For this reason, Shang Yiyun only had a guess, and he was not very sure, but as long as he was given time, he would definitely be able to find the reason for the failure of the experiment.

However, he is still in the laboratory, Cao Xun and Zhang Liu are next to him at this time, and he can discuss it directly with the two, after all, he only has a guess now, and he doesn't know if the two have gained anything, so he wants to communicate with the two now.

After some exchange, he was disappointed, because the two of them didn't have a clue, so he was still the main force.

I don't know the specific reason for the failure of the experiment, so I can't continue to do the experiment, so it's not a way to stay in the laboratory now, Shang Yiyun asked the two to clean up, and then leave the laboratory, as for him, he went to read a book to find the reason and the solution.

This kind of experiment allows him to do it alone, and he can barely complete it, but it will be very tiring, so he found Cao Xun and Zhang Liu to help him, the ability of the two is already better than others, but compared to him, the difference is very big.

Therefore, it is still up to him to solve the problems encountered in the experiment.

I borrowed a few books from the library of Huaguo Normal University before, and I still haven't finished reading one book, and the purpose of his return to the dormitory this time is to finish reading this book.

When he returned to the dormitory, he found that the dormitory door was locked and all three of his roommates had left.

took out the key to open the door, Shang Yiyun walked into the dormitory, found the book from his small shelf, and then lay down on the lounge chair and started to get serious.

When he came back from the laboratory, he kept flashing the steps of the previous experiment in his mind, relying on his strong memory and logical thinking ability to constantly calculate the factors that led to the failure of the experiment.

However, if it involves a blank field of knowledge, there is no way to know the specific cause of the problem, even if you deduce where there is a problem.

Shang Yiyun looked at the book in front of him, hoping to learn some knowledge that he had not learned in the field of new energy, and then find out the reason for the failure of the experiment.

In this way, as time passed, he also learned some knowledge that he had not learned before, filling the gap in the knowledge of new energy vehicle batteries.

When he was in the lab, he knew something was wrong, but he didn't know the specific cause, but now that he has gained new knowledge, he finally knows what caused the experiment to fail.

It turned out that in the actual manufacturing process of VO2-graphene hybrid materials, it was very easy to mix with an unknown element, and it was this element that caused the experiment to fail.

From this book, he learned the name of this element, so in the next experiment, as long as he noticed this aspect, and then another special method did not let these elements into the VO2-graphene mixture, it would be fine.

Although he had now found a solution to the problem, he looked at the sky and found that it was not too early, so he had no idea of summoning Cao Xun and Zhang Liu to do experiments.

He plans to go to the lab tomorrow to do experiments to verify that today's idea is correct.

It was half past six in the afternoon, and his roommates had returned to the dormitory one after another, but no one bothered anyone, but each went about their own thing.

Regarding this situation, Shang Yiyun also knows in his heart that it has been nearly a year since he came to the university, and everyone has their own things to do, and the previous leisurely lifestyle has disappeared, which can be regarded as a kind of growth.

After feeling a little emotional, he took out the computer and began to read some of the latest international news, now China's comprehensive national strength is constantly increasing, and its voice in the world is also getting bigger and bigger.

In his previous life, he was not able to contribute more to his country, but now he is a student at Kyoto University, and he has made many achievements in the field of scientific research, and as long as he continues to do so, he believes that he will become a world-famous scientist.

At that time, he will be able to contribute more of his own strength, so that the strength of Huaguo will continue to increase, and finally stand on top of the world.

But until then, he will give priority to the development of the company, and only then will he be able to provide research funding for later development, and he does not want to rely only on the state to provide research funds.

Thinking of this, Shang Yiyun felt that his blood was boiling, and he couldn't wait to directly plunge into the experiment and develop the graphene vanadium oxide battery as soon as possible, and then he could apply for a patent to build a solid foundation for the company's development.

However, this idea is obviously impossible, because it is already half past six in the afternoon, and in the evening, he usually does not do experiments, and it is quite appropriate to go to dinner now, because he rests earlier in the evening, so the time for dinner is relatively early.

