The deposit for the purchase of the instrument is directly from the overseas account of Star Technology to the account of the European instrument manufacturer. After Qian Zhongming goes there to sign the word, the remaining payment will be hit on the other party's account.

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

The total value of the instruments on the purchase list is more than 50 million US dollars, which translates into more than 300 million yuan.

Taking into account the importance of this batch of instruments, Qian Zhongming did not delay, on the day of the job, he ordered the next day's ticket and flew to Europe with Liu Bo.

Lu Zhou was not idle here. On the third day of Qian’s brother’s trip to Europe, Jinling University opened a seminar.

The specifications of this seminar are not small, not only professors of Jinda, such as Yanda, Shuimu, Fuda, Aurora and other c9 alliance universities, as well as a group of 211 science and technology schools such as Jinling Polytechnic University. Professors in the field of synthesis, as well as engineers from battery companies such as BYD, also participated in the conference.

Unlike the academic conferences of the m conference, this seminar is semi-academic in nature and does not exchange research results, but rather discusses research and development.

In addition to scholars and professors who study the direction of lithium materials, participants also represented representatives of national research funds, as well as representatives of new energy companies such as BYD and Sugi and project development engineers.

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

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

The meeting started at 10 am, but it is only just nine o'clock. The conference room has been crowded and packed.

It seems that it is because the task is very difficult and the task is arduous. Everyone's expression is very serious, and the atmosphere in the conference room is also very depressed. Even if you are full of people, you can't hear too much.

Sitting in the seat with his famous brand, Lu Zhou twisted the development of the mineral water bottle to take a sip, taking advantage of the gap before the start of the meeting, observing the expression on the faces of the peers.

In general, the situation does not seem to be particularly optimistic.

About 9:30, Lu Lao and the next Chinese Academy of Sciences academicians whispered a few words.

Almost everyone has already arrived, and he has righted up the microphone and cleared the throat.

"Since everyone is here, we don't waste precious time waiting."

Stopped whispering, the meeting room was quiet, waiting for Lu old to continue.

"...Energy is the lifeblood of industry. Whoever has mastered new energy will have a grasp of the future. This task is very difficult and is related to the strategic layout of our country in the field of new energy."

“At the last meeting, the top executives of Beijing have decided to focus on lithium-sulfur batteries, but they need wisdom from others to solve more specific technical problems.”

"This seminar is mainly about solving problems."

"If there is any good opinion, I hope that everyone can brainstorm and speak up and present their opinions."

At the meeting, Lu Lao, as the moderator of the meeting, made a brief opening remark.

On the surface, this meeting seems to be useless. What everyone is discussing is not the existing results, but the solution to the problem. But in fact, the doorway of this is far from being as simple as the layman thinks.

National and corporate research funding is limited, and not all projects can apply for adequate research funding.

Generally speaking, if the country decides the general direction of lithium-sulfur batteries, the problem of lithium-sulfur batteries will be relaxed in the application of vertical issues, and other research topics such as lithium-ion batteries will be tightened.

The same is true for the study.

Solving the shuttle effect of lithium-sulfur batteries can be started from the positive electrode material, or it can be started from the electrolyte, and then subdivided, and thousands of methods can be separated.

However, the bureaucrats of the Ministry of Science and Technology and the Ministry of Finance do not understand academics.

But it doesn't matter if you don't understand, they don't need to understand. In the decision-making process, they often refer to the opinions of some industry bulls, and make a macro direction in decision-making, giving priority to ensuring that sufficient research funding can be obtained for topics in this direction.

Under such macroeconomic regulation and control, there are always some potential research projects that can breed high-quality results.

It is for this reason that the importance of such a seminar has been highlighted.

From a personal point of view, everyone naturally hopes that their research direction can get more policies and financial support.

It is for this reason that although the atmosphere before the meeting was very depressed, the discussion was quite enthusiastic after the meeting began.

The first to speak up is Professor Wang Haifeng from the big.

After getting up, Professor Wang and Yan smiled and said.

