The top student must be diligent

Chapter 197 Just come up with another theory

Science Island Laboratory.

In Xiao Yi's office.

At this time, four people were standing in front of Xiao Yi.

These four people are the newcomers to their laboratory.

Three postdocs and one assistant researcher.

"Okay, we are the only ones in this research group."

Xiao Yi looked at the four people in front of him and said with a smile.

The faces of the four people were quite excited. They could not even think about being able to do a project with Xiao Yi before.

"You all should introduce yourselves first, so as to get to know each other. Well... let's start with you, Tang Chunming."

Tang Chunming is the assistant researcher among them, and his professional title is equivalent to that of a lecturer in a university.

He nodded and then began to introduce himself: "My name is Tang Chunming. I used to be a lecturer at Xijing Jiaotong University. I studied at Heijing University of Technology as a graduate student, and then I thought it was too cold there..."

Everyone laughed, and after Tang Chunming finished introducing himself, the second person also began to introduce himself.

And this is Liu Xiaodong.

After completing the exit procedures at Shanghai Jiao Tong University, he came directly here.

I have rented a house a few days ago and officially joined Xiao Yi's research team today.

"My name is Liu Xiaodong. I used to be a postdoctoral fellow at Shanghai Jiao Tong University. Then I heard that the Science Island Laboratory was recruiting, so I quit there and came here..."

Upon hearing Liu Xiaodong's self-introduction, several people showed surprised expressions.

Postdoctoral fellows at Shanghai Jiao Tong University are paid quite well, and they are still in Shanghai. Why would they come to a newly built laboratory?

Well...even though they came themselves.

Liu Xiaodong did not talk about his experiences when he quit the station, but when he did, he felt sympathetic.

He didn't need it, and he had already expressed his gratitude to Xiao Yi when he came to the Science Island Laboratory a few days ago.

Afterwards, the other two postdocs also began to introduce themselves.

One is Meng Hao, from Jinling University, and the other is Chen Tao, a rare female postdoc in science and engineering. She is from the University of Science and Technology, and then came to the Science Island Laboratory to study.

"good."

After seeing them introduce themselves, Xiao Yi stepped forward and said to them: "Now let me introduce our topic to you."

The four people immediately pricked up their ears and showed serious expressions.

Regarding Xiao Yi's topic, they have long wanted to know what it is.

As we all know, every one of Xiao Yi's topics is heavyweight, whether in the field of mathematics or any other field.

The previous high-temperature superconductors alone were already Nobel Prize-level achievements.

Xiao Yi smiled and then said: "Our project is a solid-state lithium battery."

For a moment, all four people's eyes widened.

Solid lithium battery?

For those who study the material, this thing is basically very clear.

It is a hot topic in the field of materials, and once it can be commercialized, it will also realize huge economic value.

Unexpectedly, Xiao Yi actually set his sights on this project.

"Then my goal is to directly implement lithium-sulfur solid-state batteries."

The four people were shocked again.

Solid-state lithium batteries and lithium-sulfur batteries are strictly two different batteries and two different research directions.

Solid-state lithium batteries have to solve the problem of solid electrolytes, while lithium-sulfur batteries have to solve the problem of sulfur electrodes. You must know that sulfur itself is an insulator, so how to choose in this regard is a technical difficulty.

But it's not over yet.

Xiao Yi continued: "In addition, since we want to study this, the goal must first be on commercialization. Of course, we cannot achieve it overnight, so we will set a small goal first, that is, first make the solid electrolyte Done."

Four people: "..."

Why does this sound so...

What about separation?

Whether it is lithium-sulfur batteries or solid-state lithium batteries, they are really far away from being commercially available.

Commercial use means that mass production can be carried out at low cost. However, those currently available are not customized in laboratories.

The result was good now. Their Xiao Shen came up with the goal of being commercially available. After that, although he seemed to have some ideas in mind, he said not to achieve it overnight, but the small goal that followed made them crazy.

Is this Xiao Yi's topic?

It is indeed powerful enough!

But now they really want to ask: Is it too late to leave now?

Probably Liu Xiaodong's heart was trembling at this time, and he regarded it as sacrificing his life to accompany his benefactor.

"This is the goal of our project."

Xiao Yi looked at the stumped expressions of the four people, smiled slightly, and said: "Of course, you don't have to worry. Regarding solid electrolytes, I have made some progress before. Now, let's take a look at these few things. Let’s get a lab report.”

Then, he picked up several experimental reports from the desk next to him and handed them to the four people.

Of course he knows that this subject is difficult for these people, and he will not rely on his reputation alone to convince these people that their subject can be achieved.

This is no different from drawing a pie.

Results speak louder and more powerfully.

The four of them were stunned. They didn't expect Xiao Yi to actually prepare data.

They took these experimental data and began to look at them.

Then, they all showed surprised expressions.

"This is... a nanoporous carbon material? Is this performance so good? "

"Under BET analysis, the specific surface area reaches 1200m^2/g, and the pore size distribution is actually maintained between 3-28nm, which is incredible."

"It also has such symmetrical redox peaks, with peak current densities of 1.5mA/cm^2 and 1.4mA/cm^2 respectively... much better than what I have seen in previous papers."

"The charge transfer resistance is 25Ω, and the capacity at 1C current density is also 2300mAh/g, and..."

Looking at the various data listed on the experimental report, they couldn't help but be surprised.

The data displayed one by one all demonstrate the excellent performance of this nanoporous carbon.

This is absolutely top-notch performance when placed on top of a solid electrolyte.

"How is this prepared?"

For a moment, all four people looked at Xiao Yi, showing expressions full of curiosity.

"Nothing, I just slightly improved the template method and activation method so that these two methods can be used together."

Xiao Yi waved his hand and said.

There are many methods for preparing carbon nanoporous materials, including template method, activation method, direct carbonization method, etc.

Among them, template method and activation method are the two most common ones.

His research just combines the two.

But hearing his nonchalant tone, Liu Xiaodong and the other four didn't know what to say for a moment.

Combining these two methods...is it such a good combination?

But no matter what, this carbon nanoporous material can be regarded as giving them a certain degree of confidence in this subject.

After all, if the analysis report of this material is released, it will probably be easily published in "Nature Materials".

Of course, whether Xiao Yi is willing to vote for "Nature Materials" is still a question. After all, this kind of sub-journal under Nature, based on Xiao Yi's public confrontation with Nature, probably doesn't need to be considered.

Of course, Xiao Yi did not restrict them from voting for Nature. After all, for him, whether they vote for Nature or not does not have much impact. For others, whether they vote for Nature or a sub-journal is considered very important. Achieved.

"Professor Xiao, what are our next arrangements?"

Tang Chunming put down the report in his hand at this time and asked.

The other three people also showed expressions of listening carefully.

Xiao Yi said: "The first thing to do next is to continue to optimize this carbon nanoporous material. In addition, we also need to try to modify and optimize our target solid electrolyte."

"The solid electrolyte I plan to study is lithium phosphorus sulfur chloride. This is also the most promising solid electrolyte in the current academic community for commercial use. Well, I think you should be relatively familiar with this stuff."

“Although the interface is assisted by carbon nanoporous materials, which can enhance the interface performance of lithium phosphorus, sulfur and chloride to a certain extent, the problem that still exists is that its interface resistance is still relatively high and its ionic conductivity is still relatively low. So we need to find ways to modify it to reduce its interface impedance.”

"Here we first need you to do some modification experiments of doping LiI, LiN, and other highly conductive ions."

"In addition, regarding the research on sulfur electrodes, I need you to do several electrochemical experiments on different sulfur electrodes."