Chapter 303 I Want to Hear His Opinion

The deposit for the purchase of the instrument is directly transferred from the overseas account of Xingkong Technology to the account of the European instrument manufacturer. After Qian Zhongming goes there to sign, the remaining balance will be transferred to the account of the other party.

At the same time, the purchased equipment will also be sent to Jinling through a special transportation company.

The total value of the instruments on this batch of purchase lists exceeds 50 million US dollars, which is more than 300 million yuan when converted into RMB.

Considering the importance of these instruments, Qian Zhongming didn't procrastinate. On the day he took up the job, he ordered a ticket for the next day, and flew to Europe with Liu Bo.

And Lu Zhou was not idle here. On the third day after Senior Brother Qian went to Europe, Jinling University held a seminar.

The scale of this seminar is not small, not only professors from Jinda University, but also colleges and universities of the C9 alliance such as Yanda University, Mizuki University, Zheda University, Aurora, etc. Professors in the field of synthesis, as well as engineers from battery companies such as BYD, also participated in the meeting.

Different from academic conferences like the MRS conference, this seminar is semi-academic in nature, and does not exchange research results, but discusses research and development directions.

In addition to scholars and professors studying lithium battery materials, the participants also included representatives of the National Research Fund, representatives of new energy companies such as BYD and Shanke, and project R&D engineers.

As for the topic of discussion, it can be seen from the lineup of the participants that it is naturally lithium-sulfur batteries.

As an internationally renowned scholar who solved the problem of lithium dendrites, Lu Zhou naturally also participated in the meeting.

The meeting started at ten o'clock in the morning, but it's only nine o'clock now, and the conference room is already full of people.

It seems that because we know that this subject is very difficult and the task is arduous, everyone's expressions are very serious, and the atmosphere in the conference room is also very depressed. Even though it was full of people, not much sound could be heard.

Sitting on the seat with his own name tag, Lu Zhou took a sip of the mineral water bottle he developed, and took advantage of the gap before the meeting to observe the expressions on the faces of his colleagues.

Overall, things don't seem particularly rosy.

It was about half past nine, and Mr. Lu exchanged a few words with the academician of the Chinese Academy of Sciences next to him in a low voice.

Seeing that almost everyone had arrived, he straightened the microphone, cleared his throat and said.

"Since everyone is here, let's not waste precious time waiting."

The whispering stopped, and the meeting room fell silent, waiting for Mr. Lu to continue.

"...Energy is the lifeblood of industry. Whoever masters new energy will master the future. The task this time is very arduous, and it is related to our country's strategic layout in the field of new energy."

"In the last meeting, the high-level leaders in Shanghai have decided to focus on lithium-sulfur batteries as the development direction, but we still need everyone's wisdom on how to solve more specific technical problems."

"In this seminar, the discussion is mainly about ideas for solving problems."

"If you have any good opinions, I hope everyone can brainstorm, speak up, and put forward your own opinions."

At the meeting, Mr. Lu, as the host of the meeting, made a brief opening speech.

On the surface, this meeting seems to be useless. What everyone is discussing is not the existing results, but the ideas to solve the problem. But in fact, the way to do it is far from being as simple as a layman thinks.

The scientific research funds of the state and enterprises are limited, and not all projects can apply for sufficient research funds.

Generally speaking, if the country determines the general direction of lithium-sulfur batteries, then in the application of vertical topics, the topics of lithium-sulfur batteries will be relaxed, and other research topics such as lithium-air batteries will be tightened.

The same is true for research.

To solve the shuttle effect of lithium-sulfur batteries, we can start with the positive electrode material or the electrolyte, and then subdivide it down, and there are thousands of methods.

However, bureaucrats in the Ministry of Science and Technology and the Ministry of Finance are not academic.

But it doesn't matter if they don't understand, they don't need to understand. When making decisions, they often refer to the opinions of some industry leaders, formulate a macro direction in decision-making, and give priority to ensuring that topics in this direction can receive sufficient research funding.

Under such macro-control, there are always some potential research projects that can incubate high-quality results.

It is precisely because of this that the importance of this kind of seminar is highlighted.

From a personal point of view, everyone naturally hopes that their research direction can receive more policy and funding support.

It is precisely because of this that although the atmosphere before the meeting was very depressing, after the meeting, the discussion was quite active.

The first one to speak was Professor Wang Haifeng from Zheda University.

