From a university student to a chief academician

Chapter 184 The World's No. [-] Lithium Battery Separator

"Passed, my God, the C72 fullerene mask can actually allow electrolyte electrons to pass through."

"Who would have thought that it was through the mask."

"Du Wei, you've done a great job."

"..."

In an instant, everyone was blown away.

The researchers cheered excitedly.

And the researcher who made the mask, Du Wei, was stunned.

Du Wei didn't expect that the mask he made with fullerene could solve Xia Guo's last problem in the lithium battery field, the lithium battery separator.

This is really life is impermanent!
Ye Fei and Professor Gao looked at each other, and Ye Fei smiled and said, "Professor Gao, it seems that C72 fullerene has many fields that we don't know about!"

"Yes!" Professor Gao nodded, then looked at Ye Fei with admiration and said, "If you didn't insist on researching, could C72 fullerene be used in the field of lithium batteries?"

"We will never know that C72 fullerene can be used in the field of lithium batteries."

"In this way, our country does not know when we will be able to develop lithium battery separators."

Four core materials in the field of lithium batteries, positive electrode material, negative electrode material, electrolyte and separator.

Xia Guo had mastered the three core materials before, and now he has to master the last diaphragm.

Based on Xia Guo's current demand for lithium batteries, as long as the lithium battery diaphragm technology is mastered, the price of the manufactured lithium batteries will be reduced.

Professor Gao said: "In the past 20 years or so, lithium battery separator technology has been mastered by North America and Dongying, and my country is the largest sales market for new energy vehicles and lithium batteries."

"Our country imports a large amount of lithium battery separators from abroad every year."

"This has led to a step-by-step increase in the price of lithium battery separators every year."

"But we had to buy it."

"Do you know how cheap polypropylene and polyethylene are, the raw materials used to make lithium battery separators?"

"One ton is only 2 yuan, but after it is made into a lithium battery separator, the price per ton is 300 million yuan."

"150 times the price difference!"

"And now we have developed a lithium battery separator." Professor Gao said with bright eyes: "In the future, in the field of lithium battery separators, the days when we let others slaughter us are gone forever."

All the researchers around nodded their heads, their blood boiling.

They do scientific research, one is that they love scientific research, and the other is for the country.

Break the technology blockade and let the country master more and more technologies.

More technology makes the country richer!
The country is rich and the people are strong!
Ye Fei looked at Du Wei and said with a smile, "Thank you, if it wasn't for your mask, I wouldn't have thought of using a fullerene mask to allow electrolyte ions to pass through."

Someone laughed and said, "Du Wei, it looks like your mask is still useful? If you make a mask in the future, Director Gao will definitely not say anything about you."

Du Wei scratched the back of his head, and said with a dry smile: "I didn't expect this to happen, I thought Director Ye asked for a mask from me, and he applied it himself!"

Professor Gao shook his head and laughed, "I just said that Ye Fei is not that kind of person. He wants the mask for experiments."

Ye Fei said: "Okay, now that it has been proved that C72 fullerene can be used to make lithium battery separators, then we can conduct in-depth research in this field."

Professor Gao nodded and said, "Yes, but we are not researchers specializing in lithium batteries. We need to find professionals in the field of lithium batteries."

"Yes!" Ye Fei nodded.

After that, Professor Gao cooperated with Academician Guo Ruo of the Institute of Physics of the Chinese Academy of Sciences by virtue of his personal relationship.

Academician Guo Ruo is a researcher, doctoral supervisor, and deputy director of the Institute of Physics, Chinese Academy of Sciences.

Mainly engaged in computational physics research, including computational research on magnetism and surface physics problems.

Early in the morning, Professor Gao and Ye Fei stood at the gate of the Kyoto Graphene Research Institute.

The two are waiting for the arrival of Academician Guo Ruo.

Ye Fei asked: "Professor Gao, what kind of person is Academician Guo Ruo?"

Ye Fei felt that it was necessary to get to know Academician Guo Ruo.

After all, they are going to work together for a period of time in the future.

Professor Gao thought for a while and said, "How should I put it, he is an old man with a strange temperament."

"Weird?" Ye Fei said with some anxiety in his heart: "It should be difficult to get along with!"

There are quite a lot of people like this in the scientific community, and Ye Fei finds it difficult to get along with such people.

This reminded Ye Fei of Professor Zhou Kang who worked with Ye Fei in the computing power laboratory when he was at Zhonghu University.

