Chapter 128 Successful research and development (please subscribe)
This involves the mix ratio of lithium battery cathode materials and the packaging of lithium batteries.
There is no reference or any data. I just rely on myself to experiment step by step.
Gao Miao felt a little helpless after trying twice and failing both times.
During this period, another experimental team member left.
Now there are only three people in the experimental team.
One is Gao Miao, one is Huang Kai, and the other is Luo Hao.
It's not that Huang Kai doesn't want to leave, but that all the experimental groups are full, and most of the group's results have been completed, and they have begun to write papers. Now that he has inserted his name, isn't this peach picking?
Moreover, Huang Kai himself is an introvert and is not popular with others.
He only joined Gao Miao's group after being selected by other groups.
Luo Hao is different, his purpose is to pick up girls.
Seeing Gao Miao asking Chen Xiao for advice again, Luo Hao really couldn't stand it anymore.
A freshman who has only come to the laboratory two or three times and has never done any experiments really knows how to use lithium batteries?
Even if he talks about all the theories, a man's mouth is such a lie!
Luo Hao said: "Miao Miao, don't worry about this issue. I have already made an agreement with my instructor. Wang Dongliang and the others are studying the plastic deformation of carbon steel and have reserved places for both of us."
"Although their preliminary experimental work has been completed, the paper has not yet been written. We helped write the paper in the past, which can be regarded as contributing to the experiment. People in their team will not say anything."
As soon as these words came out, Huang Kai became uneasy and jumped up and said: "This is not possible! What should I do if you two leave? I can't do this experiment by myself."
Huang Kai shouted: "Gao Miao, I was determined to follow you at the beginning, please don't give up on me!"
Chen Xiao couldn't help but want to laugh when he heard the two people chatting here.
There is only two words for this call - truth.
Sure enough, going to graduate school is not to have outstanding research results in a certain professional field, but to get a diploma.
The more difficult the research object is, the fewer people dare to do it.
Because everyone knows that if you do this, you may not be able to produce any research results throughout the year, and it will be difficult to graduate in the end.
Instead of doing this, it is better to find a simple research direction, write the thesis, pass the graduation defense, and get the diploma.
Plastic deformation problem of carbon steel?
This is something that undergraduate students can find topics when writing papers, right? Can graduate students write this paper?
Chen Xiao was speechless.
While everyone was still arguing, Chen Xiao had already walked into the operating room.
Gao Miao's materials were indeed purchased and some processes were completed.
For example, she tried tinkering with lithium cobalt oxide, lithium nickel oxide and lithium manganate.
I also tried to re-model the battery packaging, and optimized the separator in the battery according to Chen Xiao's method, etc.
The current conditions in the laboratory are limited. There is no graphene and no nano-separator. It is very good that Gao Miao can seriously achieve this state.
Chen Xiao burst into laughter thinking about this. There was graphene in 2000, but graphene has not been invented yet.
It would be four years later that graphene was discovered by British scientists.
In this era, I’m afraid we don’t even have the concept of graphene.
Toner is just toner. Although toner does not have a two-dimensional structure, its electrical performance is not very good, so it can only be used as a makeshift one.
What Chen Xiao needs to do now is to use the materials in his hands to do things optimally.
Luo Hao came over and said, "Stop pretending here. We have already agreed to give up the lithium battery experiment."
Chen Xiao looked at Gao Miao with the material in his hand and asked, "Really?"
Gao Miao's eyes were tangled, and he really didn't know what to do.
The first draft of the thesis will be submitted in December. In January, most students will go out for internships and will have less time to spend on the thesis. The graduation defense will be held in June.
Many experimental groups have completed their preliminary experimental work long ago and are now fully devoted to the writing of papers.
As for Gaomiao? The experiment was still in its early stages and was not successful.
If it fails again this time, there will really not be much time left for Gao Miao.
Gao Miao looked at Chen Xiao's sincere eyes and thought that he chose this experiment in the first place because he had some own ideas about this thing and wanted to put it into practice.
Do you want to give up now?
Lithium batteries will definitely be the protagonist in the future, and Gao Miao knows this very well.
Why can students from Eastern universities do it, but not students from Xiaguo?
Gao Miao took the risk and said: "Who said I gave up!"
Just say this!
Luo Hao was speechless, "Meow meow! Are you crazy? It's almost October, and the first draft of the paper will be submitted in two months!"
Chen Xiao nodded and said, "I made an experimental flow chart a few days ago. If there are no problems, we can start now."
Chen Xiao glanced at Luo Hao and said, "Senior, you also told me that this is a laboratory. Please go out and talk about other things."
Luo Hao was furious because he was being taught a lesson by a freshman student in his second year of graduate school!
This guy is crazy.
Just when Luo Hao was about to have an attack, Gao Miao said coldly: "If you support me, please shut up or get out."
"A bunch of lunatics!" Luo Hao cursed and sat down beside him.
No one made any noise, Chen Xiaocai and Gao Miao talked about business.
"We currently have three positive electrode materials, lithium cobalt oxide, lithium nickel oxide and lithium manganate. The main reason for adding lithium nickel oxide and lithium manganate this time is to increase the stability of the battery and the density of the battery..."
"Now we need to apply these three materials on the aluminum foil according to a certain mixing ratio..."
The experiment is divided into three parts.
Production of positive and negative electrodes, production of capacitor fluid, packaging of batteries, etc.
During the experiment, Chen Xiao often taught Gao Miao some advanced techniques.
For example, the use of nanopolymer separators can independently increase the penetration of ions and increase the energy density of batteries.
If the carbon powder is a two-dimensional material (graphene), lithium ions will shuttle in large numbers at a faster speed between the surface of the two-dimensional material and the electrode, and the energy density and charging speed of the battery will also be greatly increased.
Gao Miao stared with big eyes, unable to imagine that Chen Xiao's theory was so reasonable, and it was much deeper than what was in the book.
This person is a freshman, and he is not majoring in chemistry. Can you believe it?
Chen Xiao looked at Gao Miao and said with a smile: "Sister Miao Miao, has anyone ever said that your eyes are big and beautiful?"
Gao Miao hit Chen Xiao on the head with a small pink fist and said: "Look wherever you look, I am your senior!"
"Ahem!" Chen Xiao could only move his eyes downward, but this place didn't seem right.
Gao Miao quickly turned around and continued the experiment.