Since he decided to go to the cafeteria to finish eating, he turned off the computer, and then walked out of the dormitory with the campus card.

At the same time, he also misses his family, he has been away from home for more than two months, and his grandmother's kind face, the smile on his parents' face, and his little sister's naughty words are still fresh in his memory.

It didn't take long for Shang Yiyun to come to the cafeteria, it was the weekend, and the classmates who went out had already returned, so there were more people in the cafeteria at this time than before, but this situation had no effect on Shang Yiyun's illness, and after a meal, he casually found a place to sit down and began to enjoy this dinner.

Just as he was about to eat dinner, he suddenly found that Cao Xun was eating not far from him, seeing this situation, Shang Yiyun immediately picked up the plate and went directly to Cao Xun's location.

"Senior Cao Xun, I didn't expect to meet you in the cafeteria, it seems that we have fate. ”

Putting the dinner plate on the table, Shang Yiyun looked at Cao Xun and said with a smile.

Before, Cao Xun also felt that someone was sitting in front of him on the right, but he thought it was just a strange classmate, so he didn't raise his head to watch, but continued to solve the dinner in front of him.

But when Cao Xun heard the familiar voice, he raised his head and found Shang Yiyun looking at him with a smile.

"Senior Brother Shang Yiyun, I really didn't expect to meet you here. At this time, Cao Xun was a little surprised.

In the following time, the dinner table became a place to talk about problems, Shang Yiyun told Cao Xun what he thought of this afternoon, and Cao Xun asked a question from time to time, just like that, it took forty minutes to eat a dinner.

After talking, the two left the school cafeteria together, however, after leaving the cafeteria, the two went their separate ways, Shang Yiyun was about to go back to the dormitory, and Cao Xun was going to the library, so the two of them went to the place where they were going.

After returning to the dormitory again, Shang Yiyun found that his roommate was talking about topics related to girls, saying how beautiful a girl he met was there, and the keynote speaker was Shen Fengyu, who was used to this situation, because he knew Shen Fengyu.

However, he did not join in the discussion, but sat in his place, turned on the computer, and began to watch some of the world's unsolved mysteries, such as the water monster in Tianchi, whether it is a prehistoric giant beast, these unsolved mysteries, like a magnet, attract many researchers.

These researchers want to solve these unsolved mysteries, but they simply can't do it, so there are still some unsolved mysteries.

Shang Yiyun was naturally very interested in these unsolved mysteries, but he also knew in his heart that he couldn't study these things now, so he could only wait until later to study and crack these secrets.

Throughout the night, Shang Yiyun had been watching those strange things, and he watched them for three hours, and it was already ten o'clock in the evening, and it seemed that it was time to rest, and when he watched those things before, he didn't feel the passage of time at all.

After taking a hot shower, he climbed into bed and made a phone call to Chen Feiyun, and the two chatted about some daily topics, and then hung up the phone.

At this time, there was nothing to do, Shang Yiyun put the phone next to the pillow, and then closed his eyes and began to rest, at this time, he heard the voice of Shen Fengyu's live broadcast.

At half past ten in the evening, Shen Fengyu would start the broadcast on time, and in the face of this situation, he put on headphones, listened to some soothing light music, and slowly entered his dream.

I had everything in my dream, but when I woke up, I found that it was all false, forming a strong sense of disparity.

However, he believes that through his own efforts, the things in his dreams will also become reality.

After waking up, after Shang Yiyun washed up, he was about to leave the dormitory, and his roommate was still asleep at this time, so he lowered his steps very low, if he woke up his roommate, it would be a sin.

When he opened the door of the dormitory and left the dormitory, he resumed his normal walking state, it was only six o'clock, he believed that Chen Feiyun had not gone to the track and field yet, so he was not in a hurry, and was ready to walk slowly to Huaguo Normal University.

It took seven minutes to finally arrive at the track and field of Huaguo Normal University, and there were not many people on the track and field at this time, after all, it was only 6:20 a.m.

When he came to the track and field, he looked around, and sure enough, as he expected, Chen Feiyun was not in the track and field at this time.

