives and is also a dangerous chemical, so it is worried about safety by many people, and this aspect is mainly manifested in vehicle collision safety.

The robustness of the hydrogen tank is one of the factors, and the modern NEXO hydrogen storage tank is made of carbon fiber, which can be 10 times stronger than steel, and adds a device to cushion the collision force and a special coating technology that withstands the flame for a long time. This also makes NEXO the world's first hydrogen fuel cell vehicle to obtain euroNCAP's highest five-star safety rating, so the strength of the hydrogen storage tank naturally does not have to worry, even if it is rolled by a large truck, it will not easily cause the hydrogen storage tank to rupture.

Secondly, even if the force majeure causes the hydrogen storage tank to rupture and leak, the hydrogen will volatilize faster than gasoline, and due to the characteristics of hydrogen itself, even if it is compared to ordinary natural gas, it will rise faster, so it will not converge. If it is not ignited, it quickly volatilizes away. If ignited, the flame is also mainly burned upwards and does not explode instantaneously. Therefore, for the safety of hydrogen in vehicles, there is no need to worry too much, after all, gasoline vehicles collide, it may also burn, not to mention that the design of modern hydrogen storage tanks has been quite mature.

5. Why is hydrogen energy not popular? What are the current bottlenecks?

Having said all this, many small partners must have found that hydrogen is really good, environmentally friendly, low cost, but why is it not popularized, and the development is slower than fuel, pure electricity, and hybridization?

This has to mention the cost, due to the particularity of hydrogen, so the transportation and storage must have a special hydrogen storage tank, which is very demanding on the material, so there is also a rise in costs, whether it is transportation and storage, compared to fuel, the cost is much higher.

Secondly, the hydrogen storage tank will also have a hydrogen loss of 0.12%-0.24% per day, which invisibly increases the cost. In addition, accessories such as hydrogen refueling guns, the current domestic technology also has a relatively high bottleneck, the cost of imports is also very high.

Therefore, in general, the bottleneck of hydrogen energy development is summarized in two words - cost. This also leads to the fact that there are currently very few hydrogen refueling stations, and there is still a situation where the pressure is not high.

However, it is believed that under the promotion of the "Medium- and Long-term Planning for the Development of Hydrogen Energy Industry", the cost of hydrogen energy in China will also be reduced accordingly, and the infrastructure of hydrogen refueling stations will also join the plan on a large scale.

6. Why is hydrogen fuel a real new energy source?

Earlier talked about the environmental protection of hydrogen energy, then let's talk about why it is a real new energy source, why it will become a major trend in the future.

First of all, the principle of hydrogen manufacturing, mainly divided into two types, obtained through fossil fuels and electrolyzed water. At this stage, hydrogen is still produced through fossil fuels, and this part of the manufacturing will produce greenhouse gases, so it is not really environmentally friendly.

What is really environmentally friendly is the production of hydrogen by electrolyzing water, which produces zero emissions, and the water generated after combustion is also zero emissions. In the future, with the recommendation of technology, it is believed that electrolyzed water will gradually become the mainstream.

Compared with the future battery recycling of pure electric vehicles, hydrogen fuel is undoubtedly a cleaner energy source, and hydrogen fuel cell vehicles are more convenient in replenishing energy. Now just wait for the improvement of technology, hydrogen energy can truly enter the mainstream.

7. Interpretation of the highlights in the car, post-market pricing prediction!

Finally, let's talk about the modern NEXO that everyone cares about returns to the product itself, the interior design I personally think is a highlight, the interior texture is very good, the materials are also very solid, the design is also very layered, in short, it can give people a look very advanced at a glance. The central control T-shaped area is also designed below a large number of physical buttons, which in the era full of large screens, absolutely can be regarded as a clear stream, the physical button texture is good, for the traditional I still like, but this is also a benevolent person to see the wisdom, after all, the big screen has a lot of supporters.

The interface design of the car machine system is also good, and the gradient transition of the main interface is very natural, but in terms of intelligence, compared with the domestic models that have been equipped with cooperation with Baidu, it is still worse.

Finally, the price of hyundai NEXO, which has not yet been officially listed, but its overseas version of the model is priced at $60,000, equivalent to about 300,000 yuan in yuan. I don't know if it is this price after listing, if the price is about 300,000 yuan, will you pay for it?

Write at the end

The development of hydrogen energy in domestic passenger use has reached a critical period and is also an important stage. At present, the domestic market is known to be listed models include Hyundai NEXO and Toyota Mirai, Hyundai NEXO does not know whether it will take the lead in listing, but it will be one of the top 2, which also represents the determination of the two companies to promote the development of domestic hydrogen energy. Not only that, domestic car companies such as the Great Wall are also developing their own hydrogen energy technology.

For hydrogen energy, we should have stronger confidence at present and look forward to the advent of the era of hydrogen energy.