With a thunderclap on the ground and An Ran’s opening, the whole world exploded.
If it is said that what the Western Technology Group has made is a technological breakthrough, it has broken through the upper limit of traditional lithium batteries and raised the energy density to the end.
Then what Xingchen Technology is doing is a dimensional breakthrough!
They did not waste time on the traditional structure, but broke the limitation of the dimensional wall, started a new stove, and redesigned the structure of the lithium battery. This is like a tiger and a cat. They are both cats, but they belong to two complete different species.
Continuing his high-speed speech, An Ran said with a smile: “First of all, our anode material is not traditional graphite, but silicon.”
“Silicon anode material, the upper limit of theoretical energy density is 3600H, which is much higher than that of graphite, and also has similar chemical properties to carbon.”
“The main defect is that when lithium ions are intercalated, the force between the ions and silicon is too significant, so that the distance between the material layers increases significantly, and the volume of the silicon material continues to expand and shrink during charging and discharging. , can reach 400 percent.”
“This is very deadly. As you can imagine, a battery is like magic, suddenly big and small, which will bring fatal hidden dangers to the stability of the internal structure.”
As An Ran spoke, she demonstrated with her hands, her five fingers separated and then closed into fists.
“A large amount of stress quickly accumulates inside the material, and it is difficult for the negative electrode to work stably for a long time. At the same time, the surface of the silicon material also needs the protection of the SEI film. The real-time change of the volume makes it difficult for the SEI film to adhere to the electrode surface stably for a long time.”
“To solve this problem, we investigated an innovative technology, the carbon core.”
“By the way, we need to mention that in the research of carbon materials, our materials science team of Star Technology has made a historic breakthrough.”
“As we all know, our first-generation and second-generation supercapacitors use high-density carbon materials, and our Karman vortex street power generation array also uses the strongest carbon fiber skeleton in the world.”
“I believe that in the near future, our achievements in carbon materials will be applied in more fields, please wait and see!”
Anran did not hesitate to call for its own material science team, because the material science of Xingchen Technology is really awesome, and it is the best team in the world for carbon materials, bar none.
And after a generation of genius Cao Yuan also joined Star Technology, the company’s materials science team will also make great strides towards the next field of graphene.
Anran has an upright personality, and she will praise when she should, and she will not hesitate. At the same time, if any laboratory in the hardware department is not doing well enough, Anran will also scold others.
To be honest, An Ran’s speech was a bit too professional. Most of the people who eat melons listened to the clouds and mountains and fog, and the carbon core and SEI film. What the **** is this?
However, scientific and technological workers who understand battery technology feel excited as if they have found a treasure and suddenly realized it.
They finally remembered that Xingchen Technology is a master at playing with carbon materials. They integrated their own super carbon materials into silicon anodes, and solved the problems that have plagued the scientific community for many years in one fell swoop!
Is silicon anode material good?
It’s more than good, it’s so good!
Because anyone who has studied the field of batteries knows that the most powerful negative electrode materials are lithium and silicon, but at the same time, the problems of these two materials are very serious.
The problem with lithium lies in the lithium crystal dendrites, which are terrifying. They will produce countless sharp thorns during use. Once the lithium crystal dendrites pierce the diaphragm, the result will be a catastrophic disaster.
The problem with silicon is that it shrinks and shrinks, causing the stress inside the battery to change constantly. If it cannot be controlled, the result will be catastrophic.
The reason why lithium batteries use graphite as the negative electrode is not because graphite has excellent performance, but because graphite is easier to control. In terms of energy density, even the top graphite material is far worse than silicon and lithium. Woolen cloth.
“Let’s go back to the design of the carbon core.” An Ran said quickly, “Due to commercial confidentiality, you don’t have to think about the details. I can only tell you that this technology is made of a layer of silicon material. The outer layer is then wrapped with a layer of carbon material, so that layer upon layer can utilize the high capacity of silicon while absorbing the volume change of silicon with carbon.”
“In the end, what did we get?”
“First of all, our silicon-lithium battery has a very low discharge platform, so that it can be matched with a variety of positive electrode materials to form a high discharge voltage.”
“Secondly, the lithium-silicon battery material has a strong honeycomb structure, which can accommodate lithium ions. At the same time, the molecular weight of the material itself is extremely small, and it can manipulate the structure at the atomic level.”
“Thirdly, silicon-lithium batteries have dual stability in terms of structure and chemistry.”
“Finally, materials are easy to obtain. After all, silicon is essentially purified sand, so our silicon-lithium batteries are relatively cheap.”
First, second, third, last…
It is undeniable that An Ran is a real super genius, with clear speech and rigorous logic.
However, countless people who eat melons opened their mouths wide in surprise, because they found that they could not understand what An Ran said…
“Isn’t this too difficult?”
“Shouldn’t you say something like a new product launch that everyone can understand? Why does it sound like a technical report?”
“As a scumbag, I feel that my IQ has been insulted today. From the beginning to the end, I figured out that the battery of Xingchen Technology is different from other companies, and I don’t understand the rest.”
“Hey, I’m so angry, I have studied chemistry, why can’t I understand?”
The barrage was refreshed crazily, and many people showed dislike towards An Ran, because listening to his speech would make people feel inferior, as if they were not from the same world.
However, An Ran didn’t pay attention to this at all, he came here to show off his muscles today!
Luo Jia is An Ran’s boss, and she is also An Ran’s best friend in this life. Now her best friend is regarded by Fortune Magazine as a rich and unkind local rich man, and put on fire. An Ran is very angry, and the consequences are very serious.
A simple understanding of An Ran’s words probably means something like this.
I play well with carbon materials, this is called a trick, eat it all over the world!
Why did your imitated Karman vortex street power generation array collapse?
Because there is no carbon material of Lao Tzu!
Why can’t you make a super capacitor?
Because there is no carbon material of Lao Tzu!
Why can’t you solve the silicon shrinkage problem?
It’s still because I don’t have Lao Tzu’s carbon material!
Lao Tzu’s carbon materials are so awesome, what works well for them, and which field they put in will turn the world upside down!
Too bullying, An Ran is really bullying today, grasping the key point of carbon materials and bragging repeatedly, so that Ji Ming and Chao Anbang, who were watching the live broadcast, blushed.
The carbon materials they make are very powerful, but they are not that powerful. The most critical technology of Karman vortex street power generation is actually the fully automatic wind power evaluation and management system, which is thousands of fixed wind power on the array. wing.
If there is no high-strength carbon fiber, at most, the life of the power generation array will be shortened by a large amount, and it will not collapse so severely.
Anron is obviously playing tricks. Starting tomorrow, how many laboratories in the world ~Soverse.com~ will put super carbon materials as the top priority. Countless scientists have racked their brains on a pile of carbon foam, countless Qing’s scientific research funds will be poured into the bottomless pit of carbon materials.
You know, in order to study the Karman vortex street power generation array, the western scientific community has invested countless manpower and material resources, which is also a bottomless pit.
Therefore, it is better not to offend people with high IQ, because once they start cheating people, they will really cheat people to death.
An Ran finally finished his lengthy technical speech, and the melon eaters were generally very irritable, because they didn’t understand after listening for a long time.
Scientists are waking up like a dream, and they secretly make up their minds to devote all their energy in their lives to carbon materials, a great research field.
An Ran cleared her throat and said: “I think everyone is very interested. We have adopted a new structure. How much energy density can the silicon-lithium battery achieve?”
“I am ashamed to say that because we have to use carbon materials to solve the shrinkage problem of silicon anodes, the final product cannot reach the energy density of pure silicon anodes, only 2000H level!”