After spending an hour in Chen Dezhi's office, Shang Yiyun left the place.

It was now noon, and Shang Yiyun was going to the cafeteria to solve the lunch problem, and then he returned to the dormitory and began to write the materials for applying for a patent.

Applying for a patent is not a trivial matter, and it requires adequate preparation.

However, this is not the first time for this kind of thing, and he has passed three patents before, so he has no worries in his heart.

Now that the research on graphene vanadium oxide batteries has been completed, this afternoon, he is going to write the materials for the patent application, and wait until the materials are written before thinking about other things.

When he returned to the dormitory, he found that his roommate was not in the dormitory, and seeing this situation, Shang Yiyun could only open the door and walk in.

After entering the dormitory, I put the books back on the shelves, and then turned on the computer and started writing.

There is a fixed template for the materials to be patented, so he needs to edit some content on the template, then print it out, and finally submit the materials and wait for the results.

While writing, Shang Yiyun said goodbye to his casual state and became focused, and as time passed, he kept tapping on the keyboard, and there was already a lot of content on the computer screen at this time.

The patent application needs to write a lot of things, and the two professors Xu and Wang were responsible for it before, but now he prepares it himself, but he also understands the twists and turns.

The examination and approval process of invention patent application is mainly as follows: patent application, acceptance, preliminary examination, publication, substantive examination request, substantive examination, and authorization.

As for the documents that need to be submitted to apply for an invention patent, there are four main aspects.

The first is the request: including the name of the invention patent, the name of the inventor or designer, the name and title of the applicant, the address, etc.

The second is the description: including the name of the invention patent, the technical field to which it belongs, the background art, the content of the invention, the description of the drawings and the specific embodiment.

The third is the claims: describe the technical characteristics of the invention and clearly and concisely state the content of the claimed protection.

Fourth, the drawings of the specification: invention patents often have drawings, if only words are enough to clearly and completely describe the technical solution, there can also be no drawings.

This is the complete patent application process, and the materials he has to prepare before include the request, description, claims, and drawings of the specification.

After nearly two hours of preparation, he finally finished everything, and the next thing to do was to send these materials to the place where the patent application was approved.

In the previous patent applications, he accompanied Professor Xu throughout the process when he sent the materials, so he knew where to send them.

Looking at the time, it was not yet three o'clock, and he was ready to complete the patent application as soon as possible, only in this way could he ensure that nothing went wrong.

Copy these documents to a USB flash drive, Shang Yiyun took the USB flash drive and came to a printing shop in the school, because it was 2:40 p.m., and many people were in class, so there were not many people in the printing shop at this time.

After a casual look, he found that there were only a few people, and there was still an empty seat at this time, so Shang Yiyun hurriedly sat down, and then plugged the USB flash drive into the computer.

Copy the file you want to print to your desktop, set the format for printing, and start printing.

After printing all the documents and sorting them out, I found that I had printed more than 10 sheets in total, because the format he set was color printing, so the price of the paper was slightly more expensive, and it took nearly 20 yuan in total.

After paying the money, Shang Yiyun took these printed documents to a place where he sent the couriers, and he and Professor Xu were also here before, sending the documents.

told the staff the mobile phone number and the address to be sent, and after waiting for a while, Shang Yiyun was relieved to see that the other party had completed all the steps.

Whether the patent application can be successful or not will have to wait, but with previous experience, he believes that this patent application will be successful.

The matter has been settled, and in the next time, Shang Yiyun is ready to make an appointment with Cao Xun and Zhang Liu to discuss the follow-up research.

Of course, he will not immediately devote himself to research, the research of graphene vanadium oxide battery was completed in only three weeks, and now there is more than a month before the holiday, so after a day or two of rest, he will devote himself to new research, which is his current idea.

However, there is no problem in discussing the next research in advance.

Shang Yiyun called Cao Xun and Zhang Liu, at the beginning he asked the two if they had time at this time, and when it was determined that the two had free time, he explained the purpose of the call, and asked the two to go to the school library at half past three.