At that time, Ye Fei invented mathematical algorithms in the computing power laboratory.

Professor Zhou Kang is an eccentric person.

However, he admired Ye Fei's talent very much and treated Ye Fei very well.

However, to others, Professor Zhou Kang has a nose rather than a nose, and eyes rather than eyes.

It's like the boss of the sky, the second child of the earth, and the third child of him.

In the entire School of Computer Science, Professor Zhou Kang has the weirdest temper.

Professor Gao laughed and said, "It's okay, it's okay, you'll know when he comes."

Ye Fei nodded, suppressing the doubts in his heart.

After a long time, a car stopped at the gate of the institute.

Professor Gao said, "Here we come."

After speaking, the two went up to meet them.

Professor Gao opened the car door himself and said with a smile, "Academician Guo, hello!"

Academician Guo got off the car, and Ye Fei looked at Academician Guo.

Academician Guo is relatively tall, about 1.8 meters.

Academician Guo is in his 70s, and very few people born in the 60s of the last century have such a height.

Academician Guo is very thin, standing there like a bamboo pole, wearing glasses, and his face is covered with wrinkles.

But the eyes are very bright and full of sharpness.

Facing Professor Gao's greeting, Academician Guo didn't speak, just nodded lightly.

Then, Academician Guo looked at Ye Fei and said, "You are Ye Fei."

"Hello, Academician Guo!" Ye Fei said respectfully.

"I heard that old man Liu Shuquan said about you." Academician Guo said: "He said you are a genius in mathematics, why did you come to study materials?"

Academician Liu Shuquan is a mathematician. When Ye Fei was at the Supercomputing Center of Zhonghu University.

Ye Fei developed a supercomputing algorithm, and academician Liu Shuquan took people to check it.

Later, Liu Shuquan recommended Ye Fei to go to the power institute.

Ye Fei thought for a while and said, "Professor Gao invited me here."

"Yeah!" Academician Guo nodded and said, "It's pretty honest."

"Let's go, take me to see the lithium battery separator made of C72 fullerene."

Professor Gao said: "Academician Guo, please!"

After speaking, Professor Gao led the way for Academician Guo.

Soon, the three entered the Fullerene Research Institute to check the mask made by Du Wei.

Academician Guo frowned instantly when he saw the mask, and said, "This thing can allow electrolyte ions to pass through?"

Professor Gao said: "Academician Guo, let me demonstrate it for you personally!"

"Good!" Academician Guo said.

Seeing Professor Gao doing it himself, Ye Fei said, "Professor Gao, let me do it!"

After speaking, Ye Fei started to do the operation at that time again.

Soon, a lot of data appeared on the computer screen.

"It really allows electrolyte ions to pass through." Academician Guo said in astonishment: "Who discovered this?"

Professor Gao said, "It's Ye Fei."

Academician Guo looked at Ye Fei in surprise, and said, "Come on, tell me, how did you come up with this method?"

Ye Feidao: "The positive and negative electrodes of a lithium battery cannot conduct electricity when they are in contact with fullerenes, but when electrolyte ions pass through fullerenes, they generally cannot pass through."

"However, after my research, I found that fullerene molecules have unique geometric and electronic structures, and the electrode materials coated by them exhibit excellent electrochemical reactions."

"So, instead of fullerenes, electrolyte ions pass through fullerene molecules."

"Only fullerene molecules allow electrolyte ions to pass through."

"At the same time, the positive and negative electrodes of the lithium battery are not in contact."

Academician Guo nodded in satisfaction, then he frowned and looked at the mask in the glass box with distaste, and said, "You make fullerene molecules when you make fullerene molecules. How did you make this ghost thing?"

"Uh..." Ye Feiqian said with a smile: "This is made by a colleague of mine, I will use it."

Academician Guo said: "Did the two of you discover this C72 fullerene?"

Professor Gao quickly shook his head and said, "No, Ye Fei discovered it."

"Huh?" Academician Guo frowned: "I saw that the corresponding author and the first author of the paper are the names of both of you. Didn't you two discover it together?"

"No!" Professor Gao shook his head: "Ye Fei discovered it alone. At that time, I invited him to use mathematical methods to find fullerenes with better stability than C60 fullerenes."

"I just wanted to try it, but I didn't expect to be found by him."

"Afterwards, follow the interval determined by Ye Fei's mathematics to search for fullerenes, and Ye Fei also discovered C72 fullerenes."

