Yangcheng, in GAC Aian battery factory.

In the laboratory, several researchers are analyzing the sem of the pre-embedded lithium nanosilicon material needed for batteries.

"From this figure, the particle size of li3n we obtained is 0.5-3 micron, the particle size of sio0.9@c is 1-5 micron, and the particle size of pan@s is about 200 nanometers, but its distribution is relatively uneven and does not meet the technical requirements in the operating manual."

"Look at the figure 6 below. This is the cycle performance diagram of pan@s for lithium. This figure shows that the current density of this composite positive electrode has a specific capacity of only about 600mah in the first round, and only 400mah after a hundred cycles, and the electrochemical stability is very poor."

"If we follow this technical indicator, the battery we subsequently made cannot reach the 900wh of the pre-order target, and may not even reach the 700wh."

"What's even more serious is that the energy attenuation of this battery is too serious, and the problem of sulfide soluble in the electrolyte still exists, and the impact is quite large."

"Everyone, all our laboratory operations are strictly in accordance with the technical manual, but the final results we have now come up with absolutely no match. This is a very serious problem. I would like to ask you to check your own processes again to confirm whether there are any missed or wrong operations. If there is any, please propose it as soon as possible and restart the trial production. Don't press until the end if there is a problem before finding someone to take the blame."

"I hope you all make it clear that this project is not a project of our company, but a national-level project! No matter what mistakes you make during the process, as long as you can correct them in time, it will not be a problem. But if these mistakes are not discovered and eventually lead to the project postponement, it is a serious dereliction of duty. Do you understand?"

Several researchers on the side looked heavy. They looked at the analysis pictures on the screen with their brows tightly, and flipped the operation records in their hands, but after a few minutes, no one found out the problem.

A young researcher said:

"Team leader, I have checked my process countless times, and I really can't find the problem. Please be sure of this. Although I am young, I can't be confused about such things."

Hearing his words, other researchers also agreed.

"Yes, mine has also been checked, but I really didn't find any mistakes. Moreover, not only the process, but also all the materials have been checked. They are all materials that meet the requirements. Even after the last problem, we specially analyzed the materials and verified the accuracy of the component measurement, which is definitely reliable."

"Mini... can't see the problem, but I always feel something is wrong."

"Can it be that there is a problem with this process itself? To be honest, when I took on this project, I specifically compared the current mainstream processes, which are quite different from the ones we have at hand."

"I also think there may be problems with the process - or the process itself is fine. Could it be that the documents we have obtained are wrong or omissions? I have sorted out the entire process of the process. Except for some process accidents that have no empirical basis, all other steps are logically self-consistent. I feel that there is still a high possibility of stable error or omissions."

Hearing the researcher's words, the team leader's face also began to look hesitant.

Indeed, as they said, he himself has already controlled the overall process to the second level, and is confident that he has never missed any step. The materials they used have been inspected and even specially transported from the reserve warehouse, so problems are almost impossible.

But now the facts are indeed right in front of you:

The performance of the battery is completely inconsistent, and this failure is not within the range that can be explained by the error rate.

To put it bluntly, what they created is completely different from what is described in technical documents.

If the battery described in the technical documents is compared to a supercar, then the most they can make can only be considered a jumper car.

Although this jumper car can run 2,000 kilometers, it is far worse than a sports car in terms of speed and comfort.

"Will there be a question of transition metal composition? Do you have any oxidation data for testing metals before using transition metals? If exposed in a non-vacuum environment for too long, even a very thin layer of oxide will affect the overall performance of the material."

"All checked, all were made in vacuum, no problem."

After checking this, the team leader felt that he had basically done everything he could do.

All the possible problems he could think of have been eliminated, so the only possible answer is: there is a problem with the technology.

Thinking of this, he spoke:

"You guys will conduct a laboratory trial production again. Remember to take the temperature conditions into account this time--the technical manual does not have this requirement, but it may also have an impact."

"Team leader, this shouldn't be... If the preparation conditions are so harsh, then this product will have no potential for scale. Why don't we just report it to our superiors first?"

The team leader nodded and replied:

"I will report it to my superiors, but you should do what you should do first, and try to eliminate all the wrong answers."

As he said, he turned around and left the laboratory.

He is now going to hold an emergency meeting of the core management of the project team immediately to reflect the situation facing the laboratory.

Time is very tight, and in less than 10 days, this battery must be completed and launched. According to the original plan, it must be adapted as their latest magazine battery cell.