Now there was still half an hour before the appointed time, and since the matter had been completed, there was no need for him to stay here, so he left the place where the courier was sent and prepared to go to the school library.

At this time, it was close to summer, and it was about three o'clock in the afternoon, so the temperature was a little hot, and walking on the road to the campus, you could see many women in cool clothes, exuding temptation.

However, for this situation, Shang Yiyun paid a little attention, and began to look ahead, no longer watching those tempting pictures.

When he came to the school library, he went directly to the place agreed with Cao Xun and Zhang Liu, and when he came to that place, he found that the two had not yet come here, and in the face of this situation, he could only wait.

After waiting like this for more than ten minutes, Cao Xun and Zhang Liu finally came here, so he greeted the two.

"I asked you to come today because I want to discuss the next research, my plan is to successfully research another battery within a month, I don't know if you have confidence. ”

Speaking of this, Shang Yiyun looked at the two of them, wanting to hear what they thought.

Cao Xun and Zhang Liu thought for a while, and finally Cao Xun spoke first.

"I think it is very possible to successfully research another battery within a month, after all, the research of graphene vanadium oxide battery, we only took less than three weeks to complete the research, and more importantly, I have confidence in you." ”

Speaking of this, Cao Xun seemed to think of something, and a relaxed expression appeared on his face.

"I agree with Cao Xun's statement that the previous study took less than three weeks, and even if the next study is more difficult, one month is enough. ”

Zhang Liu also expressed his thoughts.

After listening to it, Shang Yiyun found that the answers of the two were very consistent, and they both believed that they could complete the research within a month.

To be honest, Shang Yiyun is also more confident in his heart, this kind of research on new energy vehicle batteries is not a research of this level of neutrino communication technology, if it is the latter, he is not confident that he can complete the research in a month, but if it is the former, he is still confident.

Since the two of them are so confident, Shang Yiyun will not dampen their enthusiasm, and he came here today mainly to discuss, and he hopes that the two of them can give him some surprises.

Although he already had an experimental plan in mind, he also wanted to give the two of them a chance.

In the following time, the three of them began to discuss graphene iron phosphate lithium-ion batteries, which are a new graphene batteries, which are very different from graphene vanadium oxide batteries, so the previous research experience is not applicable to the research of graphene iron phosphate lithium-ion batteries.

Cao Xun and Zhang Liu fell into contemplation, the level of knowledge and ability of the two was fine, but when they recalled the relevant knowledge of graphene iron phosphate lithium-ion batteries for a while, the two still did not have this ability.

After thinking about it for a while, Shang Yiyun saw the relaxed expression on Cao Xun's face, and he understood what the other party had already thought, so he was ready to listen to what Cao Xun could have unique insights.

In this way, time passed slowly, and the two stopped thinking and began to express their opinions.

The first to speak was Cao Xun, Shang Yiyun saw the other party's expression just now, so he was looking forward to it now.

"Lithium graphene iron phosphate (LFP) batteries, cathode batteries with LFP as the cathode material, are regarded as the most suitable next-generation electrochemical energy storage technology to replace lead-acid batteries due to factors such as their price, safety and power characteristics. ”

"As an emerging carbon material, graphene has a perfect two-dimensional structure, ultra-high specific surface area and electrical conductivity, and graphene modification or coating can significantly restrict the particle size of LFP, form a conductive network, improve the conductivity of the material, increase the rate performance and maximize the material capacity. ”

In addition, the use of graphene, a two-dimensional material with ultra-high specific surface area, can improve the utilization rate of LFP, and the unique network pore structure of the composite can shorten the ion diffusion distance and increase the specific capacity of the material. ”

Speaking of this, Cao Xun stopped and did not continue to explain.

"Let Zhang Liu tell me about the next content, I said a lot, and I have to let others show it. ”

Hearing Cao Xun's words, Shang Yiyun was also a little helpless, but since the other party said so, he listened to what Zhang Liu would say.