Academician Guo stared at Ye Fei and said, "We found C72 fullerene mathematically. How do we use it? Tell me."

"Okay!" Ye Fei said.

After finishing speaking, Ye Fei explained to Academician Guo how to use mathematical methods to find C72 fullerene.

Academician Guo's eyes became brighter the more he listened, and he was very surprised: "Can it still be like this?"

After a long time, Ye Fei stopped the lecture and said, "Academician Guo, this is how I determined the fullerene interval, and then found C72 fullerene through experiments."

Academician Guo nodded in satisfaction, then hesitantly said: "Ye Fei, have you ever thought about doing physics?"

Academician Guo likes Ye Fei's mathematical ability.

If Ye Fei's mathematical ability is used to study physics, it will be even more powerful.

"Uh..." Ye Fei looked at Academician Guo in surprise.

Academician Guo said: "Stop doing mathematics, let's do physics, you are very talented in the field of physics."

"Your talent is buried in mathematics, and should go to the field of physics."

"With your talent, you will definitely be able to show your strengths in the field of physics."

"If you are into physics, you are always welcome here."

"I'm the deputy director of the Institute of Physics, Chinese Academy of Sciences. You come to me, as my identity, don't bury your identity!"

"As long as you come, I can make you a second-level researcher next year!"

A second-level researcher is equivalent to a second-level professor.

Ye Fei scratched the back of his head and said with a dry smile, "Academician Guo, I still have a lot of work to do, so I'm not suitable for the Institute of Physics, Chinese Academy of Sciences."

"What job do you have?" Academician Guo stared at Ye Fei and said, "What job is more important than coming to the Institute of Physics, Chinese Academy of Sciences?"

"Do you know how many scientific researchers across the country want to work at the Institute of Physics, Chinese Academy of Sciences, and they haven't had a chance yet!"

Seeing that Academician Guo was angry, Professor Gao hurriedly stepped forward to appease him, and said: "Academician Guo, please calm down, Ye Fei is really not suitable to work in the Institute of Physics of the Chinese Academy of Sciences, he is still a member of the Yuan Blockchain Research Institute and the Latitude Blockchain Research Institute. Director of the Institute."

"Even if he is the dean of Yuan Blockchain Research Institute and Latitude Blockchain Research Institute?" Academician Guo said angrily, "Why can't he work here if he can work here?"

Ye Fei said with a full face of grievance: "Academician Guo, I really can't work in the Institute of Physics of the Chinese Academy of Sciences!"

"I came here to work because knowing the C72 fullerene is very important."

"So, I stopped my work in the meta-blockchain research institute and the field of mathematics, and came to work here."

"After the work here is over, I will return to my original position and continue my work."

Upon hearing this, Academician Guo said with some disappointment: "Okay, since you don't come, forget it, but I will always open the door for you here, as long as you want to come, you can come anytime."

"Okay!" Ye Fei said.

In the following time, under the leadership of Academician Guo, Ye Fei and others spent more than a month to make C72 fullerene into a large number of C72 fullerene molecules, and then make C72 fullerene molecules into lithium battery separators.

It's mid-November!
in the laboratory!

Everyone looks at the computer screen, waiting for the test results of the lithium battery separator.

The lithium battery separator has been developed, and now it is time to test the data.

After a while, the lithium battery diaphragm data is displayed on the computer.

【Thickness: 10um
Breathability: 20cc
Automatic shut-off mechanism: 800°C
Porosity: 30%
Thermal stability: -40°C～90°C
Mechanical Strength: Tensile: ~90N, Transverse: ~90N
Chemical stability: inert]

When everyone looked at the data, they took a deep breath.

Someone exclaimed: "This data is too good!"

The thinnest lithium battery separator in the world is 15 microns, while theirs is 10 microns.

The thinner the thickness does not mean the better, but the better it is for mobile phones, and it is easy to carry.

If it is used in new energy vehicles, the thickness should be thickened, the thicker the safer.

Of course, since the thickness can reach 10 microns, it can naturally be thickened.

It is difficult to reduce the thickness of the lithium battery separator, but it is easy to thicken it.

The air permeability is 20cc, and the best lithium battery separator in the world has an air permeability of 50cc.

This is a full 30cc less than the best battery separator in the world, which proves that Ye Fei’s lithium battery separator is very good in terms of air permeability.

The automatic shutdown mechanism is that the higher the temperature, the safer it is. The best lithium battery diaphragm in the world has a temperature of about 600 degrees Celsius.

