Chapter 184: Start experimenting!

"Do you want to borrow a laboratory?"
On the phone, after hearing Lu Zhou's request, Professor Li Rongen, who was analyzing samples in the carbon nanomaterials laboratory, frowned in doubt.
Holding the mobile phone, Lu Zhou said with a smile: "Yes, I found something interesting while researching the literature. If I want to operate it in the laboratory, I may need a homogenizer and a digital microscope."
The reason is of course he compiled it. Although he and Professor Li have a good personal relationship, he hasn't made it to that extent yet. It is not to doubt Professor Li's character, but to avoid unnecessary disputes over interests.
After all, the value of this level of invention is not something that a SCI can measure.
Especially for those in the industry.
"Let's do that. I'll say hello to the teacher who manages the laboratory. You can go to the office 304 of the experimental building to find Professor Wang Xianfu."
Although he was curious about why Lu Zhou was engaged in high-energy physics, why did he run this kind of experiment, but Professor Li Rongen didn't ask too much, only he was interested, and he readily agreed.
If someone else borrowed these devices, he would still hesitate a bit, and refused if he was unfamiliar, but Lu Zhou was different. His last dissertation on computational materials helped him a lot.
That was a billion-plus project, and the economic benefits directly and indirectly brought it to tens of millions, not to mention that as one of the shareholders of Zhongshan New Material, he was still a direct beneficiary.
By comparison, what does Xiao Mi calculate?
It's just a matter of raising a hand, and he can't even talk about human feelings.
Professor Lu promised so easy, Lu Zhou was a little embarrassed.
I knew this old gentleman was so good at talking. What other digital microscope bike did he borrow? He just got an SEM scanning electron microscope.
"Is there anything else?" Seeing Lu Zhou not talking, Professor Li asked with a smile.
Lu Zhou said, "No, thank you professor."
"Will you do the experiment alone? Or should I send Qian Zhongming to help you?"
Lu Zhou declined politely: "No, I want to try it myself."
He certainly couldn't agree.
Experts like Brother Qian are afraid of seeing their unique problems at a glance.
At that time, many things were not sealed, no matter who designed the experiment, or how all this was done.
This experiment is destined to be done by himself.
"Okay, you remember don't break the instrument. Don't blame me for complaining to your boss."
Knowing that Professor Li was joking with himself, Lu Zhou smiled and packed the ticket and said, "No, you can rest assured! I guarantee what the laboratory will look like when it is borrowed, and when it is back!"
I got the key from Mr. Wang in the 304 office. Lu Zhou's next plan can finally start.
According to the technology reversed by the scanning gun, the key to solving the problem of lithium dendrite growth lies in the processing of polydimethylsilane materials.
In order to solve this problem, the experimental idea he designed was divided into two steps: production and spin coating.
However, the key to the problem is still the handling of PDMS materials.
The untreated PDMS material, even if coated on a copper sheet, is useless at all, how the lithium dendrite should rise or rise, and the explosion should still explode.
Materials science and mathematics are different. The former must sum up experience in countless experiments and huge capital investment, while the latter can start research with a pen and a pen without considering the literature. Most of the research funding is spent On the travel expenses of the meeting.
Lu Zhou thought about it for a whole day, but couldn't find a suitable method. In the end, he had to make a serious effort and spent 500 points. In this link, he turned to the system for help and got a recipe.
Looking at the points that changed back to 1975, he still had a severe pain in his heart.
This stuff is really expensive, and the reward points for his several tasks are only 500 points, which is enough to redeem a PDMS material processing method.
If the entire battery technology is integrated by points, I am afraid that the points consumed will be enough to "buy" a Goldbach conjecture.
Although it took a lot of points, fortunately, the materials used in the formula can be found in the laboratory, and those that cannot be found can be borrowed in the next room.
It took a full three days and after countless failures, Lu Zhou finally prepared a qualified PDMS material-a bottle of waxy yellow gel.
This thing looks like honey, but full of jelly texture. It looks like there is nothing special on the surface, but the microstructure of the gills under an electron microscope is very different from the ordinary liquid polydimethylsiloxane.
Instead of staying in this short victory, Lu Zhou hit the iron while he was hot, put the rectangular copper foil prepared in advance in the homogenizer, and started the second most important step in the production of electrode materials:
Spin coating!
The so-called spin coating method is a coating process in which the coating droplets falling on the workpiece are fully distributed on the surface of the workpiece, relying on the centrifugal force and gravity generated when the workpiece rotates.
This operation places high demands on the operating techniques of the experimenter, but it is not as simple as a mobile phone film.
The uneven coating may cause the lithium ions to not uniformly precipitate on the negative electrode material, and lithium dendrites will not be used to pierce the separator. After doing several sets of charge and discharge cycles, they will grow crooked and unusable.
Although it has been tested with other materials before, Lu Zhou failed many times.
After a whole morning of tossing, he succeeded in obtaining a valuable piece of "copper foil evenly coated with PDMS nanopores."
Looking at the copper foil sandwiched between the tweezers, Lu Zhou couldn't help feeling.
If you know what this thing is, what's the use of it, and I'm afraid that it will cost you hundreds of millions of dollars, no one will be too expensive?
Taking a scent by heart, Lu Zhou packed up the samples, including those remaining PDMS materials in pharmaceutical glass bottles, and took away all of them.
There is one last step left.
That is to make a simple battery, test the performance of this fort, whether it is as amazing as he imagined.
I have seen Lu Zhou's demonstration by Brother Qian. This time I can operate it by myself. Although I am not familiar with it, it is basically familiar.
In another laboratory, Lu Zhou smartly changed into a white lab coat "Jarobe", put his hand into the argon-filled glove box, and heartily covered the copper foil of PDMS nanopores and fixed it. On the battery Ni.
As for the binder, sodium carboxymethylcellulose and styrene-butadiene rubber, UU Kanshu www.uukanshu.com uses aluminum foil as the current collector, and the positive electrode active material is still LiFePO4 for today's lithium-ion batteries!
As for the diaphragm, Lu Zhou had ulcerated the Celgard2325 three-layer combination diaphragm as before.
Except for the major changes in the anode material, other materials are basically the "original class" of the last lithium dendrite observation experiment, at most there is only a slight change in the amount.
After completing the final assembly operation, Lu Zhou still did not dare to carelessly, took the sample heartily, and closed the air valves of the glove box.
It wasn't until he had completed all the steps that he took a breath and wiped the sweat on his forehead with his sleeve.
"Get it!"
Looking at the sample battery, Lu Zhou was full of excitement.
And, a trace of piety that he did not even expect.
Yes, it is piety.
As a researcher, this is my devotion to science.
This technology is likely to come from a civilization that is more advanced than all civilizations on the planet combined. Compared to the meaning of its existence, the economic value hidden behind it is much bleak.
Maybe it came from a zhancheng market, or it might come from a trash bin that was humbled by a stargazer.
But no matter where it comes from, the person who makes it see the sun from the debris box is himself.
Taking a deep breath, restraining the pecking excitement, Lu Zhou connected the battery sample to the BK-6808 rechargeable battery tester, and then placed it under the digital microscope.
Everything is ready, all that remains to be done is just waiting.
Hope the final result will not let him down.
Set 10 minutes to take a picture, Lu Zhou turned on the battery tester, and then took out a document about the latest research progress of Polignac's conjecture from the computer bag, and quietly delved into it.
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