Chapter 96 Graphene Protective Armor(1/2)
In fact, the engineers and experts who came to 202 Institute have all heard of Li Future’s name.
After all, the Science and Technology Alliance has been established for several months. On the day of its establishment, the superiors even specifically mentioned "Li Future Studio", and the studio representative Li Future met all the big guys present at the time.
After all, he is so special. Everyone in the audience is over 40 years old, and he is just a pink college student in his 20s.
And being able to have a meeting with them, it is obviously not an ordinary pink and tender one.
It's just that some time ago, the technology alliance has been coordinating resources, and various technology projects have not grown much during this period, so not many people contacted Lifuture Studio through Practical Technology Group.
Of course, this is what coordination of resources is for.
After the coordination and overall planning of resources was completed, with some technical foundation provided by Rifuture Studio, various technology projects developed rapidly.
This time, 202 is here because of the original video. It is responsible for providing advanced individual powered exoskeleton systems for the military, and is very concerned about this information.
When the video came over, the top leader discovered that there was someone in it who happened to be Li Weiwei, whom he had met at the founding meeting of the Technology Alliance. After thinking about his relationship with Li Future Studio, especially the studio's technological strength, he
Contacted him.
As soon as I made contact, I knew I had found the right person.
After obtaining the technology, Li Weilai participated in several confidential video conferences, so more people in the exoskeleton technology team knew about Li Weilai.
Originally, Li Weilai was criticized by some experts and engineers because of his age, but after several meetings, they also agreed with Li Weilai.
Without him, he is a great technical expert!
Not only is Li Future Studio’s technical skills impressive, Li Future himself also has an extremely solid grasp of technology.
It's just that they couldn't have imagined that the technology of Lifuture Studio would be so awesome!
"Graphene batteries are really powerful. We have even made a very small graphene battery before. Its energy density is amazing, and it is very safe. There is no danger of fire or explosion. It is light in weight. It is good everywhere, but it is too
It’s expensive!”
Hearing someone say this, Li Weilai was stunned: "You have really made a graphene battery, can you let me see it?"
"certainly."
The two sides exchanged "hostages". Li Future showed them the general data about graphene batteries and mass-produced graphene he mentioned, while they showed Li Future the actual graphene batteries and test data they had made before.
After Li Future got the battery, he found that it looked like a No. 7 battery. He weighed it with his hands and found that the weight was about the same, about 10 grams.
He also looked at the actual data and found that this battery used a total of 9 grams of graphene.
The price of real graphene is more than a thousand yuan per gram, so the cost of these 9 grams of graphene is tens of thousands. Adding their technology, their labor, etc., this battery will cost at least tens of thousands.
However, its performance is indeed good. Judging from their actual measurement data, its performance is 2.5 times that of the main lithium batteries currently on the market.
This may not be clear, so let’s take electric cars as an example.
Currently, most electric cars on the market can run 300 to 500 kilometers on a single charge. Some claim to be able to run further, but those are very few, and it is not certain whether they can run further.
Take the middle value of 400 kilometers as an example. Its 2.5 times means it can run 1,000 kilometers on a single charge!
If you can travel this kind of mileage on a single charge, then the market share of pure electric vehicles will not be only 10%.
But there is nothing we can do. Current lithium batteries are not very powerful and are in an awkward energy range.
But graphene is also “not good”, or the price is too good!
A small AA-sized graphene battery costs tens of thousands of pieces, while a AA-sized ring dry battery only costs a few pieces, and an AA-sized lithium battery only costs dozens of pieces.
If graphene is used to make car batteries, hundreds of kilograms would be needed.
Then the cost of light graphene has to be...forget it, if you have this money, you might as well buy a J-20 fighter jet.
Of course, this was in the past. When the big guys in the conference room read the information provided by Li Future, they will say: "Wait a minute, we can't just forget about it, we will fix it all!"
Without him, the technology mentioned by Li Future is so awesome!
"This mass production technology is too powerful!"
"Incredible! Incredible!"
"So you don't have to worry about graphene in the future, you can use it casually?"
"Well, it's not for casual use. It's still more expensive than lithium batteries, but the effect is damn good!"
"The technology of Lifuture Studio's graphene batteries is also very high. Our energy density is only 2.5 times that of lithium batteries, but theirs can already reach 5 times that of lithium batteries!"
"Yes, it doesn't matter if it's a little more expensive to reach this level. It can already be commercialized on a large scale."
"Actually, it's not expensive when converted in proportion. Fortunately, all major domestic battery manufacturers have joined the technology alliance. After resource coordination, other companies can also use the technology. Otherwise, if this technology is released... it will definitely be a big earthquake in the energy storage field."
"Anyway, foreign battery technology companies are about to finish. If this technology is put into operation by the higher authorities, it can basically be used as a strategic weapon."
"International strategic issues have little to do with us, but if graphene can really be mass-produced and the price is not too outrageous, then our power exoskeleton design will need to be changed."
"How to change it? Can't we just replace the battery?"
"It's protective. The protective performance of graphene armor is so good, and it's also very light! What do you think would happen if it was made into armor and mounted on an exoskeleton?"