And theirs is 800 degrees Celsius.

The smaller the porosity, the better. The best lithium battery separator in the world has a porosity of 35%, while theirs is 30%.

For thermal stability, the smaller the lower limit and the larger the upper limit, it proves that the lithium battery separator is better. The temperature range of the thermal stability of the best lithium battery separator in the world is -20°C to 60°C.

The temperature range of their thermal stability is -40°C to 80°C.

The mechanical strength must be consistent in stretch and transverse direction. The tensile strength and transverse direction of the best lithium battery separator in the world are 50N.

And their tensile strength and transverse direction are 90N, the stronger the strength, the better.

Chemical stability must be inert to be the best.

Academician Guo said in surprise: "From this data, the performance of the lithium battery separator we developed is the first in the world."

"And, it is much better than the world's No. [-] performance in the past."

Everyone nodded and agreed with Academician Guo's statement.

They were also very pleasantly surprised. They did not expect to develop the world's first lithium battery separator.

Lithium battery separator, as one of the four core materials of lithium batteries, plays a very important role in lithium batteries.

It not only isolates the positive and negative electrodes of the lithium battery, but also ensures the service life of the lithium battery, the power of the lithium battery, the cycle and safety performance of the lithium battery.

The better the lithium battery diaphragm, the longer the service life of the lithium battery, the higher the power, the more cycles, and the higher the safety.

The entrance of the Graphene Research Institute!

Academician Guo looked at Ye Fei and said, "Are you really not coming to the Institute of Physics, Chinese Academy of Sciences?"

Academician Guo still wanted to fight for it. After getting along with Ye Fei for more than a month, he discovered Ye Fei's talent more and more.

The more I felt that Ye Fei was buried in the field of mathematics, and he should come to the field of physics.

Ye Fei smiled and said, "If I want to study physics in the future, I will go to you."

"Okay!" Academician Guo nodded and said, "Then we've agreed, if you want to study physics, you must come to me."

Ye Fei looked at the approaching car and parked behind Academician Guo, Ye Fei said: "The car is here."

After finishing speaking, Ye Fei stepped forward and opened the rear door. After Academician Guo walked up, he pulled down the window and waved to Ye Fei: "Goodbye!"

"goodbye!"

After the car left, Ye Fei returned to the Fullerene Research Institute.

Professor Gao's office!

Professor Gao sat on the office chair, looked at Ye Fei who walked in, and asked, "Is Academician Guo gone?"

"Let's go!" Ye Fei said.

Professor Gao said: "Now let's discuss, what to do with the lithium battery separator next?"

"Hmm!" Ye Fei sat on the chair opposite Professor Gao, and said, "My suggestion is to lease the patent to outsiders, for example, to some companies in our country that manufacture lithium battery separators."

"This is a way." Professor Gao said: "However, there must be an explanation for which companies to lease to. The Kyoto Graphene Research Institute is a state-owned enterprise."

"Generally, our research is leased to state-owned enterprises."

Ye Fei said: "Professor Gao, see if you can rent it to a private company."

Ye Fei wanted to lease the lithium battery separator patent to Enjie.

After all, in order to stick to the lithium battery separator, Enjie has been sticking to it for many years, and has spent countless manpower, material and financial resources.

With their spirit, Ye Fei also wanted to help them.

"Private enterprise?" Professor Gao said in surprise, "What kind of private enterprise can make you speak."

"Enjie shares!" Ye Fei said: "Xu Li, the chairman of Enjie shares, I have talked with him. This company has been developing lithium battery separators, but it has not reached the international average level."

"At the same time, this company's lithium battery separator is also the best in lithium battery separator technology among all companies in Xiaguo."

"But our country's lithium battery separator technology has always lagged behind the international level, and this company's lithium battery separator has always been at a loss."

"But they're still working on lithium battery separators."

"With their perseverance, I would like to lease the lithium battery separator technology to this company."

Professor Gao thought for a while and said: "It's not impossible, but we have to report this matter to the higher authorities. Only when the higher authorities agree, can we talk to this company."

"Of course, before that, you also need to contact the people in this company."

"We can only apply upwards if they agree to it."

"If the application is completed by then, the higher authorities agree that we will lease the patent to private enterprises."

"But this private enterprise has stopped renting. Isn't this a joke!"

Ye Fei smiled and said, "With our lithium battery diaphragm technology, they will definitely rent it."

