Scholar’s Advanced Technological System

The hardware level of Frick’s chemistry lab really deserves to be at the top level in the United States. Rich and imposing Princeton is not only willing to spend money on the Professor, but also the investment in the instrument.

I consciously moved the latest MACCOR high-precision battery test system, and Connie looked at Lu Zhou with a smile.

“The best battery test system in the entire Fick chemistry lab is this guy, I borrowed it for you!”

Lu Zhou: “There is no such good battery test system…”

Connie explained: “But you said that investing in the instrument is better than spending the budget on the sample consumed by the repeated experiments.”

Staring at Connie and looking at his eyes, Lu Zhou suddenly felt that the boy was not as thick as he looked.

The money for this machine purchase can be recorded in his account.

If it was before, Lu Zhou would definitely feel bad for a while.

But now…

Ok, waste is shameful, he is still a little bit distressed.

But it doesn’t hurt so much.

Putting things on the side of the instrument for a while, Lu Zhou asked with a serious look: “Does the battery sample do?”

Connie immediately said: “No problem, it’s easy!”

Lu Zhou thought about it and made a statement: “11, 14 sample is your responsibility, I am responsible for 15, 23 sample. According to 30%, 20%, 10% mass fraction, hollow carbon ball powder mixed with elemental sulfur , make a positive electrode material, and then assemble lithium battery, how do you understand it?”

Connie is standing upright: “Of course!”

There is nothing to say about the negative electrode material. Because the synthesis process is simple, the combination of the modified PDMS film and the copper core lithium plate is not only the standard of the industry, but also the standard of the major Material Science Institute.

As for the positive electrode material, it takes a little thought.

Not just hollow carbon spheres, all carbon nanomaterials have similar troubles.

Simple mechanical agitation and grinding can only make the hollow carbon ball agglomerate macroscopically mix with the matrix powder, and it is powerless to disperse the agglomerate itself.

Before the hollow carbon spheres are mixed with the elemental sulfur by ball milling, they are also dispersed in ethanol by adding a surfactant such as polyurethane, and then mixed with elemental sulfur.

As for the remaining steps, there is no big difference between the Lu Zhou experiment and the lithium battery experiment.

The battery was assembled in a glove box and then connected to the battery test system to confirm the performance of these materials in the electrode through a large number of charge and discharge tests.

There is no skill in these tasks.

In fact, the research in Material Science is not very skillful.

The current research and development of new materials is based on the researchers’ “scientific intuition” and a large number of repeated “trial” experiments, using limited conditions to find a feasible method. If we can build a set of theories that apply within a limited scope on the basis of it, then it is quite a big bull.

Although the mathematics method can reduce the workload of the experiment, the experiment is still essential…

……

I remember the last time I burst the liver, or this time last year.

In order to complete the final step in solving the Goldbach conjecture, Lu Zhou locked himself in less than twenty square feet of World, completely immersed in the maze of numbers, looking for the ultimate way out.

Compared with the feeling at the time, the feeling now is simply awkward.

This long-lost feeling is really nostalgic.

It’s been a week since the first experiment started.

During this time, Lu Zhou did not sleep in the lab, and the rest of the time was basically in the lab.

Two days ago, Yang Xu, who conducted the experiment at the Institute of Computational Materials in Nanjing, made a table of the effects of the specific surface area and pore size of the hollow carbon sphere on the sulfur loading and the mass fraction of polysulfide in the electrolyte. Arrived at his mailbox.

In order not to delay the work there, he needs to build a mathematics model based on these data as soon as possible, and then develop the next experimental plan.

Things seem to be all piled up together.

With the squeaky eyebrows, Lu Zhou dropped the ballpoint pen in his hand and looked at the Connie who was observing the sample.

“How is the 15 sample?”

Also in the dark circles, Connie’s expression next to the scanning electron microscope shook his head in a bit of sorrow. “The last group was completely scrapped. Almost all of the sulfur is deposited on the surface of the carbon material. You can look at it. It looks very spectacular…”

Lu Zhou gently sighed: “Put the sample on the SEM and take a film, then dispose of it… I have seen enough.”

It’s too fierce.

If this is the case, the three sets of samples from 11, 14, and 15 are almost completely annihilated.

For such a tragic experimental result, Lu Zhou couldn’t help but wonder if his theory was not a problem.

However, this is also the thing he is least willing to doubt.

Because after that, he counted many times and got the same result.

If this theory is really problematic, then he has to face a difficult choice.

I pretend not to know, and continue to hang in the industry with my conscience. Or do a school-speaking Scholar, find the error to take the initiative to correct, and honestly contact the editorial department of the Journal of Shuimu University to withdraw the manuscript…

In the former case, the feasibility is still very high. Even if it is proved wrong by others in the future, you can use the “honest mistakes” to smother the past, and no one will be embarrassed. But think of the social resources that are wasted…

and many more!

Lu Zhou suddenly shivered and returned sobered up.

This experiment has not been done yet, and I have started to think about things.

Where is this going to be?

Tightening his fist, Lu Zhou shouted took a deep breath, calmed down, looked forward towards Connie continued to ask.

“What about the 23 sample?”

“Let me… 10% and 30% groups have been finished since 200, 20% group… Unbelievable, this 500 turned, and still struggling.”

The word struggle is very interesting.

It seems that his assistants have no hope for this experiment.

However, it seems completely different from Lu Zhou.

As if he had grasped the last straw, he restrained the excitement and asked: “What is the volume change of the negative electrode?”

After looking through the transparent part of the battery case for a long time, Connie squinted and got an ambiguous answer: “It seems that nothing has changed.”

Lu Zhou restrained the urge to swear: “Don’t use visual inspection, open the caliper for me! I want an accurate answer!”

“I know, I just made a joke…” Disassembled the battery, Connie carefully handled the positive material inside, and measured the width change with a vernier caliper.

The volume expansion effect of carbon-sulfur composites is very obvious once they occur, even at macroscopic scales.

After measuring it once, Connie recorded the data in the experimental report, and suddenly fell slightly.

Then he measured another group.

Also tested a group…

Looking at the Dilly-dallying Coney, Lu Zhou was slightly frowned.

“Failed?”

“No…” Connie shook his head and swallowed. “The result is so hard to believe…”

“Immediately determine the composition of the electrolyte chemistry!” From the office chair, the momentum of Lu Zhou has never been higher. “Action is fast!”