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

Chapter 208: Cultivation of oneself, harmonization of family

"boom!"

"boom!"

"boom!"

On New Year's Eve, there were more than ten kinds of fireworks displayed in Wang Donglai's yard. These fireworks alone cost ten thousand yuan.

One after another, they soar into the sky and bloom in the sky. They are colorful and of various shapes, which are particularly beautiful.

"Haha, brother, come and put one in too!"

Wang Chenyue held a windproof lighter in his hand, with a smile on his face, and invited Wang Donglai to also set off a firework.

"it is good!"

Wang Donglai laughed, took the windproof lighter, selected a firework and set it off.

Wang Donglai wanted to reproduce the battery technology in his mind, which was a high-risk experimental project.

Since Wang Qingchen was still a sophomore at Tangdu Jiaotong University, she had no arrangements, but everyone knew that she would be indispensable by then.

After the New Year's Eve, it's the first month of the year.

It is not an easy task to reproduce the technology in his mind. At least he needs to thoroughly understand this technology.

Everyone wants to come up and have a bite of meat, a sip of soup, a little bit of light, and a little bit of momentum.

Wang Donglai's house used to not be a bustling place, but now guests come to the door every day.

If Murakami wanted Wang Donglai to pay for something practical, he would never refuse.

People who knew Wang Donglai began to discuss it one after another. From elementary school classmates to high school classmates, and even classmates in the same class, they all looked proud.

It started from the first day of the lunar month and lasted until the seventh day of the lunar month.

Because he knew about Wang Donglai's research project, Xu Songyao was still a little worried, so he specially appointed two graduate students in related majors to help.

But Wang Donglai would naturally not agree to such a meaningless thing as doing a genealogy.

After school started, Wang Donglai stayed in the laboratory to reproduce the lithium-ion battery technology in his mind.

The laboratory is not as simple as pressing a button and waiting for the results to come out.

Everyone knows that Wang Donglai has made a fortune, with a net worth of several billion. He is a big boss and a university professor.

The first generation relatives, the second generation representatives, the third and fourth generations cannot be found.

For Wang Dongsheng, the cousin of Wang Donglai's uncle, he directly booked a prime location in the county to open a supermarket. As long as there were no management problems, it would not be difficult to make money.

The largest connections must be used at the most critical times. No one will waste their affection casually. After all, the more you use it, the thinner it becomes.

Depending on the type of experimental project, the degree of risk will be different.

Cao Shuxian's relatives, because of Wang Donglai's grandfather's incident, did not speak carelessly, but kept the relationship alive.

……

After such a long period of study, Wang Donglai was finally confident enough to start.

Wang Donglai also officially donated 10 million to Anshui County on the eighth day of the Lunar New Year.

Whenever there are giant fireworks taking off in other places, Wang Chenyue will excitedly run out to watch.

Fortunately, Wang Donglai has been a man for two generations and has long known the true face of many people, so he was not fooled by those compliments.

Time flies, and March is soon after the Spring Festival.

Opening his own panel and taking a look, Wang Donglai breathed a sigh of relief when he found that his experience value in [Chemistry] and [Physics] subjects had made a huge breakthrough.

Wang Huiling just thought about it and chose to take the national examination.

Fortunately, Tangdu Jiaotong University is also a traditional top university and has everything it needs. So after signing the contract, Wang Donglai started operating in the laboratory.

As for Wang Donglai's relatives, Wang Donglai also took care of them.

Tangdu Jiaotong University.

After the seventh day of the Lunar New Year, those who should go to work go to work.

This suggestion was directly rejected by Wang Donglai.

When Wang Donglai was celebrating the New Year at home, some old people in the village came to Wang Donglai and said they wanted to rebuild the family tree, build an ancestral hall, and find the roots of their branch of the Wang family.

The eldest sister Wang Huiling also pointed out a way. One is to take the national examination directly by using the name of a fresh graduate, and the other is to continue studying for graduate school and then go out to find a job.

As for the second brother Wang Dongyang, Wang Donglai, like Wang Dongsheng, directly booked a prime location in Anshui County to open a restaurant, and brought the leaders of Anshui County to support him in person. After this incident, business will naturally not be bad in the future. .

Also.

Here and there, I dealt with a lot of things at home.

In the laboratory.

