"You don't have to worry about him. It's all a dispute over theory. You'll be verbally whining, just do our own things. Besides, more and more people are paying attention to this situation now. The above are also intending to adjust these things.

It’s not a debate, there are many things that can only be known in practice, but the price we pay for growth may be greater." Dean Qi further explained to him when he saw Wu Zhe’s confused look on his face.

Wu Zhe nodded. He knew that what Dean Qi said made sense. In this environment, Wang Chao's value can be reflected more.

"If you don't talk about them, tell me what's going on. What's going on? Why did you even lead the Chen family out?" Dean Qi Zhixin asked with a heavy face.

"Director, it was caused by the trading system on my hands of Wang Chao. The Shi family used high interest rates to attract private lending. This hole could no longer be blocked, and behind them was the Chen family. Although they didn't know Chen.

How deep the family is, but the connection is certain. We are going to move the Shi family, so we must also count the Chen family inside." Wu Zhe's voice was calm, and he was not afraid at all.

Qi Zhixin has experienced many strong storms, but he has never seen any young man who can still be so calm when facing such a force.

“Is there no possibility of handshake and peace?”

Wu Zhe shook his head and said, "Their two big thunders can no longer be removed. Now he just hides it and doesn't report it. This is like dominoes, which will have a chain reaction. Now we are not just the trading system in hand,

There are also the second generations in the country who have cash in hand, and this amount of up to 10 billion is their life-saving straw. If I don’t take the initiative, then when they really move, according to their power, I may not even have room for fight back.

”

Dean Qi nodded, there was no reason to guard against thieves for a thousand days. He stopped persuading and asked instead: "What are you going to do?"

Wu Zhe pondered and said, "I plan to take time out their working capital first, and then short their stocks. Then I burst out the lightning, which led to a run for private lenders. I have already agreed with some investment institutions, and then I will

Let's take action to solve this Qianyi Group. As for the Chen family if they join the market, there will be several other administrative companies blocking it. As for whether they will take the opportunity to overthrow the Chen family, I don't know. This is no longer a matter of the same level.

.”

Wu Zhe still believed in his old dean. So he explained it to Qi Zhixin more carefully.

"Wu Zhe, I will tell President Chang about your situation. This involves high-level affairs. We do not participate, and the University of Science and Technology cannot participate. After this time, don't participate in this kind of thing. One bad thing is to break the bones."

Wu Zhe nodded, if it was his own thing, it might be fine. But the next target would obviously plot against Wang Chao, so Wu Zhe could not stay out of this matter no matter what.

"I just said that Wang Chao can cause trouble. You either don't cause trouble. If you want to cause trouble, it will be a big thing that will shake the world. Since things have come to this point, let's take a try. I, Qi Zhixin, can't guarantee anything else, but you and Wang

I can still keep the life of the Tide at the University of Science and Technology.”

Wu Zhe said gratefully: "Thank you, Dean. I have made you worry again!"

Qi Zhixin waved his hand and said, "It's better to get me something more than any thanks. Let's go! Let's go to the Materials Science side, I guess that guy Wei Ruyan must be waiting in a hurry."

Wu Zhe followed Dean Qi to Materials Science located in the Institute of Chemistry of University of Science and Technology. Wu Zhe is very familiar with this place. The major he chose in his previous life was the material major. He was also well-known for Professor Wei Ruyan's name. He also heard of this professor in his previous life. Course, he is the authoritative in my country in the field of energy batteries.

Professor Wei is not tall, thin, and wears an old-fashioned Zhongshan suit, but his eyes are bright and energetic.

Seeing Qi Zhixin and Wu Zhe come in, the thin old man stood up happily and smiled, "You are finally here. If you can't come again, I have to stop you? This is Wu Zhe? Hello,

I am Wei Ruyan.”

"Hello, Professor Wei!" Wu Zhe did not dare to neglect. Although this person did not enter the Chinese Academy of Sciences, his position in the industry was there.

"Old Wei, I've sent you a person. As for how to arrange him, it's your business, I won't participate. However, Wu Zhe has a key project in it. When you use it, please take care of it. I

But I heard that the doctoral students you brought were tired and fell in the laboratory.”