"Since Director Lu said, everyone brainstormed and talked freely. Then I will throw a brick and talk about it, and talk about some of my ignorance."

“Our research team found a highly ordered nanostructured carbon-sulfur positive structure in the experiment, which can use carbon structural framework to limit the dissolution of sulfur during charge and discharge, thus effectively curbing the shuttle effect.”

There is no empty talk, and when Professor Wang came up, he took out the existing research results and raised his persuasive power.

Regarding Professor Wang’s opinion, Lu Lao immediately expressed his concern. The expression asked seriously: “What about cost? Is there 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 2000 wh/kg, far exceeding the lithium-ion battery commonly used in the industry today. Related papers I made in Materials Science In the top issue of "advaned-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 is that the current mainstream practice in the academic world is to use porous carbon materials to block polysulfide ions and reduce the loss of sulfur. My suggestion is that we can adopt a similar approach. The focus of research and development is on sulfur-carbon composites."

Lv Lao nodded seriously.

The secret secretary sitting next to him is quickly making a meeting record in his notebook.

After Professor Wang’s speech ended, he nodded to his peers and sat down.

However, his stool was still not hot, and a calm and steady voice came from Professor Yan’s seat.

"I have something to say."

Speaking from Academician Wu Shigang from Aurora, like Professor Wang, he is also a big cow in the material science community.

Seeing the old man, Lu Lao also said with respect.

"Sir Wu Academician please."

After correcting the microphone, Academician Wu indulged for a moment and said.

“I was involved in the 863 project, and I have already considered carbon-sulfur composite materials when studying related issues of lithium-sulfur batteries. This strategy seems to be very effective academically, but the actual effect is very limited.”

“The research work in the laboratory is based on a small button cell, the electrode is very thin, the sulfur load is not high, and the total sulfur content is about a few milligrams. The actual battery has a large sulfur content, which is generally gram. Grade, and the electrode is very thick and the unit sulfur load is very high."

“The laboratory is able to circulate 1000 times of sulfur/carbon composite material, which can only be cycled several times in actual batteries, and sometimes even one time cannot be discharged.”

" Moreover, the most deadly common problem of carbon-sulfur composites is that the volumetric energy density is not high. If it is the battery of 3c products such as computers and mobile phones, it is better to use carbon-sulfur composite materials as the positive electrode. If it is a car or a bigger one. It’s hard to say something."

Mr. Lao has been doing research in this area since ten years ago, and because he is an engineer born of an engineer, he pays more attention to the practical value of a technology than a scholar who is known for his theory.

Moreover, he is in the direction of solid electrolytes.

However, Professor Wang was not happy at all.

However, it is not him who is refuting, but another professor who is engaged in the direction of carbon-sulfur composite materials, and it is justified.

"You are right, sulfur-carbon composites do have defects in this area, but in my opinion, these defects can be solved in repeated experiments. A year ago we all thought that lithium batteries were unstable. But now? Who can doubt the broad prospects of lithium batteries?"

Lu Zhou: ...?

Lu Zhou, who didn't want to get involved in the big cows, was sitting there and never talked. The result was a shot inexplicably.

The meeting was very enthusiastic.

Although not as straightforward as the m meeting, it is so fierce, but with a little snack, you can hear the dark arrows in the speech.

Sitting in the front row of Lu Zhou, I felt a sigh.

Fortunately, the system's scanning gun saved him a lot of research and development costs, and the technology of lithium dendrite also sold for a good price. Otherwise, at this moment, he may have to join the battle with his scalp.

Just then, another professor spoke up.

"I will also say a few words."

This time, Professor Sun Hongbiao from Shuimu University.

In terms of lithium battery materials, Shuimu University ranks lower in the international rankings than Aurora and Yanda, but its influence is also quite large.

However, his speech is somewhat different from the big cows who spoke before.

I saw the old professor coughing softly and said without hesitation.

"I noticed that Professor Lu has not spoken, but looking at his expression, he seems to have a good idea of ​​this problem. I have nothing to say when I get up, just want to hear his opinion."

Lu Zhou:? ? ?