When I am reborn, I just want to be a top student

Chapter 271 Genius is not enough to describe me

In the rather small conference room, the atmosphere became quiet after Academician Chen Quan took the initiative to mention Wang Donglai's name.

Because the people present were either university professors or company executives, even secretaries and reporters were among the best.

As soon as Academician Chen Quan said his words, everyone was keenly aware of the appreciation for Wang Donglai in Academician Chen Quan's words.

Although it seems inappropriate for Academician Chen Quan to ask Wang Donglai at this time, if you think about it carefully, you will find that this is a good opportunity.

After all, there are many industry leaders who can attend this conference, including professors and scholars from universities, and engineers who have specialized in the new energy field for many years.

If everyone wanted to speak, Wang Donglai would definitely be at the back of the queue.

Of course, this situation will not occur naturally.

However, Wang Donglai's status in this conference is not high in the field of new energy, but this is true.

Academician Chen Quan directly asked Wang Dong to explain his thoughts and views, which undoubtedly gave him a good opportunity to express his views.

The main thing is that no one should be offended and no one should be criticized.

However, even though he knew it, it didn't mean that he would say it casually.

"It's just that this is not only a meeting for everyone to discuss and exchange, but also an organizational research activity on the new energy industry. The national scientific research funds are limited, and we can only choose some projects with greater possibilities and better development prospects. Therefore, Professor Wang might as well talk about the technologies he is most optimistic about, which development route is the most promising, and what are the reasons? "

“The ideas and research directions of several professors are extremely practical. Whether it is developing new materials, optimizing process flows, or improving battery technology, using lithium-sulfur batteries, lithium iron carbonate batteries and lithium batteries are all the same. I think there is no need for the academic community to unify their views and promote a certain technology at this time.”

From the moment he was asked to speak to the moment Wang Donglai stood up and took a few breaths, he had already thought about what he should say.

The purpose of his coming to this meeting was not to express himself, but to listen to other people's thoughts and ideas so as to gain inspiration and achieve breakthroughs.

This explanation also made other people present suddenly realize, and then all their eyes looked at Wang Donglai.

If the king is not secretive, his ministers will lose; if the ministers are not secretive, they will lose their virginity; if matters are not secretive, it will cause harm. This is why a gentleman is cautious and avoids going out.

Wang Donglai still understands this truth very well.

"I have seen the two papers you wrote in Advanced Materials before. I think your talent in this area is no less than in the field of mathematics."

"Every technology has its advantages and disadvantages, and our country is in a complicated situation. Only the market can give the best and most appropriate answer. My opinion is to go hand in hand, and everyone should work together to complete the technology of the new energy market. capture."

He can still tell clearly which one is light and which one is serious.

Wang Donglai can naturally understand this.

If Wang Donglai had no plug-ins and didn't know the future development, he might really not know the development direction of new energy.

Academician Chen Quan, who was sitting in the main seat, kept his expression unchanged and asked with a warm smile: "Professor Wang is right, all technologies must be market-oriented, and we are a country with complex geographical conditions. The development of the new energy industry cannot be a model. It must require the coexistence of multiple technologies, and then the best new energy technology development route will be determined by the market. "

Not to mention the other people's expressions of disdain, even cynicism.

Wang Donglai's answer did not achieve the desired effect.

As for why Academician Chen Quan helped him, he had a rough guess.

Academician Chen Quan finally said why he was optimistic about Wang Donglai.

That's why he gave this snake oil answer.

however.

Especially the engineers from CATL and BYD looked at Wang Donglai with bright eyes.

The two of them still knew very well about Wang Dong's breakthrough in lithium batteries before he came.

Now, when Academician Chen Quan said this and everyone looked over, Wang Donglai was a little surprised.

However, it only took a moment for him to speak: "From the perspective of battery materials, there are mainly several types, including lithium iron phosphate, lithium batteries, and other battery types. In terms of manufacturing processes, there are also differences. different."

"So, in my opinion, the most promising and promising route is actually a false proposition."

"There is no best, only the most suitable!"

"Lithium-sulfur batteries have many advantages, but there are also many shortcomings. If the shortcomings can be overcome, then lithium-sulfur batteries must be the most promising battery route."