At this time, Zhang Liu also heard Cao Xun's words, and felt a little grateful, he was worried just now, if Cao Xun finished saying what he wanted to say, and then he couldn't say anything else, wouldn't it be very embarrassing, but now he has no worries.

"It has been found that the interfacial bonding between graphene and LFP is stable in the parallel direction, and the insertion of interfacial lithium atoms can significantly improve the capacity of graphene-modified or coated high-specific surface area LFP, and the interfacial binding strength of graphene and LFP surface parallel orientation is enhanced with the increase of interfacial lithium atomic weight. ”

"The electronic conductivity of the LFP surface is weakened when the lithium is inserted into the interface, while the doped LFP lithium surface maintains good conductivity at the early lithiation stage, however, stable polarons are formed on the surface of the semiconductor LFP during lithiation, and some studies have found that graphene modification and manganese doping have a positive effect on the oxygen stability of the surface. ”

"The capacity of the graphene-modified LFP cathode material can reach 208mAhg, and this ultra-high specific energy is due to the graphene modification with a mass percentage of 2%, which has a specific capacity of 2000mAhg, assuming that each carbon atom can store one Li ion and can provide such a huge specific energy. ”

"In the corresponding charge-discharge profile, a specific capacity exceeding the theoretical capacity of the LFP was achieved while the charge-discharge potential remained constant, and the graphene used in this study was a commonly used sample and was not specially treated. ”

......

At this time, Shang Yiyun fell into thought after listening to what the two of them said, and he also knew in his heart that the things the two talked about were only a few knowledge points, which he had not understood before, but most of the content he had understood in the book.

However, he was quite satisfied that the two of them were able to speak to this extent, and before he came, he had no hope that the two would be able to say any unique opinions.

Next, Shang Yiyun told his own opinions, and he also had opinions, naturally not the content of what the two of them talked about just now can be compared, this is the knowledge point he summed up after reading many books.

At this time, Cao Xun and Zhang Liu heard what Shang Yiyun said, and they clearly realized the gap between them and Shang Yiyun.

In this way, the three of them talked for an hour and preliminarily determined the next research plan, of course, this research plan needs to be sorted out by Shang Yiyun, Cao Xun and Zhang Liu asked themselves if they have this ability.

After confirming these things, the three of them left the school library, and as for the time when the next research would begin, it was set for two days later.

Leaving the library, Shang Yiyun prepared to return to the dormitory and write out the experimental plan, he had to rush out this evening, and then print out two copies of the document tomorrow and hand them over to Cao Xun and Zhang Liu respectively.

He hoped that the two of them would be able to familiarize themselves with the protocol before the experiment, so that when the next experiment was carried out, the first experiment would be easier regardless of success or failure.

Thinking of this, he quickened his pace and prepared to return to the dormitory as soon as possible.

Walking on the road to the campus, nothing happened, and it took seven or eight minutes for Shang Yiyun to return to the dormitory.

When he returned to the dormitory again, he found that his roommate had returned, and it was right to think about it, there was no class in the afternoon, and Shen Fengyu had some unpleasant trouble with his girlfriend recently, so he had no motivation to leave the dormitory.

For this situation, he had already expected this situation, so his heart did not fluctuate, but went directly back to his place and took out the computer.

After turning on the computer, he began to write the experimental plan, and now it is 5 o'clock in the afternoon, and he will finish this experimental report this evening.

This kind of thing is not too difficult for him, because before going to the library, he already has a rough experimental plan in mind, and after discussing this experimental plan, it becomes clearer and clearer.

Now that he was going to write out the experimental protocol, he opened a piece of software and started writing, and with the sound of clicking on the keyboard, some characters quickly appeared on the computer screen.

At this time, Shang Yiyun's typing voice was relatively loud, but his roommate had already adapted to it, so he did not protest.