Although Dean Qi hopes that Wu Zhe can make something different in energy, he knows that Wu Zhe is the most powerful in pure mathematics, and he doesn't want Wu Zhe to hang himself in the material learning field.

"Who is spreading randomly, Wu Zhe, don't listen to them. When it comes to me, you can make any requests. As long as you can produce results, to be honest with the lithium battery, I am anxious about it, but I have no idea.

progress."

Wu Zhe didn't know how far the domestic lithium batteries developed. He asked tentatively: "Professor Wei, can you briefly introduce them to me? The situation at home and abroad is OK, and you also know that I used to study pure numbers.

There are a lot of things that I just started researching, so I don’t know very well.”

Wei Ruyan showed a puzzled look at Dean Qi. He didn't understand anything. You told me that Wu Zhe solved the lithium battery?

Qi Zhixin also patted his forehead and could only forcefully explain: "Wu Zhe is a general genius, he is not a biology major. Isn't he still in charge of biological gene sequencing projects? And this kid even got a super sniper gun during the holidays

Come out, so you don’t have to doubt his R&D capabilities.”

After saying that, he glared at Wu Zhe. If you don’t get some real stuff today, don’t even think about passing the test.

Seeing Dean Qi say this, Professor Wei Ruyan accepted his statement and explained to the two: "Lithium metal batteries were first proposed by Gilbert N. Lewis and studied. In the 1970s, M. S. Whittingham proposed and began to study lithium-ion batteries.

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

The fifth generation of rechargeable batteries, lithium metal batteries, was born in 1996. Its safety, specific capacity, self-discharge rate and performance-price ratio are all better than lithium-ion batteries. Due to its own high technical requirements, only a few are

National companies are producing these lithium metal batteries, such as small batteries such as pacemakers and mobile phone batteries that we use now. As for lithium-ion batteries, there is no progress.

Due to the technical patent issue, although our country has made some progress, it is difficult to completely bypass these barriers, so the experimental process is also stuck."

Wu Zhe was stunned for a moment. This damn lithium battery has only developed into a lithium metal battery. Lithium-ion battery has not been fully developed yet.

What he is familiar with is the latest lithium-sulfur battery, which is something for cars. Isn’t this a cannon to kill mosquitoes? And he also has a certain understanding of more advanced lithium-air batteries.

What should I say? You can’t let others stop the previous experiment as soon as they come up and change it to their own lithium-sulfur battery!

Tickling his head, Wu Zhe said helplessly: "Professor Wei, can you tell me where we have any problems in our research?"

"It's mainly about charging and discharging, and negative electrode 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 3.7V, and it cannot reach the international level.

"Professor Wei blushed a little when he said this. It can be said that these are all problems to be solved.

Wu Zhe was a little speechless. Isn’t this equivalent to not saying anything?

"In this way, Professor Wei. I will provide you with the materials, you can try it first. If it works, we will proceed later. To be honest, what I want to do may not be the same as what you think of. In order for you to support me, I will say it.

Yes, let’s complete your lithium-ion batteries first, which are very useful for small electronic devices.”

Wei Ruyan was stunned for a moment, and his thin body grabbed Wu Zhe and said anxiously: "You talk about small electronic devices, can the lithium battery you talk about as a large driver source?"

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

Qi Zhixin said innocently, "I am not studying this, I am studying atomic energy. It's just that when you talk about energy, I habitually attach more importance to it."

"Let's go to the laboratory. Let's see how your lithium-ion battery is?" The old man didn't look thin, he would be anxious and drag Wu Zhe away directly.

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

Qi Zhixin followed behind and looked at Wu Zhe, who had always been calm, and was dragged away by the thin Wei Ruyan. There was an indescribable contrast.

The three of them entered the materials laboratory, and there were still five or six people working in the future. Wu Zhe estimated that these were master and doctoral students led by Wei Ruyan.

After entering, everyone looked at Wu Zhe, a famous figure in the University of Science and Technology, and thought to themselves: How can this person come to the Materials Research Room? He is a math person who works on materials?

Wei Ruyan entered the laboratory before letting go of Wu Zhe. After clapping his hands at everyone, he said, "Wu Zhe, our treasures from the University of Science and Technology. Do you know all of us? We will start to participate in our topic today."