"I know." Professor Gao said, "Isn't this just in case!"

"You're right." Ye Fei said, "I'll talk to the people at Enjie."

"En!" Professor Gao nodded.

After that, Ye Fei left Professor Gao's office and made a WeChat call with Xu Li, chairman of Enjie Co., Ltd.

Enjie shares conference room!
Xu Li sat in the first seat, and the shareholders sat below.

"Xu Dong, our profit this month is 170 million." A director said: "If there is no research and development of lithium battery separators, our profit will be at least 6000 million."

"Xu Dong, we really can no longer develop lithium battery separators, and we lose tens of millions of dollars every year because of lithium battery separators."

"If the results are good, how many years have passed, and there has been no results."

"My suggestion is to cut off the lithium battery separator business."

"In this way, we can earn tens of millions more."

Xu Li looked at the other shareholders and asked, "Do you think so too?"

The rest of the shareholders nodded.

One of the shareholders said: "Mr. Xu, many companies across the country are developing lithium battery separators, but none of them has reached the international average level, and they have all cut off this business one by one."

"So, we can't hold on anymore, and we should also cut off the lithium battery diaphragm business."

Seeing that all the shareholders supported cutting off the lithium battery separator business, Xu Li felt very sad.

It has always been Xu Li's dream to make Xiaguo's lithium battery separator comparable to the international level.

Unless it is absolutely necessary, Xu Li does not want to cut off the lithium battery diaphragm business.

He was afraid that as long as he cut it off, Xia Guo would never have lithium battery diaphragm technology again.

After all, Enjie is the company with the best lithium battery diaphragm technology among all the companies in Xiaguo.

Even Enjie cannot make lithium battery separators comparable to the international level, let alone other companies!

"Okay..." Xu Li was about to cut off the lithium battery diaphragm business.

At this time, the phone in his pocket vibrated.

Xu Li took out his mobile phone and looked at it, and found that it was Ye Fei who invited him to make a voice call.

Xu Li hurriedly said: "Everyone, I'm sorry, I'll take a call."

After finishing speaking, Xu Li walked out quickly, walked to the window in the corridor, and connected to Ye Fei's WeChat.

Xu Li smiled and said, "Dean Ye, hello!"

"Hello, Mr. Xu!" Ye Fei smiled and said, "Mr. Xu, let's make a long story short. I have a lithium battery diaphragm technology here. Its efficiency reaches the world's first, and its thickness is..."

Ye Fei explained the data of the developed lithium battery separator.

After Xu Li heard it, his eyes widened in surprise, and he said, "Dean Ye, you are not joking, how can there be such a good performance lithium battery separator in this world."

Ye Fei said: "Do you think I will joke with you about this?"

Xu Li thought for a while, indeed, Ye Fei would not joke about this matter.

Xu Li asked: "Dean Ye, where did this technology come from? Which research institute developed it?"

Ye Feidao: "It was developed by the Fullerene Research Institute under the Kyoto Graphene Research Institute."

"It turned out to be Xia Guo's research institute?" Xu Li exclaimed.

He thought that it was a foreign research institute that could develop such a good lithium battery separator.

After all, Xiaguo's lithium battery diaphragm technology has always lagged behind the international average.

Such a good lithium battery separator must have been developed by a foreign research institute.

Ye Feidao: "I'm not going to talk nonsense with you, I'm going to lease this lithium battery diaphragm patent to you, do you agree?"

"If you agree, I still need to apply to the above."

"Let it to us?" Xu Li asked in astonishment.

"Yes!" Ye Fei said, "Do you agree? If you agree, I will apply to the higher authorities now."

Xu Li asked suspiciously: "Dean Ye, why did you help me?"

Ye Fei said: "Because of what you said to me at the airport, I admire your persistence in lithium battery separators. Is this reason enough?"

"Of course!"

"That means you agree to rent the lithium battery diaphragm patent?"

"Yes!" Xu Li said happily.

He felt that this was heavenly pie, he just happened to meet Ye Fei at the airport, had a conversation with Ye Fei, and such a good thing happened to him.

With the performance of this lithium battery separator, as long as it is produced, it will definitely be sought after by the world.

Ye Fei said: "Okay, I will apply to the higher authorities next, you wait for my news."

After finishing speaking, the two hung up the phone, and Ye Fei told Professor Gao that Enjie shares had agreed.

After that, Professor Gao applied upwards.

(End of this chapter)