In previous years, Wang Donglai rarely bought fireworks at home. At most, he bought small fireworks worth tens of yuan to set off.

As soon as the news came out, it spread throughout Anshui County.

Now that he had money, Wang Donglai naturally made arrangements immediately.

In order to learn about lithium-ion battery technology, Wang Donglai didn't know how many related professional books he read and how many times he turned on [Brain Overclocking].

March 8th.

Everything is appropriate and there are no taboos.

Although he was confident that he could operate the machine to complete the technical reproduction, he still took out his mobile phone and called over the two graduate students Xu Songyao had found for him.

Two graduate students, one named Huo Jie and the other named Meng Zhan.

When the two received Wang Donglai's call, they didn't delay long and rushed to the laboratory quickly.

After all, it was Xu Songyao who spoke to them, specifically cooperating with Wang Donglai, whether it was Xu Songyao, the vice president, or Wang Donglai, the youngest professor.

As long as someone is not stupid, they will naturally not give up such a good opportunity.

Meng Zhan and Huo Jie were wearing white coats. When they arrived at the laboratory, they asked about Wang Donglai and said, "Professor Wang, what experiments are you going to do today?"

Although Wang Donglai is a few years younger than the two of them, in the school, one is a professor and the other is a student, so naturally Wang Donglai is the main one.

"I'm sorry to bother you two. What we are going to do today is real-time in-situ observation of lithium dendrite formation in lithium-ion battery electrodes."

Wang Donglai was not polite and said directly to the two of them.

This experiment is not simple, it requires hands-on practice, and the operation has certain risks.

First, a digital microscope with a timed photography function is used for observation. Then, a LiFePO4 graphite battery needs to be assembled in a glove box filled with argon gas. Finally, an electrochemical test is performed using a battery testing system.

Electrochemical tests need to be performed under a digital microscope and recorded.

If Wang Donglai had done it a few more times, he might not have been able to operate the machine himself to complete the test.

But he didn't want to do that.

Because he believes in his own technology and the technology in his mind.

Testing is just a formality.

Although it seems unnecessary, it is very necessary.

"Professor Wang is really amazing. I didn't expect to figure out the principle of lithium-ion batteries so quickly and make one." Meng Zhan looked at Wang Donglai with admiration and complimented.

"Professor Wang, our school seems to have a research project in this area. If Professor Wang is interested, he can actually join in. I am sure Professor Yang will be happy."

Not to be outdone, Huo Jie showed his kindness and said so.

After hearing what the two said, Wang Donglai laughed and said, "That's no need. This was just an experiment on my whim. It just affected you two."

"Professor Wang is welcome."

"Yes, I also learned a lot here."

The three of them chatted and came to a machine.

Because Wang Donglai informed them in advance, Meng Zhan and Huo Jie did not waste time and quickly started taking action.

Wang Donglai had already prepared the experimental process and gave it to the two of them to look at.

So in just half an hour, the two of them debugged the machine and was ready.

"Professor Wang, if there are no other questions, then we will start the experiment!"

Huo Jie stood in front of a machine, turned his head and asked Wang Donglai.

"No problem, you can start!" Wang Donglai nodded and said to Huo Jie.

Huo Jie nodded, stopped talking, and began to operate seriously.

The lithium-ion battery technology presented by Wang Donglai is a little more complicated. It modifies high-nickel electrode materials on the surface of oxygen ion conductors to achieve high-energy-density battery material interface control.

Specifically, the surface modification of high-nickel NCM811 by the oxygen ion conductor LMO is used, and the strong chemical bonds between La and Mo ions and surface oxygen are used to 'anchor' the surface oxygen. By controlling the calcination temperature of LMO, a combination of rich and rich properties is obtained. The LMO coating layer contains intrinsic oxygen vacancies and oxygen slowly transports, thereby inhibiting oxygen precipitation in the high-nickel cathode and improving its electrochemical performance.

In simple terms, this technology improves battery performance and can hold more power.

Not only this technology, but after thoroughly understanding this technology, Wang Donglai also obtained two other inspirations while turning on [Brain Overclocking].

Moreover, we have gradually got a clue, and I believe it will be developed in a few days.

As time passed, Huo Jie followed the experimental steps and first completed the production of batteries.

