Pure battery life will exceed 700km. Is mileage anxiety still a problem? By what radical cure?

Electrification has become the general trend. More and more traditional car companies began to increase the market of new energy vehicles with fast layout, and invested funds and human resources in the research and development of electric vehicles. At the same time, a number of new forces have emerged, such as Tesla and Weilai. They even surpassed traditional car companies in pure electric vehicles.

Engineers from various traditional Japanese car companies were in Tesla Model before? 3 Dismantled, they think that Toyota and Volkswagen will have to wait until at least 2025 if they want to catch up with Tesla's electric core technology. Recently, the CEO of Volkswagen has also changed his mind: the goal of electrification has changed from surpassing Tesla to trying to catch up. It can be seen that Tesla's strength is good and its high sales volume is obvious to all. It has won the global pure electric vehicle sales champion for many times, attracting consumers. In addition to the industry-leading autopilot system, there is also cruising range called the first demand.

The average level is above 400km, and these models have exceeded 600km.

In 20 18, the best-selling pure electric vehicle in China, Beiqi New Energy EC series, has a cruising range of only 162km. Among the top ten models, the EU series with the longest cruising range is only 460km. At this time, the industry average level is about 300km. By 20 19, BAIC new energy EU series won the championship with a battery life of 502km, and BYD Tang, which has the longest battery life in the top ten, even reached 520km. At this time, the industry has reached an average of about 400km.

In addition to these top-ranked models in the overall list of pure electric vehicles, the endurance of the best in various market segments has also been significantly improved. For example, the best-selling Weimar EX5 has a cruising range of 520km. In addition, there are also many models with a battery life of more than 600km on the market.

Among them, Tesla is one of the first brands with a cruising range of more than 600km. What is its model? The S-long battery life version can reach 660km, and the high-performance version can also reach 650km, while the independent brand GAC New Energy Aion? The longest battery life of LX can reach 650km, and that of Aichi U5 can also reach 623km, while most other popular brands such as BYD and Weilai have exceeded 500km, only one step away from 600km.

High-density lithium batteries and many car companies officially announced that they are expected to last 700km.

As more and more car companies touch the threshold of 600km, some production models have also been launched. Some people may be curious, how far are we from 700km? The core that affects the cruising range is the power battery. The higher the density, the longer the cruising range, but the problem is that it is difficult to improve the density. Every breakthrough means overcoming many problems.

Last year, Contemporary Ampere Technology Co., Ltd. took the lead in developing a battery sample with a specific energy of 304Wh/kg. After grouping, the energy density can also reach about 2 10 Wh/kg and the endurance can reach 650km. The energy density of the 8 1 1 high-performance battery system mounted on LX is only 180Wh/kg, indicating that once this battery is mass-produced, it is likely that its battery life will exceed 700km, which means that from the perspective of power battery technology, the battery life of pure electric vehicles will probably exceed 700km, and the time will not be too long.

In addition to the breakthrough of power battery technology, many car companies have also brought a glimmer of light. It is understood that there will be four models with a battery life of more than 700km this year. It is reported that in March this year, the Weimar 7 Series based on the new platform will be officially released, and the new car will be equipped? L3 automatic driving assistance and 5G technology, with a cruising range of over 700 kilometers. It is expected to be officially launched and delivered in the first half of 20021.

The second model is a brand-new pure electric vehicle, which will be officially launched this year. It is based on the PMA pure electric platform of Geely Volvo Group, and its cruising range will reach more than 700 kilometers. The new car has not been officially named, and its internal code is DC1E. Judging from the spy photos on the Internet, it should be a crossover model, which is expected to be released in the third quarter.

The third and fourth models are all foreign automobile brands, and Tesla, as a pure electric vehicle giant, is naturally among them. Recently, it was reported that some new models appeared in Tesla's recently updated system software. 3 code, code display model? 3 will be equipped with a battery of 100kWh, and at the same time join the rage mode. Current imported model? The battery capacity version and battery life are 75kWh and 595km respectively, so it seems that the battery density of the new car will increase by 25%, and the battery life over 700km should be no problem.

The fourth mode should not be unfamiliar. EQC, the first pure electric vehicle of Mercedes-Benz, has landed in the domestic market, but its endurance is only 4 15km, which is only a little higher than the average level. In addition, Mercedes-Benz also released EQV and EQ? It is reported that Mercedes-Benz's brand-new pure electric vehicle EQS will also be unveiled this year. The new car is expected to be equipped with 150kWh battery pack, and the maximum cruising range may reach 700km. It only takes 4.5s to accelerate from 0 to 0~ 100km.

Battery life is getting longer and longer. Is "mileage anxiety" still a problem?

No matter from the power battery technology or the new car that will be released soon, we are getting closer and closer to the cruising range of more than 700km, but the increase of cruising range will also bring many problems, the most obvious of which is safety. Although ternary lithium battery has high density and good endurance, it also has the disadvantage of low ignition point, which is easy to get out of control and the worst result is spontaneous combustion. Therefore, while improving the density, the matching of safety technologies is also very important.

In addition, the improvement of cruising range cannot completely solve the "mileage anxiety". For example, if the charging time is long, it usually takes about 5~ 10 minutes to refuel a fuel vehicle, even for Guangxin Aion with a cruising range of 5 10km. S fast charge takes 0.57 hours, and it can only be charged to 80%. It takes more than 8 hours to charge slowly, and the battery life is 660km. S needs 1 hour for fast charging and1hour for slow charging. Therefore, with the improvement of battery life, the increase of charging time is also an important issue. Not everyone spends a lot of time on charging.

In addition, we should also consider supporting facilities, that is, charging stations. At present, the popularity of charging stations in first-tier cities such as Beijing and Shanghai is good, but it is another scene in second-and third-tier cities. Secondly, the quantity is not enough, the management is not standardized, and fuel vehicles occupy charging parking spaces from time to time. At the same time, there is another problem to consider. After all, cars spend more time at home, so you need to install charging piles in your parking space. What if there is no parking space? In a big city with an inch of land, even a parking space is not cheap, not to mention that some old communities are not even allowed to install charging piles.

Write at the end:

To sum up, it is very likely that the cruising range of pure electric vehicles will be increased to 700km in the future, and there is no need to wait too long. However, cruising range is only one of the reasons for "mileage anxiety", and charging speed and charging facility density are also very important reasons. To cure the problem, we must solve the problem systematically. It is obviously not enough to persuade consumers to give up fuel vehicles just by increasing the cruising range.

Therefore, "mileage anxiety" should only be the shortest piece of wood, and pure electric still has a long way to go!

This article comes from car home, the author of the car manufacturer, and does not represent car home's position.