Qin Hai is a person who has been in the cattle circle for many years, he knows very well that cattle people are easy to get infected with an invincible disease, and the only way to cure this problem is that you are better than him, and use your strength to convince him.

Caan is a bull, at least in Brazilian material circles, he is qualified to put on the score. It is precisely because he has no opponents that he will be empty-eyed and hope that everyone will do things according to his thinking. When he encounters setbacks, he will not examine what he has done, but will only put the blame on the "mediocre" in his mind. There is no shortage of people with this kind of problem, ancient and modern, Chinese and foreign, and if this kind of problem is not cured, no matter how good the person is, it can only become a factor of social instability.

Because he understood this, Qin Hai was not in a hurry to listen to Ka'an's narration, but found a few papers published by Tranquility and made copies of them in the hotel's business center, specially keeping them for Ka'an to read. They came out for their honeymoon this time, and they originally had the intention of meeting some academic colleagues, so Tranquility brought a few masterpieces with them, and now they took them out to hit Ka'an's self-confidence.

Sure enough, after seeing these articles and realizing that Tranquility was the author of these articles, he wilted all of a sudden. He always thought that only he could think of the principle of iron-based superconductivity, but he didn't expect others to coincide with him. Although he did not study these articles carefully, he could also know that the content of the articles was very rigorous and the ideas were very clear, which meant that the author's theoretical foundation was no worse than his. What he couldn't let go of the most was that the author was actually a young girl. Compared with tranquility, wouldn't he live to a dog at this age?

At this moment, he began to regret it a little. If he hadn't fallen out with the school, if he had been able to get some money to do research, maybe the crown of discoverer of iron-based superconductivity would have fallen on his head. There are mountains outside the mountains, and there are people outside the people, are you too frivolous?

Looking at the look on Ka'an's face, Qin Hai knew that he had taken the right medicine, and Ka'an's self-confidence had obviously been hit. But. In order for Ka'an to serve himself with all his heart, he needs to add some more ingredients. Thinking of this, he smiled and said to Ka'an:

"Mr. Caan. I've heard from my wife that you have some genius ideas for lightning harvesting, and that superconductivity and supercapacitors are the two main obstacles. When it comes to superconductivity, my wife is an expert. We also have a dedicated superconductivity research center at Jingjing University. Mr. Caan, if you are interested, I can introduce you to work there. At present, iron-based superconductivity has not yet broken through the liquid nitrogen temperature region, and the addition of Mr. Caan may play a key role in solving this problem. ”

Kaan nodded lightly and said, "If I can have such an opportunity, I will be more than happy to accept it." It seems that I have overestimated myself, and if possible, I hope that I can become Miss Tranquility's assistant. ”

"Mr. Caan. You're so polite. Tranquility nodded slightly to Ka'an, humbly.

"So. Does Mr. Caan have any thoughts on supercapacitors? Qin Hai continued to ask.

"Yes, I've had some considerations about that as well...... In retrospect, it may have been an outdated idea. Caan replied that he had been quite conceited about his accomplishments in this area, but after experiencing the problem of superconductivity, he had become more cautious in his speech.

"Can you tell us a little bit?" Qin Hai asked.

"Yes." "I don't think I need to introduce the concept of supercapacitors to the two of you, it is nothing more than a capacitor with a larger capacitance than ordinary capacitors, which can reach the super capacitance of the Farad level." When I was doing doctoral research in the United States, I had already seen the supercapacitors that were stored at that time. In the past 20 years, the development of supercapacitors has also been very rapid, if I guess correctly, there are now 1000 farads of supercapacitors in the world. ”

"Your estimate is absolutely correct." Qin Hai interjected. A few months ago, a Japanese company just developed a new type of supercapacitor, which is in the 1000 farad class, but the volume is too large, and there is still a lot of distance from practicality. Qin Hai himself is also developing supercapacitors, and his goal is to surpass the level of Japanese companies and shorten the distance between products and applications as much as possible.

Capacitors are a very common component in ordinary electrical appliances, and as the name suggests, they are devices that can store electrical energy. The unit of measurement of capacitor capacity is farad, and 1 part of a million of a farad is called 1 microfarad, and 1 part of a million of a micro method is called 1 pico. The capacitors used in household appliances have a small capacity of only a few picofarias, and the large capacitance is tens of thousands of microfarads, which is difficult to reach the level of farads. In addition, tens of thousands of micro-method electrolytic capacitors are similar in size to a No. 1 battery, and if the capacity is expanded by 100 times to reach the level of several farads, its volume can be imagined.

