I am devoted to scientific research, but you want to trick me into having a love relationship?

Chapter 668 If we just study it, isn't it a hot topic?

Xu Qingzhou spent the weekend living and working at the research institute, and it wasn't until two weeks later that he finally compiled the dots needed for screening quantum dot composite materials.

"The quantum dot composite materials used in the next experiment can be selected according to this standard."

In the office, Xu Qingzhou rubbed his temples, leaned back in his chair to relax his brain. He had been doing intensive calculations all morning, and his brain was a little numb.

The manuscript on the table was covered with various complex formulas.

The computer document contains screening criteria for quantum dot composite materials.

First, nitrogen doping can improve the conductivity and lithium affinity of graphene.

Second, the synergistic effect of metals shows that the complexation of transition metals such as Fe/Co/Mn with carbon can reduce the reaction energy barrier.

Third, the quantum dot confinement effect: Professor Zhao Shengwen and his team verified that 1-5 nm pores can suppress the three-dimensional growth of lithium dendrites.

"Alright, let's get to work."

After taking a sip of coffee to refresh himself, Xu Qingzhou pulled up the test that Wang Wei's team had just completed in 72 hours.

The test results of FeCo-N@graphene quantum dots from Wang Wei's group have been released. The interfacial reaction products between FeCo quantum dots and lithium show the dynamic lithium deposition layer morphology.

[Experimental group: No dendrite penetration after 72 hours at 10 mA/cm]

Control group: Symmetrical battery cycle life – polarization voltage > 0.3 V after 72 hours (short-circuit failure)

Experimental group: Lithium deposition layer roughness (Ra) – SEM showed Ra = 3.8 nm (initial Ra = 2.1 nm).

"It turns out that my previous calculations were correct; quantum dot composite materials do indeed have potential."

Xu Qingzhou nodded and said that this material has a significant effect on inhibiting lithium dendrite formation.

Of course, FeCo-N@graphene quantum dot composite materials also have significant drawbacks: the SEI layer thickens after 500 cycles, the interfacial impedance is >100Ω·cm, impurity control is difficult, and thermal stability is poor.

These are inherent shortcomings of FeCo-N@graphene quantum dot composite materials, which cannot be remedied.

"We need to hurry up and finalize the other verification materials."

Xu Qingzhou refined the plan in the morning and didn't waste any time in the afternoon. He immediately convened a meeting of the lithium dendrite group, which focused on three directions, and assigned each of the three groups within the lithium dendrite group to be responsible for one.

"I believe everyone has read the materials I posted, and has selected the core logic, the continuation of the advantages of nitrogen doping, the enhancement of the quantum dot confinement effect, and the integration of metal synergistic catalysis."

Xu Qingzhou went straight to the point, saying, "I have now identified four types of quantum dot composite materials."

He opened the PowerPoint presentation: "Nitrogen-doped graphene quantum dot (N-GQDs) based composite materials, transition metal-titanium nitride quantum dot composite films."

In the meeting room, Xu Qingzhou explained the characteristics of the four materials one by one, and then distributed the materials to each group in turn.

The experimental protocol is required to be provided within one week.

End of the meeting.

"I'll have to work overtime these days." Gong Yunfei closed his notebook.

Wang Wei laughed and said, "To be honest, let alone working overtime, if I could get the lithium dendrite sorted out, I'd be willing to live in the research institute."

"Your awareness is too low."

Hong Yayu gave Gong Yunfei her evaluation with a blank expression.

"Don't push me too hard, I never said I wouldn't work overtime."

Gong Yunfei rolled his eyes. Overtime work could be compensated with time off, and there was also overtime pay. There was a bonus when the project was completed. For someone like him who was about to get married, it couldn't be better.

He paused for a moment and then said with a sigh, "However, looking at the whole world, we really are far ahead."

Last November, their technology had already enabled the battery to achieve an energy density of 500Wh/kg.

A number of new technologies have emerged in these five months.

Unfortunately, they focused their efforts on lithium dendrites and did not continue to work on solid-state batteries. However, in the field of lithium-sulfur batteries, the shuttle effect group has already achieved an energy density of 800Wh/kg for their samples. "Don't underestimate them. Not to mention the rapid development of solid-state batteries, Oxford, the Max Planck Institute, Cambridge, and MIT all have related lithium dendrite projects. These are all top-notch competitors."

Zhao Shengwen said from the side.

"Well, I was just expressing my feelings a little."

Gong Yunfei talks a lot, but he also understands this principle. Although he sees hope in solving the lithium dendrite problem, it's still far from being solved, and there's always the possibility of someone unexpected intervening.
"Wang Wei, Liu Dongling, He Fengyao, the three of you stay here."

Zhao Shengwen asked the three key members of the Zhijing group to stay for a meeting, and he would arrange the specific work.

Everyone acted swiftly.

Each group immediately sprang into action and worked with great enthusiasm.

The shuttle effect team next door couldn't sit still any longer, so Zheng Xu immediately called a meeting to confirm the progress.

Inside the meeting room, three people sat. The short-haired girl was doing calculations with her head down, while the other two young men were talking in hushed tones.

Team leader Xiang Boyue muttered, "What's wrong with those guys next door, they're acting like they're on steroids?"

"A new material useful for lithium dendrites has been discovered: quantum dot composite material. We are currently working on a solution."

Qiu Chenyou said.

Xiang Boyue said with a strange expression, "Quantum dot composite materials, this is such an obscure thing."

Currently, quantum dot composite materials are indeed a relatively niche field, but since 23, the number of research proposals related to them has surged.

In the coming years, official documents will clearly point out the "major breakthroughs" of quantum dot composite materials in fields such as optical storage, solar cells, and light-emitting diodes, and that they have become the "development direction of next-generation storage technology".

"This was personally spearheaded by Professor Xu, so I think it's very promising. And it's not exactly obscure; there's a lab in Cambridge working on this."

Qiu Chenyou smiled and said, "If we do this, won't it become a hot and cutting-edge research field?"

There is also a phenomenon of bandwagoning in the scientific community. Some laboratories that lack strength need to find big names to endorse them, and media reports are needed to create research hotspots.

However, for true experts, their research directions are definitely the first choice for many research groups, so once their research directions are revealed, they will definitely become popular.

Professor Xu is a scholar of near-Nobel Prize caliber.

That's right. Although there are still 6 months until the Nobel Prize is announced, people online are already predicting the nominees. Xu Qingzhou will definitely be on the list of nominees for the Nobel Prize in Physics.

As for whether or not we will win an award, that depends on the organizing committee.

After all, the Nobel Prize has a delayed effect.

"Does this mean we should work overtime too?"

Xiang Boyue was inexplicably a little anxious.

Qiu Chenyou said in a deep voice, "Old Zheng called us over, probably to talk about this."

"It seems everyone knows about the lithium dendrite group."

Zheng Xu walked in with the documents in his hand, having already overheard their conversation at the door.

He sat down. "Let's have a meeting first, and brainstorm together to find ways to speed up the project."

"I suggest we ask the math group for help to further optimize the screening model and improve its efficiency."

"How about we just give the model to Professor Xu? In the entire institute, who understands mathematics as well as him?"

"Hmm, good idea."

"."

"Putting everything else aside, I just hope that Jingxuan, your group must complete the testing of the carbon nanotube array this week. Also, Chenyou, you need to get the single-atom catalytic carbon metal working."

(End of this chapter)