After getting up, Professor Wang smiled kindly and said.

"Since Director Lu has said it, everyone will brainstorm and speak freely. Then I'll throw bricks and talk about some of my humble opinions."

"Our research team discovered a highly ordered nanostructured carbon-sulfur cathode structure in the experiment, which can use the carbon material structural framework to limit the dissolution of sulfur during charge and discharge, thereby effectively curbing the shuttle effect."

There was no empty talk, and Professor Wang presented the existing research results as soon as he came up, improving his persuasiveness.

For Professor Wang's opinion, Mr. Lu immediately expressed his attention, and asked with a serious expression: "What about the cost? And the energy density? Is this technology reliable?"

"The cost is not expensive, and the energy density is quite impressive. The theoretical energy density I measured in the laboratory is close to 2000Wh/kg, far exceeding the lithium-ion batteries commonly used in the industry today. I published related papers in Materials Science The top journal "Advanced-Materials", but this technology is not perfect and needs to be improved."

After a pause, Professor Wang continued.

"In fact, the key to solving the shuttle effect of lithium-sulfur batteries, the current mainstream practice in academia is to use porous carbon materials to block polysulfide ions and reduce the loss of sulfur dissolution. My suggestion is that we can use similar ideas to combine The focus of R&D is on sulfur-carbon composites."

Elder Lu nodded seriously.

The secretary sitting next to him was quickly taking meeting minutes in his notebook.

After Professor Wang finished his speech, he smiled and nodded to his peers, and sat down.

But before he sat on the stool, a calm and steady voice came from the professor's seat.

"I also have something to say."

The speaker was Academician Wu Shigang from Aurora, who, like Professor Wang, is also a big cow in the field of materials science.

Seeing this old man, Mr. Lu said respectfully.

"Academician Wu, please speak."

After straightening the microphone, Academician Wu pondered for a moment before speaking.

"When I participated in the 863 project and conducted research on issues related to lithium-sulfur batteries, I actually considered carbon-sulfur composite materials. This strategy seems to be very effective academically, but its practical effect is very limited."

"The research work in the laboratory is based on very small button batteries, the electrodes are very thin, and the sulfur load is not high. level, and the electrode is very thick, and the unit sulfur loading is very high.”

"The sulfur/carbon composite material that can be cycled 1,000 times in the laboratory can only be cycled a few times in the actual battery, and sometimes it can't even be discharged once."

"Moreover, the most fatal common problem of carbon-sulfur composite materials is that the volumetric energy density is not high. If it is a battery for 3C products such as computers and mobile phones, it is okay to use carbon-sulfur composite materials as the positive electrode. If it is a car or larger It's hard to say."

The old man has been doing research in this area since ten years ago, and because he is a scholar born as an engineer, he pays more attention to the actual value of a technology than a scholar who is good at theory.

Moreover, he is working in the direction of solid electrolytes.

However, Professor Wang suddenly became unhappy.

However, it was not him who came up to refute, but another professor who was engaged in the field of carbon-sulfur composite materials, and what he said was well-founded.

"You are right, sulfur-carbon composites do have flaws in this regard, but in my opinion, these flaws can be resolved through repeated experiments. A year ago we all thought that lithium batteries were unstable, But now? Who can doubt the bright future of lithium batteries?"

Lu Zhou: ...?

Lu Zhou, who didn't want to intervene in the bullying, sat there without saying a word, but was shot for no reason.

The meeting was very lively.

Although it is not as direct and tragic as the MRS meeting, but with a little effort, you can hear the bright and dark arrows in the words.

Lu Zhou, who was sitting in the front row, sighed in his heart.

Fortunately, the system's scanning gun saved him a lot of research and development costs, and the lithium dendrite technology was also sold at a good price. Otherwise, at this moment, he might have to bite the bullet and join this battle.

Just then, another professor spoke.

"Let me also say a few words."

The speaker this time was Professor Sun Hongbiao of Shuimu University.

In terms of lithium battery materials, Shuimu University's international ranking is slightly lower than Aurora and Yanda, but its influence is quite large.

However, his speech was a little different from the big bulls who spoke before.

The old professor coughed lightly, and spoke unhurriedly.

"I noticed that Professor Lu has not spoken, but judging by his expression, he seems to have a plan for this issue. I have nothing to say when I got up, I just want to hear his opinion."

Lu Zhou:? ? ?