"The same is true for lithium batteries. The performance of lithium batteries far exceeds that of lithium iron phosphate batteries and their application range is wider, but it also has its drawbacks."

"As far as I know, these are the directions of new energy battery research around the world, but there are many preset future prospects, whether it is micro controllable nuclear batteries, graphene batteries, or high-efficiency Solar charging and discharging batteries are a preset assumption for the future.”

"Returning to the topic, currently, in terms of new energy batteries, I am studying solid-state batteries. I think solid-state batteries are the most appropriate development route when considering multiple dimensions such as technological prospects, ease of implementation, large-scale production, and safety. !”

After talking a lot eloquently, Wang Donglai finally gave his research direction.

Everyone present had different expressions when they heard that Wang Donglai's most optimistic new energy battery direction turned out to be solid-state batteries.

Solid state batteries.

As scholars and professors in the industry, they are no strangers.

At this moment, when I suddenly heard that Wang Donglai, a fledgling boy, actually wanted to study solid-state batteries, I was stunned for a moment.

Afterwards, everyone showed different expressions.

Some looked disdainful, some were noncommittal, and some looked expectant.

Academician Chen Quan and Academician Qian Yi, who were sitting at the main seats, did not change much in their expressions. Academician Chen Quan said expectantly: "Since Professor Wang chose solid-state batteries as his research direction, I think there should be a reason. Well, I wonder if Professor Wang can explain it?"

After looking at everyone's expressions, Wang Donglai didn't take it seriously and said, "Of course!" "Solid-state batteries are safe. The solid electrolyte can inhibit lithium dendrites, is not easy to burn, is not easy to explode, and has no electrolyte leakage. No side reactions will occur at high temperatures, and no combustion will occur due to the production of gas. "

"The second is that the energy density of solid-state batteries is high. It is impossible for liquid electrolyte batteries to have an energy density exceeding 500Wh/kg. However, with all-solid-state electrolytes, batteries can not use lithium-clamped graphite negative electrodes, but directly use metallic lithium as the negative electrode. , This can greatly reduce the amount of negative electrode materials and significantly improve the energy density of the battery. The energy density that solid-state battery research and development can provide can basically reach 300-400Wh/kg. "

"Third, long cycle life. The solid electrolyte solves the problem of the solid electrolyte interface film formed by the liquid electrolyte during the charge and discharge process and the lithium dendrite phenomenon, greatly improving the cycleability and service life of the lithium battery. The ideal state can reach 45000 About times."

“These three advantages added together are undoubtedly the most ideal battery technology.”

Just when Wang Dong finished speaking and the chairpersons Academician Chen Quan and Academician Qian Yi did not comment, Professor Lei from Peking University suddenly chuckled and said loudly: "Professor Wang, I have two questions. I don't know Professor Wang." Can you give me an answer?"

Wang Dong came to look at Professor Lei, nodded and said, "Excuse me."

Professor Lei took a careful look at Wang Donglai and then said slowly: "Solid-state batteries do have so many benefits, but there are still two problems with solid-state batteries. I don't know if Professor Wang knows about it. If he knows, he is prepared to use it." What kind of solution is there?”

"The first is that the interface resistance is too large. The connection between the solid electrolyte and the electrode material is in a solid state. Therefore, the effective contact between the electrode and the electrolyte is weak, and the ion transmission kinetics in the solid material is low, which will cause The problem of excessive interface resistance.”

Hearing Professor Lei talk about this issue, Wang Donglai's expression remained unchanged and he said calmly: "Simple, the contact between the electrolyte and the electrode material has been improved through the manufacturing process, which increases the transmission power of ions in solid materials. This is based on the current Technology can definitely do it.”

Professor Lei was not surprised that Wang Donglai could answer this question, and he was not entangled, so he asked a second question.

"Secondly, the cost of solid-state batteries is high. As far as I know, based on the current market price of materials, the cost of solid-state batteries is 120-200 knives/kwh. This price is not low. If you want to apply it on a large scale, it will definitely It is very difficult to reduce costs while maintaining high performance. I wonder if Professor Wang has any good ideas?”

