Chapter 303: Hollow Carbon Balls Are Good

As soon as Professor Sun Hongbiao's words fell, a pair of eyes looked towards Lu Zhou.

Especially the representatives and engineers from the enterprise side, their eyes are shining.

And Lu Zhou, who was in the center of his sight, was holding a mineral water bottle at the moment, with a question mark on his face.

When will I be confident?

How did I not know?

In fact, the reason why he did not participate in the discussion, and even showed indifference to the seminar, was not that he already had an idea in his mind, but that he did not know what to say.

Unlike most of the big names in materials science, out of the rigor of a mathematician, he still has to write a draft before bragging. Professor Sun suddenly kicked the ball at his feet, which caught him off guard for a while.

But at this moment, Lu Zhou suddenly had an idea, put down the mineral water bottle in his hand, straightened the microphone, cleared his throat and said.

“…… According to what I saw at the MRS conference, for lithium-sulfur batteries, the shuttle effect is the biggest problem restricting this technology. And how to solve this problem, the academic community has not formed a unified conclusion. ”

"From my personal point of view, I think both ideas are good, and it is one idea to solve the problem from the cathode material, and it is also good to use the solid electrolyte as the starting point. We can follow the two lines of thought in parallel, grasping with both hands and being hard with both hands. ”

Lu Zhou, who said this, couldn't help but give 32 likes to his wit.

As for whether the last sentence is appropriate here, he doesn't know, anyway, his politics class has always been around the passing line, and he doesn't bother to care so much.

This kind of panacea answer is the least likely to offend people.

The bigwigs are happy to tear up for research funds, but it is better for him to pay for experiments by himself, or not to go in and mix blindly.

It's too much, but you have to be responsible in the future.

However, Professor Sun Hongbiao obviously did not intend to let him go like this.

I saw the old gentleman smile and continue to ask.

"Professor Lu is right, but what he said is true, but we must focus on what we want to do with limited resources. From your point of view, which option do you think is more promising? ”

The professor at Mizuki University is also a good person.

Most of them are making polymers on the surface of cathode materials, and seeing that he solved the lithium dendrite problem with modified PDMS film, he bet that he was most likely optimistic about the direction of polymers like himself, and then decisively pushed him out as a gun.

But to be honest, although Lu Zhou used modified PDMS film to solve the problem of lithium dendrite, he was not optimistic about the unique shuttle effect of lithium-sulfur batteries.

As for the reason, he can't say why, maybe it's just intuition.

Thinking of this, Lu Zhou was not only a little crying and laughing.

Suddenly, at the scene of "Bai Xue", I always felt that I would offend many people by choosing anyone.

After all, he is not a little transparent in the lithium battery, and he is also conscious of Lu Lao's attention to his own opinions. The tickets I hold in my hand can be used as two, or even three.

Knowing that this would be the case, he deduced that something was not coming.

Lu Zhou sighed.

No way.

In line with a rigorous attitude, he doesn't want to show off his imperfect research results, but it would be a bit hypocritical to continue to shirk it.

And if he is used by someone with a heart, saying that he is "not working hard" on national projects, enjoying the support of policies but fishing in troubled waters, it is always bad to spread the impact.

After a moment's thought, he spoke.

"If I have to say, I personally prefer the direction of the hollow carbon ball."

As soon as these words came out, many people were stunned.

Professor Sun, in particular, obviously didn't expect Lu Zhou's choice.

The professors and scholars in the conference room had different expressions, some were happy, some were noncommittal, and some were dismissive. The representatives of the enterprise were bright-eyed, looking forward to the landing boat to continue.

As for Lu Lao, he had a serious expression.

"Can I ask for a reason?"

"Of course," Lu Zhou paused for a moment and continued, "The hollow carbon ball has a large internal cavity and is suitable as a carbon matrix with a high negative sulfur content. At the same time, the external porous shell structure can effectively inhibit the diffusion of polysulfide ions. In addition, its structural stability and good conductivity are personally optimistic about it. ”

After Lu Zhou's words fell, Academician Wu from Yan University spoke: "I have a question. ”

Lu Zhou made a gesture of please: "Academician Wu, please speak." ”

Academician Wu said unhurriedly: "Hollow carbon ball is a very new concept, but new concepts often have hidden dangers. Technically, when lithium ions are intercalated, the material undergoes volumetric expansion, which can lead to pulverization of the alloy as the charge-discharge cycle progresses. I still think that this kind of technology is very difficult to apply in industrial production. ”

Lu Zhou: "Reducing the particle size of the active substance can reduce the degree of micronization, which is technically achievable. ”

Academician Wu's eyes were sharp, and he continued to ask, "What about the problem of volume expansion?" Have you considered volumetric energy density? ”

This academician Wu is also an interesting person, who adopts the tactics of "scolding" in directions other than the direction of solid-state electrolytes, but avoids talking about his own views and does not give people the opportunity to react. I probably plan to wait until the end of the seminar to make a final decision.

However, this is also one of the formal means.

Science and technology are objective, but whether they are good or not is subjective.

There are not so many black-and-white conclusions on technical issues, and since the birth of academic conferences, academic exchanges have been carried out in mutual conflict.

and amicably read the script, a thousand mouths are one argument, then it is not called a meeting, and nothing can be discussed at all.

In response to Academician Wu's question, Lu Zhou continued: "By dispersing the phase that can be alloyed with lithium metal into the inactive phase that is not alloyed with lithium metal, theoretically the volume expansion of the active ingredient can be compensated by building a 'buffer framework'. ”

Academician Wu had nothing to say for the time being, but another person stood up again.

I saw that Professor Wang, who was still arguing with Academician Wu about the feasibility of carbon-sulfur composite materials, asked in a skeptical tone: "How sure are you?" ”

As soon as he heard this, Lu Zhou was immediately unhappy.

Academician Wu scolds me, forget it, after all, it's not a direction, you are engaged in carbon and sulfur composite materials, and I am engaged in wool! Everyone's direction is about the same, or do you not have to think about the problem of "volume expansion" if you scold me?

Regarding Professor Wang's question, Lu Zhou was serious and said seriously.

"Scientific research is not about infrastructure, don't expect money to be thrown in and it will be successful. You ask me how sure I am, even if I tell you 1% or 99%, what's the use of saying anything but saying it? ”

This sentence made Professor Wang's face flush and he couldn't speak.

Lu Lao coughed lightly, and said, "Everyone's original intentions are good, and our discussions are still mainly academic, and harmony is the most important. ”

At this time, Professor Sun, who had previously encouraged Lu Zhou to get up and speak, seemed to see that Lu Zhou's answer did not meet his expectations, and got up to speak again.

"I'll say one more thing."

I saw the old gentleman smile kindly and said, "Professor Wang also asked out of worry, in fact, I am also a little confused about the direction of the hollow carbon ball." However, I heard that Professor Lu is an expert in the field of computational materials, so he must have unique insights, and I don't know if it is convenient to answer the mystery for us? ”

When Professor Sun asked this sentence, he didn't actually think that he could really answer this question from a mathematical point of view, but he was afraid that this kid would open his mouth at the meeting and fool a few professors, but it would be no problem for him to fool the old Lu who was sitting there.

After all, solving the shuttle effect of lithium-sulfur batteries.

That's naturally the surface polymer material I'm researching!

However, what he didn't expect was that his question was in Lu Zhou's hands.

I saw Lu Zhou smile embarrassedly, looked at Lu Lao and asked.

"That's easy to say, is there a blackboard?"

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