Everyone also applauded and welcomed him with a face, and Wu Zhe smiled and greeted him.

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

"The negative electrode materials you use now are basically carbon materials, right? For example, artificial graphite, natural graphite, mesophase carbon microspheres, petroleum coke, carbon fiber, pyrolytic resin carbon, etc.," Wu Zhe asked. He naturally knew that only

Only by using these materials can some of the situations Professor Wei said.

Everyone nodded. These materials are considered universal materials in the world.

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

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

The reactions occurring on the charging negative electrode are:

6C+xLi++xe-= LixC6

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

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

"For positive electrode materials: lithium iron phosphate (LFP), for negative electrodes: nanotitanium oxide and nanosilicon oxide try," Wu Zhe said calmly.

"Nanotitanium oxide and nanosilicon oxide? Wu Zhe, I understand that lithium iron phosphate is the positive electrode material. However, in the negative electrode material, we must first synthesize nanotitanium oxide and nanosilicon oxide. This is not a simple matter." Wei Ruyan murmured.

.

"You are from the chemical materials department. Don't tell me that you can't synthesize nanotitanium oxide and nanosilicon oxide." Wu Zhe was a little depressed. Is this knowledge ahead of the curve? If they don't know, they have to teach them step by step.

"That's not, it's just a little troublesome. Can you explain the principle to me?" Wei Ruyan didn't understand why the negative electrode material had to be changed to nanotitanium oxide and nanosilicon oxide.

Wu Zhe took a breath and it would be fine if he could do it. "In fact, the reaction principle is the same, but the electrolyte will be a little different. Do it first! After it has effect, you can summarize it yourself."

"Why are you still standing there? As Wu Zhe said, you should do it! You have to feed this food in your mouth or what?" Wei Ruyan cursed when he saw that his students were standing still.

Seeing that his boss got angry, a group of people quickly divided the work and started working hard. They made positive electrode materials and made synthetic materials.

The scientific research strength of the University of Science and Technology is really not to be said. It took only half a day before and the nanotitanium oxide and nanosilicon oxide that Wu Zhe needed had been prepared.

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

At the beginning of the experiment, a protective board was set up, which was a device to prevent the explosion of lithium batteries, which had three protections: upper limit of charging voltage, lower limit of discharge voltage, and upper limit of current.

First, the charging experiment was conducted, and it was easy to get to the standard line of 3.6V. A student reported: "The loss of lithium atoms is only 10%, is it necessary to increase the overcharge voltage?"

Wei Ruyan was happy when he heard this. He had to lose half of the amount before. He shouted loudly: "Increase to 4.2v."

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

"Okay, repeat the overvoltage charging experiment." Wei Ruyan was also excited at this time. You must know that he had never reached the 4.2v hurdle before.

The number of lithium atoms remaining in the positive electrode material is less than half. At this time, the storage bin will collapse, causing the battery to lose permanent capacity. If charging continues, since the storage bin of the negative electrode is already full of lithium atoms, the subsequent lithium metal

It will accumulate on the surface of the negative electrode material. These lithium atoms will grow dendritics from the surface of the negative electrode to the direction of lithium ions. These lithium metal crystals will pass through the separator, causing the positive and negative electrodes to be short-circuit. Sometimes the battery explodes before the short circuit occurs.

This is because during the overcharge process, materials such as electrolyte will decompose and produce gas, causing the battery shell or pressure valve to swell and break, allowing oxygen to enter and react with lithium atoms accumulated on the surface of the negative electrode, and then explode.

So after using the materials proposed by Wu Zhe, such a good manifestation will be immediately achieved. Wei Ruyan couldn't be excited. At this moment, his expression was almost as good as looking at his wife.

After repeated experiments, it has completely reached or even exceeded expectations. Wu Zhe further raised the problem of conductive coating.

The surface of the positive electrode current collector of lithium batteries is coated with a conductive coating, and the material is aluminum foil. After applying this material, the conductive coating can effectively improve the adhesion of the electrode sheet in the lithium battery and reduce the adhesive.

The amount of use of lithium batteries has also significantly improved the electrical performance of lithium batteries.
Chapter completed!