This adaptation process takes at least three days, so it is only less than three days left for them.

Thinking of this, his pace couldn't help but speed up a little.

.........

Two hours later, the General Technical Office received a message that the battery trial production failed. After confirming that the problem could not be solved, all relevant technical documents and operation records were submitted to Ye Zhou, waiting for his further guidance.

Everyone thinks this is a difficult difficulty, and Chen Hao has even begun to start the backup plan and is preparing to delay the battery release time.

After all, during the year he worked with Ye Zhou, no matter which project it was, the technical documents received by the project team had not encountered any problems. Perhaps he would face various difficulties in materials, process, accuracy, etc. during the manufacturing process, but the documents were never missed.

But this time, based on the current conclusions of all experts, they have to think that this is a craftsmanship error.

"... Such problems are also inevitable. Ye Zhou has provided so many breakthrough technologies in a short period of time, and the span is extremely large, and the errors are being cleaned up."

"And I have communicated with the relevant staff. In fact, even if the release of this incomplete version of the battery they have completed now is still a big breakthrough for the international battery industry."

"If we can have more time in the future and transform and optimize the process at hand, it will not be difficult to achieve the goals proposed by Ye Zhou at that time."

"However, we have not yet developed this step, mainly because we don't know how difficult it is."

After listening to Chen Hao's words, the man with the star emblem on the screen nodded and replied:

"The situation is clear. From my point of view, this is not a failure. At most it is not achieved.

"We will wait for Ye Zhou's reply to this matter and see what he says. However, if he cannot come up with a solution in the short term, we should not put too much pressure on him."

"We can rely on some things, and we have to work hard on ourselves."

"clear."

Chen Hao nodded and replied.

"Then let it be. Go down and call Ye Zhou. According to my understanding of him, he should have read all the documents you submitted..."

However, before he finished speaking, Chen Hao's cell phone rang opposite him.

Chen Hao glanced at the contact person above and said:

"It's Ye Zhou."

"Come on, I'll listen together."

Chen Hao nodded and answered the phone.

Before he could speak, Ye Zhou heard a sound of exhaustion on the other end of the phone:

“The mass of s powder and polyacrylonitrile is not linearly related to the ethanol ratio required during the ball milling process.”

"100g of S powder requires 400r to grind for 6 minutes, but 200g is not as simple as 400r to grind for 12 minutes."

"There are coefficients here. For every step of the grinding time and rotation speed, the proportion of ethanol infusion increases by more than one step. Similarly, the decline is the same."

"Let them check this process by themselves and calculate the coefficients between the rotation speed and grinding time and the ratio of ethanol, which is basically no big problem."

"Mr. Chen, next time you tell your engineers that some things are not enough to copy the technical documents completely. This point is indeed a very subtle detail that is easily overlooked, but if you are willing to spend time checking the entire process of manufacturing logic instead of just checking the process, you can still find it."

Chen Hao listened to Ye Zhou's words with a little ashamed, and then replied:

"This is my problem. I asked them to process 100% according to the document through the General Technical Office. I didn't expect the difference in this regard. Sorry, I will invite experts to provide guidance next time before making a decision."

"Well, it's best. We don't give technical documents to completely kill our engineers' creativity. We should pay attention to this question in the future, especially when the General Technical Office represents the will of the country and the Engineers in the enterprise represent the will of the enterprise, they will have more concerns during the implementation process."

"We not only need guidance, but more importantly, guidance. Otherwise, if all the small things have to be done by the state, how can we have so much manpower and material resources? Okay, let's just die."

As he said that, Ye Zhou hung up the phone.

Chen Hao looked at the man with Xingqiu on the screen, who smiled and said with some jokingness:

"Look at you, you made a bureaucratic mistake and were criticized?"

Chen Hao smiled embarrassedly and replied:

"Then I'll inform the company now. This is a big deal...it's really my fault. The company has already found that the documents may be unclear, and we haven't made a decision to let them improve on their own."

The man in Xinghui nodded slightly and said:

"Grow up in the mistakes. The General Technical Office has just been established. There must be problems in both coordinating leadership and executive management. Take your time, it doesn't matter."

After saying that, Xinghui's man also hung up the video call.

Chen Hao picked up his phone and was about to call GAC to notify the situation. When the screen of the phone lighted up, his call record with Ye Zhou automatically appeared.

At 17:15, he informed Ye Zhou that there was something wrong with the trial production.

At 17:36, he received Ye Zhou's solution.
Chapter completed!