For the gift, start research and development of graphene batteries

Chapter 12 Division of Labor
Looking at the expressions of the two of them, Jiang Ming wondered what they were thinking.

It's just that at this time, it's not suitable to reveal the technical status.

"Next, you just need to carry out the work according to my requirements."

"Song Gong, according to the energy density of 600Wh/kg, is there any problem with adjusting the battery formula?"

"There are no other problems, but in terms of cathode materials and anode materials, there may be many more restrictions, and no suitable supplier can provide them."

"As for the positive electrode material, you can design according to the material with the highest grammability that we have in Baineng. As for the negative electrode material, you don't have to worry about it. I will design it alone."

"That way, there's no problem."

Hearing Jiang Ming's words, Song Zhiyi said simply.

"As for Su Lingjuan, please go and apply for 20 slots for me to prepare for the follow-up test. In addition, if Song Gong's new battery cell design is designed, you will arrange to prepare the materials in place."

"The other job is to prepare the corresponding project data, write the project report, and prepare all the materials that can be prepared in advance, so that the data can be filled in directly without major changes."

Jiang Ming was quite familiar with these tasks, and arranged them one by one.

There are only three people in the whole group 2, so everyone has a lot of work.

Not to mention Song Zhiyi's side, adjusting the parameter ratio of the battery cell is not a simple calculation. It needs to be repeatedly calculated and verified with material suppliers and craftsmen.

Choose the most suitable one among hundreds of materials from dozens of mainstream suppliers.

This is related to the ratio of materials and the selection of materials, each of which is extremely cumbersome.

As for Su Lingjuan, her work was not easy. She had to prepare reports in advance, deal with other departments, and coordinate testing resources in advance.

Although everything is not difficult, but all the things are piled on her, a college student who just graduated, which really makes Su Lingjuan a little difficult.

"Uh, okay."

Su Lingjuan actually wanted to say something to refuse, but after mumbling for a long time, she still couldn't open her mouth.

After all, Jiang Ming's task as the team leader was the most important task compared to his own work of sorting out the materials.

The work Jiang Ming arranged for himself was to modify the negative electrode material to increase its energy density as much as possible.

At the same time, under the bottleneck limitation of positive electrode materials, break through its limit.

After the work was arranged, everyone went to work on their own affairs.When the next project meeting, report their progress.

Time was running out, so Jiang Ming came to the laboratory to arrange the transformation of negative electrode materials.

After all, graphene anode materials cannot be bought under the existing technical conditions.

Since he couldn't buy it, Jiang Ming planned to make it himself.

It's not that Jiang Ming didn't want to find a supplier in the past, but considering the confidentiality of the technology, he gave up this plan.

Anyway, the first samples of batteries are not made much, and the materials to be processed are limited. Jiang Ming plans to make them himself.

In the laboratory, Jiang Ming opened a bag of graphene materials.

Looking at the dark and inconspicuous powder, Jiang Ming was a little emotional.

As for this thing, when it was first developed, Xia Guo didn't know how to produce it. It was purely imported, and the market price was tens of thousands of dollars per gram, which was much more valuable than gold.

How long has it been since Xia Guo has his own technical capabilities, and after mass production, the cost of materials will drop straight down.

Now it's really the price of cabbage.

The material of graphene is cheap, but it is very difficult to make it into the negative electrode material of lithium battery.

Compared with traditional graphite materials, graphene has a more complex structure.At the molecular level, there is a wider space, and its space utilization rate is more than a thousand times higher than that of traditional graphite.

To give a popular example, the traditional graphite is a one-story house. Although its land area is there, the total living area is actually only one floor, and the space utilization rate is very low.

But graphene is different. It is a proper building, or the kind with dozens of floors.

In the unit area, the usable space is greatly enhanced.

The internal performance is an increase in space utilization, and the external performance is that its ability to conduct electricity and heat is greatly enhanced.

In fact, it is used as a heat dissipation medium, which is the only important use of graphene.

It's not that researchers don't know the benefits of graphene, but how to use it is a problem.

Now Jiang Ming is using a special method to utilize graphene materials.

This involves sophisticated technology.

Of course, the method that Jiang Ming mastered seems to be high-end, but in fact it is very simple in principle, but the researchers don't know how to use it.

Specifically, it is to reduce the space of the graphene material and compress it to further increase its energy density.

Graphene is originally a high-rise building. When it is compressed, it is folded, and the substances in it are also stored.The volume it occupies is correspondingly reduced.

When it is used, the lithium ions stored in its structure are released one by one, realizing the need to increase the energy density.

Of course, it sounds simple in principle, but it is extremely difficult to implement it.

Because graphene itself is an extremely stable material, it is more difficult to artificially change its structure.

This is also the key direction of countless enterprise research.

And Jiang Ming grasped this key.

According to the technology obtained by Jiang Ming, when the graphene material is heated to 550 degrees to [-] degrees, nickel powder can be added to it to compress its spatial structure.

The specific compression ratio is determined according to the number of graphene materials, the amount of nickel powder added and the temperature.

Its ratio is a constant called House's constant.

As for how the House constant came about, although Jiang Ming had seen it, when he saw the formula of dozens of numbers, Jiang Ming's head suddenly became dizzy, and he lost the courage to study it.

As long as you know how to use it, you're fine, and nothing else matters.

As for the consequences of not following this constant, Jiang Ming has already tested it.

Either the material has not changed, or the material has become dark, completely lost its proper luster, and is scrapped.

Therefore, Jiang Ming also experimented for a long time, and finally produced a few kilograms of graphene negative electrode material.

Looking at the graphene negative electrode material in his hand, Jiang Ming also heaved a sigh of relief.

The preparation process of this material is really a bit tiring.

If it weren't for the graphene negative electrode material that is the key, it must be produced, and Jiang Ming would not be willing to waste his energy on it.

This is really not something people do, even if Jiang Ming has mastered the principle.

(End of this chapter)