Because Wang Donglai's technology was new, Huo Jie was very careful and spent a lot of time operating it.

When making batteries, Huo Jie, as a person involved, was full of doubts and shock.

Brand new craftsmanship, coupled with novel concepts.

Huo Jie suddenly had a bold guess in his mind. Will Wang Donglai's lithium-ion battery experiment really achieve a huge breakthrough?
After this thought came into my mind, it spread like wild weeds.

With this thought in mind, Huo Jie became even more concerned.

Soon, the battery was completed and it was time for testing and observation.

If the test and observation results are qualified, the success of this lithium-ion battery can be preliminarily determined.

Of course, if you want to know more about the battery, there are still a lot of tests.

For example, tests such as heating and extrusion are also very important steps. After all, the battery heats up and catches fire, which is also an extremely dangerous factor.

The instrument that tests the battery is called a battery performance tester.

The laboratory rented by Wang Donglai contains a BT3562 battery tester produced by Sakura Country.

Specially used for low impedance value measurement and high-precision voltage measurement.

Adopting 1/10 of the previous 3mΩ, it is possible to measure low impedance with a minimum resolution of 0.1μΩ.

In addition, in precision voltage measurement to improve battery reliability, 0.01% accuracy and 10μV minimum resolution can be achieved.

Through the high-speed measurement, the measurement time is only 18ms, which greatly shortens the mass production inspection time.

The wide range of mΩ to 3000Ω has a wide range of applications, ranging from various batteries to button batteries.

I have to say that although Sakura Country is not very good, some of its technologies are still very strong.

Seeing the simple battery that Huo Jie slowly made by hand through the experimental steps, Wang Donglai was a little surprised. After all, this was the first time he had seen it.

But Meng Zhan was not surprised, with a natural look on his face.

"Professor Wang, this is the battery manufactured according to your experimental procedures. Why don't you take a look and then test it?"

Huo Jie took a simple battery sample and asked Wang Donglai.

"Forget it, let's finish the test as soon as possible and let you go about your business early. It's not good for me to waste your time here too much!"

Wang Dong took a look, satisfied his curiosity, and stopped paying attention.

When Huo Jie heard what Wang Donglai said, he connected the sample battery to the battery tester and started testing. Then he brought a digital microscope to observe and record.

He tapped his fingers repeatedly and quickly set up the instrument. He said to Wang Donglai: "Professor Wang, I have set up the instrument. According to your experimental steps, it will cycle for one hundred times in a wide voltage range of 2.7-4.5V. Circle, I have estimated this time. It will take about five days without stopping. "

Wang Donglai nodded. In fact, he did not tell Huo Jie that the capacity of this battery would only decrease by 6% after a thousand cycles.

One hundred laps is just to avoid causing unnecessary trouble.

Five days was enough time for him to complete the paper.

"Thank you both. If you need anything later, just ask me."

Wang Donglai was not stingy with his promise and said to the two of them.

"Thank you Professor Wang!"

"Thank you Professor Wang!"

The two of them thanked each other.

After the two left, Wang Donglai stayed in the laboratory, looking at the instruments in case there were any problems, and writing his thesis.

In five days, it was naturally impossible for Wang Donglai to resist here alone.

Xu Zhibin and others were called over by him and took turns guarding the laboratory.

"I said Dong Lai, why did you suddenly think of making lithium batteries? This is completely incompatible with mathematics majors!"

Xu Zhibin asked Wang Donglai curiously.

They are both students in the mathematics experimental class. The greater Wang Donglai's achievements, the greater the pressure on his classmates.

However, Xu Zhibin had long been impressed by Wang Donglai and knew that the two were no longer in the same world, and he would never be able to catch up with Wang Donglai in this life.

Therefore, when he asked this question, he was more curious and a little worried.

He was worried that Wang Donglai would waste his energy and talent by changing his major to something other than mathematics.

"This is not the same drone I made last time, but the battery life was not very good, so I thought about making some improvements, starting with the battery!"

Wang Donglai made a random excuse. After all, he couldn't say that he had a cheat.

"Well, you are a genius and have the qualifications to be willful!"

Xu Zhibin did not doubt this excuse and believed Wang Donglai.

Five days flew by.

The test results in the laboratory finally came out. When the results came out, everyone was shocked!

(End of this chapter)