It has to be said that Professor Lei is still somewhat talented. He found two problems in an instant and started to attack Wang Donglai.

Although he didn't know why Professor Lei from Peking University picked on himself, Wang Donglai didn't want to think about it at all.

Again, academic disagreements and arguments are normal.

The two most difficult things in the world are to put other people's money into your own pocket, and to put your own ideas into other people's heads.

Such is the case with academic discussions.

It is destined not to be harmonious, but to be accompanied by arguments and nitpicking.

Therefore, after hearing Professor Lei's question, Wang Donglai still said calmly: "The problem of high cost is not a big problem in my opinion. Large-scale production and application does not mean that it will become cabbage price. What's more, once "Solid-state battery technology has achieved breakthroughs, and the huge market will even out the costs, which will naturally reduce costs."

After hearing Wang Donglai's answer, Professor Lei said nothing more, but another person stood up and questioned with a sneer: "To put it simply, if it could be so easy to break through, it would have been achieved long ago. There’s still no breakthrough until now.”

"In my opinion, Professor Wang is better off focusing on the field of mathematics. He has proven himself in the field of mathematics. However, the field of new energy is different from the field of mathematics."

Wang Donglai turned his head, looked over, and asked calmly: "Who are you?"

With just such a sentence, the popular man stood up and spoke with an ugly face.

"Hua Ke University, Gao Qiang."

Professor Gao Qiang suppressed his anger and introduced himself in a cold voice.

"Oh, it turns out to be Professor Gao. I thought someone was fishing in troubled waters and sneaking in."

"I don't accept what Professor Gao just said. If a problem is simple, it would have been solved long ago. But this does not mean that others cannot solve it. Problems that have not been solved for so many years are really unsolvable."

"Of course, I think Professor Gao must have never had this experience, so I don't know. This is normal."

Wang Donglai will not suffer in vain.

Although Professor Lei was nitpicking, it was considered an academic discussion, and at most it was just a little emotional.

But this professor Gao Qiang from Hua Science and Technology University is different. He is purely a malicious provocation.

It had nothing to do with him, but he stood up and denied Wang Donglai with white teeth, his tone was secretly sarcastic.

Immediately, he responded to Gao Qiang's question with a serious face.

These harsh and harsh words made Gao Qiang's face turn red with anger.

However, in just a moment, Gao Qiang suppressed the anger in his heart, calmed down, and said loudly: "Since Professor Wang is optimistic about solid-state battery technology, he must have done some research on it. I don't know if Professor Wang has any Find out something really useful.”

"The research and development in the battery field is different from the problem proof in the field of mathematics. If you can do mathematics, you can do it, and if you can't, you can't. However, battery research and development is different. If the parameters are wrong, even if there is a slight difference, the final result will be completely different. ”

Gao Qiang's words sounded fine, but those present were all people from academia, or people who had contact with academia, so they could naturally understand the meaning of Gao Qiang's words.

Being targeted like this by Gao Qiang, Wang Donglai didn't want to save face for Gao Qiang anymore, so he immediately sneered and said, "Professor Gao seems to be suspecting me of academic fraud!"

"To be honest, I don't like your way of doing things. It's timid and not generous enough!"

"Although I don't understand, I don't want to understand why you have such bad intentions towards me developing solid-state batteries."

"This malice makes you say this and question me in front of so many scholars and professors."

"Logically speaking, I shouldn't talk to you, because it will only make me fall into a self-evident trap."

"However, I am a kind-hearted person and I don't want to see anyone do stupid things."

"Today, I will let you understand a truth. There is heaven outside the sky, and there are people outside the world."

After finishing speaking, Gao Qiang ignored the excited crowd and the mixed emotions of shock, anger, joy, etc.

Wang Donglai looked at Academicians Chen Quan, Academician Qian Yi and Director Lu who were sitting at the main table, and said loudly: "Academician Chen, Academician Qian, Director Lu, if you would like to delay the meeting, can you find me a big blackboard?"

"Since Professor Gao doesn't think I can develop solid-state batteries, then I'll let him open his eyes!"

(End of this chapter)