"Hey, how could I forget this..."
A few years ago, the Southern Supreme University of the Free Federation conducted a microscopic ballistics test, shooting a tiny silicon particle at a speed of 2000mph at a single layer of graphene, and then found that this honeycomb-shaped structure of the material can effectively disperse kinetic energy.
10 times stronger than steel!
In this experiment, the muzzle velocity of the silicon particles reached the level of a rifle. The test proved that if graphene is applied at the macro level, it has very powerful bulletproof capabilities.
Electron microscopy shows that graphene absorbs the energy of the impact, deforms itself into a cone shape, spreads outward in multiple directions, and fragments within a certain radius.
Researchers say that this fragmentation process is the weakness of single-layer graphene, but even so it is 2 times stronger than Kevlar and 10 times stronger than steel!
Of course, this experiment did not obtain the theoretical value of "graphene is 200 times stronger than steel".
There's a reason for this, though, because they couldn't use conventional methods like gun barrels or gunpowder in tests of this scale.
After all, their "target" is a single layer of graphene, only a little bit. If they really want to make a conventional rifle target, they don't have enough funds.
Although the entire process of this experiment requires observation with an electron microscope, the electron microscope laboratory already has it, so they do not need to spend money to buy a new one.
So they used a laser to accelerate micron-sized silica spheres on a graphene target, and then the bullet was propelled into the graphene sheet at speeds of up to 2,000mph by using gases generated by laser pulses that rapidly evaporated the gold film.
The researchers then calculated the difference in energy of the bullet before and after impact to determine how much energy was absorbed.
Later, researchers at the Free Federation Gotham City University created a new material, which is composed of two graphene sheets on a silicon carbide substrate.
Why use two pieces?
This thing is also very magical. The research team said that when two sheets of graphene are aligned and stacked together, this material has a wonderful characteristic - a hardening effect!
In its normal state, the material is as light and flexible as aluminum foil, but once it is subjected to sudden mechanical pressure, it will suddenly "harden" and become harder than diamond!
Everyone knows that the Mohs hardness of diamond is 10, which is basically the hardest thing in the world, and this new material is harder than diamond when it is subjected to mechanical pressure.
Similar experiments have actually been conducted in some laboratories in Fanxing, but due to insufficient funds, all experiments were conducted at the "microscopic level" and no larger-scale experiments were conducted.
The graphene battery experiment of their individual powered exoskeleton team is more or less "macroscopic". At least 9 grams of graphene can be used to create an AA battery.
Of course, since their experiment was not complicated, the money spent was not much, only tens of thousands of yuan.
According to their understanding, another group that also has a military background and needs to study the application of graphene spends more money.
It sounds like the graphene armor they were thinking of. The project team was also studying graphene armor, but the module was larger and used in more places. It was used on helicopters.
Research on that project has been ongoing for more than a decade, and the main issue is to develop a cheap and reliable manufacturing process for ultra-thin graphene sheets.
According to product disclosure information released by relevant institutes, the density of the bulletproof armor plate prepared by it is less than 2.8 grams per cubic centimeter, which is only 30% of the density of bulletproof steel plates and 56% of the density of bulletproof titanium alloy plates.
Compared with aviation aluminum alloy, the weight is only increased by 3%.
After many actual target shooting tests, its bulletproof effect and resistance to multiple strikes are significantly better than bulletproof titanium alloy plates of the same thickness.
It can effectively resist 12mm tungsten alloy armor-piercing projectiles with a muzzle velocity of 900m/s at a distance of 100m!
Tungsten alloy armor-piercing bullets are the way Fanxing handles tungsten.
Well, one of them.
Very powerful.
Of course, this material can block 12mm tungsten alloy armor-piercing bullets because the graphene content of this material is...about 1%, and the rest are cheap aluminum alloy and silicon carbide materials.
Ahem, there is no way, graphene is too expensive.
To develop a cheap and reliable graphene application technology requires the investment of a lot of upstream and downstream resources. Currently, only military research institutions are doing it. After all, many technologies originally served military purposes.
But now, there is no need to integrate upstream and downstream technologies across the country. Li Future directly brings cheap and reliable graphene technology.
Although this is not a cheap and reliable graphene application technology, graphene can be "used casually". Doesn't this mean that there are no restrictions on future experiments?
You can do experiments casually, and if you have enough graphene tubes, application technologies will definitely spring up like mushrooms after a rain!
Just like the graphene content studied by another group is only 1%, and the rest of the armor is made of aluminum alloy and silicon carbide materials, which can block 12mm tungsten alloy armor-piercing bullets, then what if the graphene content is increased to... 2%?
Or even 5%, 10%?
Ahem, 100% graphene is still too expensive. It’s okay to make small batteries, but it’s still hard to part with when it comes to making large pieces of armor.
Moreover, the protective effect of 100% graphene may not be the best. Once the mass-produced graphene is released, we will slowly conduct experiments, and we will definitely be able to find a ratio that is reasonably priced and easy to use.
On the powered exoskeleton team's side, with the armor department taking the lead, other departments are also starting to figure it out.
To be continued...