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In recent years, new energy vehicles have developed rapidly under the guidance of national policies, and the growth of new energy vehicle sales also reflects the gradual recognition of products by consumers, but the new energy vehicle market is not yet mature. Especially in terms of driving range, more and less mileage has become a standard for consumers to buy cars.

According to media reports, Ouyang Minggao, academician of the Chinese Academy of Sciences and vice president of the China Electric vehicle Association, said at the 2021 China Electric vehicle 100 people Forum on January 16, "if someone tells you that this car can run 1000 kilometers." it can be fully charged for a few minutes, it's safe and the cost is low. In terms of current technology, he must be a liar. "

According to media analysis, Ouyang Minggao's remarks alluded to several car companies, namely, Xilai Automobile, Zhiji Automobile and GAC Ean, which have recently been publicly announced that their mileage can reach 1000km, especially GAC Ean, which is obviously in line with its newly released graphene-based super fast charging battery.

On January 9, Xilai released its 150kWh solid-state battery, a model with a range of up to 1000km. On January 13, SAIC Zhiji announced that its models would cooperate with Ningde Times, equipped with "silicon-doped lithium" batteries, with a maximum range of more than 1000 km. On January 15, a poster of GAC Ean said that its model with graphene-based super fast charging battery can be recharged 80% in 8 minutes, and the mileage can reach 1000km.

In fact, Ouyang Minggao does not target any of the car companies. At the meeting, Ouyang Minggao's original words were, "the second point I want to say is the innovation of battery materials. In fact, it is a thing that needs to rise abruptly based on accumulated strength and long-term efforts." Because we have to balance the contradictory performance indicators such as energy, life, fast charging, safety, cost, and so on-they are contradictory. If someone says that it can run 1000 kilometers and be fully charged for a few minutes, it is also very safe, and the cost is very low, you don't have to believe it, because it's impossible. In these areas, it should be said that there has been no major breakthrough in recent years. "

It can be seen that Ouyang Minggao mentioned that there are six conditions for "impossible" batteries: energy, life, fast charge, safety, cost, and time. After the media cut, there are only two conditions: energy and fast charging, and the other four are hidden, resulting in indirect misinterpretation.

Why is it GAC Ean? At the meeting, Zeng Yuqun, chairman of Ningde Times, said that Ningde era has developed an auxiliary power supply for 12V lithium batteries in the field of passenger cars, which has 80% less weight and 60% less volume than traditional lead-acid batteries, and can be maintenance-free for life. "the developed 48V and HEV battery packs can achieve a high discharge rate of 60C, the developed PHEV battery packs can achieve automatic energy recovery at a rate of more than 10C, and the developed BEV battery packs can achieve a range of more than 1000 kilometers, fast charging for 10 minutes, and a service life of 16 years and 2 million kilometers, basically solving consumers' process anxiety, charging anxiety and life anxiety."

The 150kWh solid-state battery was launched in the fourth quarter of 2022, which is still two years away, and it is not a problem for the ET7 to reach the 1000km.

GAC GROUP Chairman Zeng Qinghong said at the meeting that GAC graphene-based super fast-charging battery has now entered the stage of mass production and the first model is AION V, which is being tested in winter in Heihe and is initially scheduled for mass production in September 2021.

It can be seen that compared with Zhiji Automobile and Xilai Automobile, GAC Ean's 1000km service comes faster, coupled with the media's misstatement of academicians of the Chinese Academy of Sciences, there has been a misinterpretation. On January 17, Gu Huinan, general manager of GAC Ean, said, "everyone should be careful not to misunderstand Ouyang Minggao." He said he wanted both this and that, and it was even cheaper, which was definitely impossible. 8-minute fast charging is not only a battery problem, but also related to the charging pile. Don't confuse technical issues with promotion and operation issues. It also said, "the car with a range of 1000 kilometers this year will definitely come out, and so will the fast charging. It will fill 1000 kilometers in 8 minutes, which is possible in theory."

With the introduction of the corresponding high-life power battery, the problem of battery life may be alleviated, but another problem brought about by this is that the introduction of ultra-high battery life power battery needs to be supported by a matching charging pile. It is possible to face the awkward situation of mismatching supporting facilities with charging piles as the core.

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