Before, Chen Feiyun came here at about 6:25, which had become a habit, so before he arrived, he concluded that Chen Feiyun had not come to the track and field.

After waiting for a while, I finally found Chen Feiyun's figure at the entrance of the track and field, and hurriedly came to the other party's side, without extra nonsense, I began to do some preparatory actions before exercising, twisting my waist and pressing my legs, and after doing these preparatory actions, the two began to run around the track.

After Chen Feiyun ran six laps, he found a place to do it and began to rest, as for Shang Yiyun, he was still running around the track to exercise, six laps was just an appetizer for him, he had to run twelve laps around the track every day, although with his physical strength, he could run more laps, but for him, just a moderate amount

After the workout, the two went to breakfast together, and then went back separately.

After leaving Huaguo Normal University, Shang Yiyun returned directly to Kyoto University, and he had to do experiments this morning, so he didn't stay at Huaguo Normal University for long.

It's only seven twenty now, and there is still some time before eight o'clock, but there is nothing to do to go back to the dormitory, so he is going to go directly to the laboratory to wait, because he has the key to the laboratory, so he does not need to wait outside the laboratory.

Waves of people in the laboratory came, but they didn't see Cao Xun and Zhang Liu, but it was not yet eight o'clock, and the two had not yet come to the laboratory, which was understandable.

When it was close to eight o'clock, the two of them came to the laboratory, and they really stepped on the point, seeing this situation, Shang Yiyun was a little speechless.

Now that the people have come, the next time is naturally to start experimenting.

The performance of graphene vanadium oxide battery is very excellent, the chemical properties, energy density and structure of vanadium oxide make it the best active material known as an organic layer and aqueous solution lithium battery, of course, this material is not perfect, due to the high charge transfer resistance of the material, its cycle performance is poor, after adding graphene material, this problem can be solved, adding different proportions of materials, it will have different effects.

In previous experiments, Shangyiyun synthesized vanadium dioxide-graphene cathode materials with different vanadium dioxide content ratios, 84%, 78%, and 68%, and in the composite materials synthesized with 78% vanadium dioxide content, the reversible capacity of the battery when discharged at a rate of 1C reached 415 mAh/g.

In addition, if the battery is fully charged or discharged in 43 seconds and 19 seconds at 84C and 190C discharge rates, respectively, and the reversible capacity of the composite material reaches 222 and 204 mAh/g respectively after 1000 charge-discharge cycles, so it can be concluded that vanadium dioxide-graphene material can be used as a cathode material for lithium batteries with excellent performance.

This is the result of previous research, but it failed to make graphene vanadium oxide batteries, but with these things, the previous experiments are also considered to be very fruitful.

Today's experiment has learned the lessons of yesterday, so in the process of the experiment, Shang Yiyun was very cautious, paying special attention to the steps that had problems before, just like that, the experiment was carried out step by step, and a layer of fine beads of sweat appeared on Shang Yiyun's brows.

After a period of time, the experimental results came out, and a primary graphene vanadium oxide battery was developed, Shang Yiyun did not expect that the development of the graphene vanadium oxide battery only took such a short time, and he thought that it would take ten days and half a month to study.

Of course, although the time is small, but in the process of development, it took a lot of effort, the previous test, with different proportions of vanadium dioxide content synthesis of composite materials, the performance of the composite materials, with different proportions of verification, nearly 100 times, so the research process, is not simple.

Fortunately, the most basic graphene vanadium oxide battery has been developed, and as long as it is continuously improved, it will definitely be put into practical production and application.

Thinking of this, Shang Yiyun was very happy in his heart, so he turned around and said to Cao Xun and Zhang Liu.

"Now that we've developed the most rudimentary graphene vanadium oxide battery, we believe it's not far from the final product, so tonight, let's go outside the school to celebrate. ”

After saying these words, Shang Yiyun waited for the reply of the two.

At this moment, Cao Xun heard Shang Yiyun's words, thought for a while, and then spoke.

"I don't have anything to do tonight, so agree to the offer. ”

After hearing this, Shang Yiyun looked at Zhang Liu.