The top student must be diligent

Why think about this.

Liu Xiaodong looked at Xiao Yi who was right in front of him, and his excitement and nervousness were beyond words.

He took a deep breath and then began to introduce himself.

He mainly introduced his previous graduation school and the achievements he had completed.

It must be said that whether he was an undergraduate or a graduate student, his achievements were quite fruitful. He had published SCI papers during his undergraduate studies, and he was the first author of an SNC journal during his master's and doctoral studies. He was almost awarded a chance to study abroad at public expense, and even his supervisor during his graduate studies recommended him to study abroad.

He can be said to be a very talented person.

Xiao Yi, who looked at his resume, was also quite surprised.

I didn't expect that the first interviewer would be such a high-level person.

The School of Materials Science and Engineering of Shanghai Jiaotong University is a treasure.

However, Liu Xiaodong's postdoctoral resume seemed a little ordinary. In one and a half years, he only had one independent first-zone paper. Although there were some top-level results, most of them were second-authored, and some were even third-authored, which was much weaker than his average of two independent papers per year during his four-year doctoral period.

After Liu Xiaodong finished introducing himself, Xiao Yi nodded and asked a question as usual: "Why do you want to come to Science Island Laboratory? You have been a postdoctoral fellow at Jiaotong University for a year and a half. You should be able to stay after half a year, right?"

Hearing this question, Liu Xiaodong grunted, and when Xiao Yi looked up in confusion, he said: "Mainly...mainly because I feel that the pressure there is a bit too much, and the cost of living in Shanghai is also a bit high, so I want to find a place that is more relaxed."

Hearing his answer, Xiao Yi raised his eyebrows, then shook his head and said: "Relaxed? Well, the requirements of Science Island Laboratory are indeed not too high, but if you just want to relax, it is definitely not suitable for you."

He couldn't help but wonder, could it be that Liu Xiaodong was a bit lazy during his postdoctoral period because of this reason?

Liu Xiaodong realized that he had said the wrong thing, so he quickly said: "That's not what I meant. In fact, the main reason is... I like the free cooperation system of the Science Island Laboratory. I prefer to do research on my own and don't like to have... a mentor."

"I may be the kind of person who is more accustomed to independent research."

Listening to his words, Xiao Yi raised his eyebrows.

He looked at the achievements listed on Liu Xiaodong's resume again.

Then, Xiao Yi started searching for his achievements directly on the computer.

Soon, he got information about these papers.

"Zhao Guoqing, is he your postdoctoral supervisor?"

Liu Xiaodong was already uneasy because he didn't hear Xiao Yi's questions for a long time. Suddenly hearing this question made him feel even colder.

Could it be that Xiao Yi knew Zhao Guoqing?

He nodded bitterly, thinking of this terrifying thing, and said: "Yes... Professor Xiao, you don't know my supervisor, do you?"

Fortunately, Xiao Yi shook his head and said: "That's not the case. I just looked at your papers. Um... This one published in "Acta Materialia" has the corresponding author and the first author both by this person called Zhao Guoqing."

"And this "Journal of Materials Science \u0026 Technology" is also the corresponding author Zhao Guoqing, but the first author is... another person in your laboratory? This paper looks pretty good."

"But this "CORROSION SCIENCE" that you completed independently is completely your own."

"I won't talk about the others..."

Liu Xiaodong didn't say anything. He worked hard on all three papers. He won't talk about the one published in "Acta Materialia", although his contribution was at least 30%, and he had a chance to be the first author. The one published in JMS\u0026T was absolutely completed by him independently, which was the one that was robbed.

These three papers are the best three achievements of Liu Xiaodong during his one and a half years as a postdoctoral fellow. Xiao Yi found these three papers and read them.

Soon, he narrowed his eyes.

From the point of view of wording and sentence structure, these three papers look very similar.

Of course, this can't be interpreted. At most, it can only prove that the writing of these three papers was completed by Liu Xiaodong alone.

However, considering Liu Xiaodong's taboo performance towards his supervisor...

Xiao Yi thought that he might be able to ask about it after he finished.

In any case, Liu Xiaodong's achievements during his postgraduate studies were particularly outstanding.

After writing down Liu Xiaodong's name, Xiao Yi continued to ask a few other questions, let Liu Xiaodong leave, and continue the interviews with others.