The so-called supercapacitor is precisely the need to expand the capacity to the farad level, and generally reach thousands of farads or even larger. In order to make such a supercapacitor, it is clear that it is not simply possible to increase the volume of the capacitor, but to achieve technological innovation. Qin Hai himself had some ideas about supercapacitors, but they were far from enough, so he wanted to hear if the science madman in front of him had a better idea.

Ka'an didn't know what Qin Hai was thinking, he just continued to talk down according to his own thoughts, he said: "According to my research, I think the key to supercapacitors lies in the selection of electrode materials, which need to have a well-developed pore structure, a high specific surface area, stable physical and chemical properties, and in addition, a low cost. According to the data I have seen in previous years, there are no more than three types of electrode materials used as supercapacitors: carbon materials, transition metal oxides, and conductive polymers, and the progress of supercapacitors depends entirely on the development of these three electrode materials. ”

"That's a good point." Qin Hai couldn't help but clap his hands, and then asked with a smile: "So, with Mr. Ka'an's assumption, which of these three types of materials is the most promising?" ”

"Carbon!" Kaan said without thinking.

"If I could provide a carbon material with a high specific surface area, high sign mobility, good thermal and electrical conductivity, and a reasonable price, would Mr. Caan be interested in using it to develop an excellent superconducting capacitor?" Qin Hai asked.

"What material are you talking about?" Ka'an looked at Qin Hai and asked.

"Graphene." Qin Hai said, "This is a two-dimensional carbon material composed of a single layer of carbon atoms, and we have proven that its various physical and chemical properties meet the requirements you just proposed. ”

Speaking of which, Qin Hai just rightly stuffed another copy in front of Ka'an, which was the detailed test report on graphene, and the various numbers on it could be said to be clear at a glance for those who knew it.

After Qin Hai developed graphene, the first application direction that came to mind was the development of supercapacitors. There is a team in the School of Materials that has done a lot of research in this area and has made considerable progress. However, Qin Hai still felt that there was a lack of a competent academic leader, and he wanted to see if the Ka'an in front of him was a suitable candidate.

"The world is changing so fast." Ka'an looked at the information Qin Hai had given him, and let out a sigh again. In his vision, he can naturally see the role of graphene in the development of supercapacitors, this material was only in people's imagination a few years ago, and now not only has a detailed physical and chemical test number, but also listens to Qin Hai's meaning, and has achieved industrial production.

"I think I'm ridiculous." "If I had stayed in school, I might not have missed out on these important inventions." Miss Tranquility, I retract what I have said to you today, and I feel that what I need now is not funding, but to go back and continue to teach. ”

Qin Hai waved his hand and said, "Mr. Ka'an, I don't think there's any point in you going back to that school now, they have rejected the funding for you, if you go back, I'm afraid you can only sit on the cold bench." I think you have unique insights on superconductivity and supercapacitors, would you be willing to go to China with me, and if possible, I hope you can lead a team to develop graphene supercapacitors as much as possible. ”

"What, you guys are really planning to develop supercapacitors out of graphene?" Caan asked. Supercapacitor is also a relatively partial product, although its application range is very wide, but the technical difficulty is also very large, so few companies invest in this area. Hearing that Qin Hai wanted to engage in supercapacitors, Ka'an was a little surprised, but at the same time a little happy.

"Of course, and we're already doing it." Qin Hai replied.

"You ...... Also planning to do a lightning collection system? Kaan asked, hesitantly.

Qin Hai thought for a while and said, "If this project is feasible, maybe we will invest money to do it in the future." But before that, I hope someone can overcome these two key technologies. The use of supercapacitors is not limited to lightning collection, and I think Mr. Caan is very aware of this. ”

"Of course, this is a very promising product for commercial applications." Caan said.

Qin Hai said with a smile: "If Mr. Ka'an is willing to cooperate with me, then you will also get a considerable piece of this business cake in the future." ”

"To China?" Kaan patted his head, then laughed, "I really didn't think I'd have to work in China in my lifetime, but it seems like a good idea. If I nod, should I call you my boss? ”

"I'd rather you call me a collaborator." Qin Hai said, stood up and solemnly stretched out his hand to Ka'an, and said, "I hope we can cooperate happily." ”

"Happy working together!" Ka'an also stood up, held Qin Hai's hand tightly, and said excitedly. (To be continued......)