"You don't have to worry about him, it's all a battle of theories. We'll just do our own. Besides, more and more people are now paying attention to this situation. The above is also intended to adjust these. This is not a debate, many things, the consequences can only be known in practice, but the price we pay for growing up may be greater. Seeing Wu Zhe's blank expression, Dean Qi further explained to him.

Wu Zhe nodded, he knew that what Dean Qi said made sense. In this environment, the preciousness of Wang Chao can be more reflected.

"Don't talk about them, talk about you. What the hell is going on? Why did you still lure the Chen family out? Dean Qi Zhixin asked with a heavy face.

"Dean, it was caused by the trading system in the hands of Wang Chao and me, and the Shi family used high interest rates to attract private loans. This hole could no longer be plugged, and behind them stood the Chen family. Although I don't know how deep the Chen family is trapped, there is a certain connection, and if we are ready to move the Shi family, we must also count the Chen family in it. Wu Zhe's voice was calm, not at all afraid.

Qi Zhixin has experienced a lot of winds and waves, and he has never seen a teenager who can be so calm in the face of this kind of force.

"Is it possible to make peace without a handshake?"

Wu Zhe shook his head and said, "Their two big thunders can't be dismantled. Now it's just a secret and hasn't reported it. It's like dominoes, it's going to have a chain reaction. Now we not only have the trading system in hand, but also the cash of the second generation of the country, and this amount of money of up to 10 billion is their lifeline. If I don't take the initiative, then when they really move, according to their forces, I may not even have room to fight back. ”

Dean Qi nodded, there is no reason to prevent thieves for a thousand days. He no longer persuaded and asked, "What are you going to do?" ”

Wu Zhe groaned and said, "I plan to drain their liquidity first, and then short their stocks. and then burst the thunder to him, which led to a run on private borrowers. I have also negotiated with some investment institutions, and we will work together to dismantle this 100 billion group. As for the Chen family, if they enter the game, there are several other administrative companies blocking it. As for whether they will take the opportunity to bring down the Chen family, I don't count. This in itself is no longer a one-level thing. ”

For his old dean, Wu Zhe still believes it. Therefore, the explanation to Qi Zhixin is also more detailed.

"Wu Zhe, I will tell Principal Chang about your situation. It's a matter of the upper echelons. We don't participate, and neither can HKUST. After this time, don't get involved in this kind of thing. A bad thing is to break the bones. ”

Wu Zhe nodded, if this matter is up to him. Maybe forget it. But the next target of the family will obviously calculate Wang Chao, so no matter what, Wu Zhe can't stay out of it.

"I just said that Wang Chao can cause trouble, you either don't cause trouble, or if you do, it will be a big thing that shakes the heavens and the earth. Now that it's over, let's give it a go. I don't dare to guarantee anything else, but I can still save the lives of you and Wang Chao. ”

Wu Zhe said gratefully: "Thank you, Dean." You're worried again! ”

Qi Zhixin waved his hand and said, "It's better to get me something out than to thank you." Let's go! Let's go to materials science, I guess Wei Ruyan's guy must be in a hurry. ”

Wu Zhe followed Dean Qi to the Institute of Materials Science at the University of Science and Technology. Wu Zhe is very familiar with this place, and the major he chose in his previous life was finally the material major. And for Professor Wei Ruyan's name, it is also thunderous. I also listened to this professor's course in my previous life, and he is an authority in the field of energy batteries in my country.

Professor Wei was not tall, thin, and wore an old-fashioned tunic suit, but his eyes were piercing.

Seeing Qi Zhixin and Wu Zhe coming in, the somewhat thin old man got up happily and smiled: "You guys are finally here, don't come again, do I have to block you?" This is Wu Zhe, right? Hello, I'm Wei Ruyan. ”

"Hello, Professor Wei!" Wu Zhe didn't dare to slack off, although he didn't enter the Chinese Academy of Sciences. But the position in the industry is there.

"The Almighty Soldier King of the Female President"

"Lao Wei, I sent it to you. As for how to arrange him for you, I don't get involved. However, Wu Zhe still has a key project on this kid, when you use it, you can give me a little leisure. I've heard that some of the Ph.D. students you took with you collapsed in the lab. ”

Although Dean Qi hoped that Wu Zhe could make something different in the field of energy, he knew that Wu Zhe's greatest strength was pure mathematics, and he didn't want Wu Zhe to hang himself in the field of materials science.