It took nearly two days to complete the interviews of these 70 people, and Xiao Yi let them go back and wait for news.

...

The screening of full researchers and associate researchers was relatively simple.

Finally, he selected 7 full researchers and 7 associate researchers, plus the three outstanding young scientists, a total of 17, and did not recruit 20 people.

As for the level of postdoctoral fellows and assistant researchers, Xiao Yi gave more consideration and even used his connections to find out the specific situations of some people he was more concerned about.

For example, people like Liu Xiaodong showed special circumstances during the interview process.

In the end, he selected 26 people, 15 postdocs/intern researchers, and 11 assistant researchers.

Although there is no guarantee that these selected people will definitely accept the offer, no matter what, these people are the first batch of talents in Science Island Laboratory that he has carefully selected!

"Finally done."

At 10 o'clock in the night, Xiao Yi, who was still in the office, stretched out and finally got it done and all the emails were sent.

"I hope they can all join the company as soon as possible."

During this period of exams, he didn't even complete a few subjects.

"It's time to conduct experiments tomorrow too."

Xiao Yi thought, "Let's try some of the most recognized solid-state battery materials in the current academic community."

"Well, it mainly includes three categories: oxides, sulfides and polymers, but the most critical thing is interface engineering."

Xiao Yi began to think.

However, he only thought about it for about 10 minutes. After noticing that it was already late, he gave up thinking and left the Science Island Laboratory.

…

Shanghai Jiaotong University, postdoctoral apartment.

After the interview, Liu Xiaodong, who had really traveled outside, returned to the apartment.

Suddenly, a notification popped up on his phone, which stunned him. Finally, a kind of ecstasy filled his heart.

"Passed! It actually passed!"

He originally thought that his performance during the interview process might be disappointing.

But I never expected that I would still be accepted!

He immediately sent a message to Zhou He: [Xiao Shen is my father]

And just at this time, Zhao Guoqing sent him a message.

【Are you back? Don’t forget to send me the rest of the experiments and data. 】

When he saw the news, he immediately let out a sigh and sent a message saying: [Sorry, Professor Zhao, I figured it out when I went on a trip this time and am ready to quit. You'd better hire someone else for the rest of the experiment! 】

…

At the same time, everyone who received Xiao Yi's email was equally excited and happy.

No matter what, those who are willing to apply for the Science Island Laboratory are partly motivated by Xiao Yi's name. Now, they will be able to work with Xiao Yi in the future.

In the end, everyone confirmed that they would go to the Science Island Laboratory.

Chapter 195 Solid Electrolytes and Nanoporous Materials

Science Island Laboratory, in the sample preparation room.

"Well... we have prepared four typical solid electrolytes for the time being."

"Oxide-based solid electrolytes LLZO, sulfide-based solid electrolytes Li3PS4 and Li6PS5Cl, and polymer-based PEO-based electrolytes."

"The battery cathode material should be sulfur cathode, specifically S/C composite material."

"The negative electrode is lithium metal."

"Then……"

Xiao Yi carefully took out various needed materials.

Then he took this pile of materials to the electrochemical testing room next door.

The electrochemical testing room is a functional room specially prepared for electrochemical experiments. It is used to test the electrochemical properties of materials, especially the research on energy materials such as batteries and capacitors.

Afterwards, Xiao Yi began to prepare to assemble the battery.

Assemble the battery in the glove box to ensure a water-free and oxygen-free environment, and then use a CR2032 button battery casing. The assembly sequence is lithium metal negative electrode - solid electrolyte - sulfur positive electrode.

Then the electrochemical tests were started first, mainly galvanostatic charge and discharge tests and electrochemical impedance spectroscopy tests.

At present, solid-state lithium batteries can be realized in the laboratory, but there is still a long way to go from the laboratory to commercial applications.

Of course, Xiao Yi's current experiment is mainly to obtain corresponding experimental data, and then activate his [Material Mastery] to choose the target direction of his next research.

For example, whether to choose oxides, sulfides, or polymers.

"Well, for the constant current charge and discharge test, just test 50 cycles first."

Complete the construction of each battery, then open the circuit uniformly and wait for the cycle results.

Of course, in addition to this, there is also nanoindentation testing.

A nanoindentation instrument is used to measure the hardness and elastic modulus of solid electrolyte films. In this way, the inhibitory effect of various solid electrolytes on lithium dendrites can be measured.