Not long ago, a passage made by Academician Ouyang Minggao at the forum of the Electric Vehicle 100 was interpreted by some ** as a "crackdown" on CATL and GAC Group, so that the two had to respond, is this true?
Correct nonsense
The words that were taken out by ** were "If someone says that it can run 1,000 kilometers and be fully charged in a few minutes, and it is very safe, and the cost is very low, you don't have to believe it, because it's impossible." "At first glance, it's really eye-catching.
However, as the vice chairman of the China Electric Vehicle 100 Association, Academician Ouyang Minggao is not only an "academic leader" in China to promote pure electric vehicles, but also has personally participated in the construction of a number of enterprises related to new energy vehicles. With his usual position, would he make such a statement? Will it be taken out of context?
By sorting out**, you will find that there is context in front of the academician's speech. Before this paragraph, it is "The second point I want to say is that battery material innovation is actually a very important thing to accumulate and work hard for a long time." Because we have to balance contradictory performance metrics such as specific energy, lifetime, fast charging, safety, cost, etc. – they are contradictory. After this passage is "In these areas, it should be said that there have been no particularly major breakthroughs in recent years." ”
When you look at it in context, the facts are clear. As an expert, Academician Ouyang told everyone that although various new batteries with high specific energy, long life, fast charging, no ignition, and low cost often appear in the laboratory or manufacturer news, the perfect battery that combines all the above advantages has not yet appeared at this point in time.
Later he added:"We used to set high targets, but in the end we didn't meet them. Then, I would also like to say that it is the transition from the political operation of the industry to the commercial operation of the company. Now it's mainly the company's commercial operation, and as you know, there have been a lot of press conferences recently, all of which talk about battery innovation. Business operations, of course, cannot be excessive, and excessive will become hype. ”This can be seen as a kind reminder from the academician to the current "mileage race", and it is by no means a criticism.
For the time being, you can't have both
In fact, starting from the 700 km + range of Xpeng P7, domestic new energy vehicle companies continue to refresh the range standards. Among them, NIO, Zhiji, and GAC Aion have successively stated that their mass-produced products will have a range of 1,000 kilometers or more. Zeng Yuqun, chairman of CATL, also said that the BEV battery pack developed by CATL can achieve a range of more than 1,000 kilometers, 10 minutes of fast charging, and a service life of 2 million kilometers in 16 years, which basically solves consumers' range anxiety, charging anxiety and life anxiety.
But there is a trick here, more than 1000 kilometers of battery life, 10 minutes of fast charging, 16 years of 2 million kilometers and other technical indicators, which need to be customized according to customer needs, some are to meet one, some are two, and it depends on whether the enterprise can bear the cost. Note that only one or two can be satisfied, not all of them.
Gu Huinan, general manager of GAC Aion, also said that Ouyang Minggao's words, everyone should pay attention and not understand the bias. He said that he wanted this and that, and he wanted to be cheap, which would definitely not be possible. 8-minute fast charging is not only a problem with the battery, but also related to the charging pile, do not confuse technical problems with the problems of promotion and operation. GAC Group also said in the announcement that graphene-based super fast charging batteries and long-range silicon anode batteries are two different technologies, which respectively solve the different pain points of "slow charging speed" and "short mileage" in power battery applications. You can't have both.
When will the perfect solid-state battery arrive
So let's relax the time limit a little bit, where is the evolution of solid-state batteries now?
At present, solid-liquid hybrid or semi-solid-state batteries can learn from the production equipment and production system of liquid batteries, and enterprises that have landed faster have entered the stage of mass production and actual loading of batteries, but the generation difference is not obvious compared with existing batteries.
All-solid-state batteries are divided into four categories according to the electrolyte system: oxides, sulfides, halides and polymers, and each system has been well studied and applied in different enterprises. With an energy density of between 240 and 400 Wh per kilogram, mass production is progressing. Automakers are scheduled to build a trial production line for all-solid-state batteries around 2025 and launch prototypes. By 2030, all-solid-state batteries will be mass-produced and installed in vehicles, and the energy density will reach 500-600 watt-hours by then.
Now it seems that Academician Ouyang Minggao's speech at the Electric Vehicle 100 Forum is just a piece of accurate and correct nonsense, which happens to be contrary to automobile manufacturers and battery manufacturers but harmless, and it happens to be used to hype up and cause extensive discussion on 1000 kilometers of battery life.
In the end, Ouyang Minggao's academician level was recognized, the battery technology of GAC, CATL and other companies was fully concerned and discussed, and ** also got traffic in a series of reports, and finally everyone was happy.