"Which one is spreading nonsense, Wu Zhe, don't listen to their nonsense. When you come to me, don't hesitate to ask for anything. As long as it can produce results. Now for lithium batteries, let's be honest. I was anxious, but nothing was going on. ”

Wu Zhe is also not clear about the extent to which domestic lithium batteries have developed. Tentatively asked, "Professor Wei, can you give me a brief introduction?" The situation at home and abroad is okay, and you know that I used to study pure numbers, and there are many things that I have just started studying, so I don't know much about them. ”

Wei Ruyan looked puzzled at Dean Qi, I don't know anything? You told me that Wu Zhe solved the lithium battery?

Qi Zhixin also patted his head, and could only forcibly explain: "Wu Zhe is a genius in general medicine, and he is not a biology major, isn't this still presiding over the biological gene sequencing project?" And this kid also got a super sniper rifle out on vacation, so you don't have to doubt his research and development ability. ”

After speaking, he glared at Wu Zhe. If you kid don't get some dry goods out today, you just want to get through.

Seeing Dean Qi say this, Professor Wei Ruyan accepted his statement. Explain to the two: "Lithium metal batteries were first proposed and studied by Gilbert N. Lewis. In the 70s, M. S. Whittingham proposed and began to work on lithium-ion batteries.

Lithium batteries can be broadly divided into two categories: lithium metal batteries and lithium-ion batteries. Lithium-ion batteries do not contain lithium in a metallic state and are rechargeable.

The fifth-generation product of rechargeable batteries, lithium metal batteries, was born in 1996, and its safety, specific capacity, self-discharge rate and performance-to-price ratio are all better than those of lithium-ion batteries. Due to its own high technical requirements, only a few companies in a few countries produce this lithium metal battery. For example, we now use small batteries such as pacemakers and mobile phone batteries. As for lithium-ion batteries, there has been little progress.

Due to the issue of technology patents, our country has made some progress. However, it is very difficult to completely bypass these barriers, so the experimental process is also stuck. ”

Wu Zhe was stunned, this fucking lithium battery has only developed into a lithium metal battery, and now the lithium-ion battery has not been fully developed.

But what I am familiar with is the latest lithium-sulfur battery, which is something for cars. Isn't this a cannon to fight mosquitoes? And he also has a certain understanding of more advanced lithium-air batteries.

What should this be said? You can't let others stop the previous experiment as soon as they come up and change it to your own lithium-sulfur battery!

Scratching his head, Wu Zhe said a little helplessly: "Professor Wei, can you tell us where we have problems with our research?" ”

"It's mainly about charging and discharging. There is also the anode material. There is also a problem with the electrolyte inside. There is also the expansion rate of the battery. Well, the voltage can only be controlled at the number of 3.7V, and cannot reach the international value of 4.8V. Saying this, Professor Wei also blushed a little. It's all about solving problems, so to speak.

Wu Zhe was a little speechless, doesn't this mean that he didn't say it?

"That's it, Professor Wei. I'll give you the materials, so you can try them first. If it works, we'll move on to it. To be honest, what I'm going to do may not be what you think. In order for you to support what I said, let's finish your lithium-ion batteries first, which are still very useful for small electronic devices. ”

Wei Ruyan was stunned, and his thin body grabbed Wu Zhe and said urgently: "You said small electronic devices, can the lithium battery you said can be used as a large drive source." ”

Wu Zhe nodded and affirmed: "The kind that can make the car run!" When I said it, I thought Dean Qi understood? ”

Qi Zhixin also said with an innocent face: "I'm not studying this, I'm studying atomic energy." It's just that when you talk about energy, I'm used to paying more attention. ”

"Let's go, go to the lab. How about a first look at your lithium-ion battery? "Old man, don't look thin, this will be in a hurry. dragged Wu Zhe away directly.

"Hey, hey! Professor Wei, don't worry! You put me down first, and I won't run. Wu Zhe didn't dare to struggle, for fear of hurting the old professor.

Qi Zhixin was a little funny when he followed behind, looking at Wu Zhe, who had always been calm and unhurried, and was dragged away by the thin Wei Ruyan. There is an indescribable contrast cute.

The three of them went into the materials lab, where there were five or six people at work. Wu Zhe estimated that these were all master's and doctoral students brought by Wei Ruyan.

After entering, everyone also looked curiously at Wu Zhe, a celebrity of the University of Science and Technology. I also secretly thought in my heart: How did this person come to the materials laboratory? He's a math guy to play with materials?

Wei Ruyan entered the laboratory before letting go of Wu Zhe. After clapping his hands at everyone to attract everyone's attention, he said, "Wu Zhe, our University of Science and Technology has a baby bump." You know them all, right? Get involved with our project today. ”

Everyone also applauded and welcomed, and Wu Zhe greeted with a smile.

"Wu Zhe, let's talk about the materials that can be improved first. Don't waste time. Wei Ruyan said directly. These questions have been plaguing his team for a long time.

"The anode materials you use now are basically carbon materials, right? For example, artificial graphite, natural graphite, mesophase carbon microspheres, petroleum coke, carbon fiber, pyrolysis resin carbon, etc. Wu Zhe asked. He naturally knew that only with these materials would some of the situations that Professor Wei had mentioned appear.

Everyone nodded, these materials are considered to be internationally universal.

Because the reaction that occurs on the positive electrode of lithium battery charging is:

LiCoO2=Li(1-x)CoO2+xLi++xe- (electron)

The reactions that occur on the charging anode are:

6C+xLi++xe-= LixC6

Total rechargeable cell reaction: LiCoO2+6C = Li(1-x)CoO2+LixC6

Carbon materials must be used here, which is the theoretical basis for the charging and discharging of lithium batteries.

"For cathode materials: lithium iron phosphate (LFP), for anodes: nano titanium oxide and nano silicon oxide," Wu Zhe said.

"Nano titanium oxide and nano silicon oxide? Wu Zhe, I understand that lithium iron phosphate is used as a cathode material, but in terms of anode materials, we also need to synthesize nano titanium oxide and nano silicon oxide, which is not a simple matter. Wei Ruyan muttered.

"You are from the Department of Chemical Materials, don't tell me that you can't synthesize nano titanium oxide and nano silicon oxide." Wu Zhe was a little depressed, could it be that this knowledge was also ahead of his time? If they don't, then they have to teach them step by step.

"Not really, it's just a bit of a problem. Can you explain to me how it works? Wei Ruyan didn't understand why the anode material should be changed to nano titanium oxide and nano silicon oxide.

Wu Zhe exhaled lightly, it was good to be able to make it. "In fact, the reaction principle is the same, but the electrolyte will be a little different, let's do it first! After the effect, you can summarize it yourself. ”

"What are you doing in a daze? According to Wu Zhe, you have to do it! I still have to feed this food to your mouth, or what? Wei Ruyan saw that his students were standing still, and opened his mouth to scold.

Seeing that his boss was angry, a group of people hurriedly divided their labor and got busy. Those who make cathode materials do cathode materials, and those who make synthesizing make synthesize.

The scientific research strength of the University of Science and Technology is really not to be talked about, it has only been half a day, and the nano titanium oxide and nano silicon oxide that Wu Zhe needs have been done.

For lunch, Wu Zhe, Dean Qi, and Professor Wei all hurriedly dealt with each other outside the laboratory.

At the beginning of the experiment, a protection board was set up, which is a device to prevent the explosion of lithium batteries, and there are three protections on it: the upper limit of charging voltage, the lower limit of discharge voltage, and the upper limit of current.

First, the charging experiment easily came to the standard line of 3.6V. One student reported: "The loss of lithium atoms is only 10%, whether to increase the overcharge voltage. ”

Wei Ruyan was overjoyed to hear this, he had to lose half of his quantity in the past. Shouted loudly: "Increase to 4.2v."

"Teacher, the loss of lithium atoms is less than 20%. Outstanding performance. Another student shouted in surprise.

"Okay, repeat the overvoltage charging experiment." Wei Ruyan will also be excited. You must know that it has never reached the threshold of 4.2v before.

Less than half of the lithium atoms remain in the cathode material, at which point the storage compartment collapses, causing a permanent loss of capacity in the battery. If the charge continues, the storage compartment of the negative electrode is already filled with lithium atoms, and the subsequent lithium metal will accumulate on the surface of the negative electrode material. These lithium atoms grow dendritic crystals from the surface of the anode in the direction from which the lithium ions came. These lithium metal crystals pass through the separator, shorting the positive and negative electrodes. Sometimes the battery explodes before the short circuit occurs, because during the overcharging process, the electrolyte and other materials will decompose to produce gas, which will cause the battery shell or pressure valve to bulge and rupture, allowing oxygen to enter and react with the lithium atoms accumulated on the surface of the negative electrode, and then explode.

Therefore, after using the materials proposed by Wu Zhe, it can immediately have such a good embodiment. I can't help but Wei Ruyan is not excited. This will make him stare at Wu Zhe's expression, almost like looking at his daughter-in-law.

After repeated experiments, it has completely met or even exceeded expectations. Wu Zhe further raised the issue of conductive coatings.

A conductive coating is applied to the surface of the aluminum foil at the positive current collector of lithium batteries, and the material is aluminum foil. After coating this material, the conductive coating can effectively improve the adhesion of the electrode piece, reduce the amount of binder used, and significantly improve the electrical properties of the lithium battery.

So far, the traditional small electronic lithium battery has only taken Wu Zhe one day to succeed in his hands.