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#239 - Three-dimensional graphene supercapacitor!

After Gao Nian finished his explanation, a reporter from South Korea immediately raised his hand and asked:

"Mr. Gao Nian, what about the performance parameters of the graphene film and three-dimensional graphene that you developed in three months? Is the purity high?

If the purity is too low, what's the point of mass production? I'm afraid the overall performance won't even be as good as traditional materials."

Faced with the South Korean reporter's question, Gao Nian sneered inwardly, thinking, 'As expected.' Then, he smiled and said, "Just as I said before, if the purity of the graphene film and three-dimensional graphene is too low, it naturally won't be able to change the trajectory of human development.

Therefore, our graphene film and three-dimensional graphene are both high-quality, high-purity graphene. The specific purity is as follows."

After Gao Nian finished speaking, the relevant parameters of high-purity graphene appeared on the projection screen behind him.

Graphene Film.

Technical Research and Development Route: Chemical Vapor Deposition.

Density: 2.12 ~ 2.33 g / cm3

Tensile Strength: 135MPa

Elongation at Break: 11 ~ 15.4%

Electrical Conductivity: 13578S / cm

Thermal Conductivity: 2160W / mk

Three-Dimensional Graphene.

Technical Research and Development Route: Chemical Vapor Deposition.

Electrical Conductivity: 1.

Thermal Conductivity: 1120W / mk

Mechanical Strength: 49.7 MPa

Remark: The supercapacitor manufactured using it can achieve a mass ratio of up to 284.2 F / g, and the area specific capacitance is 242.

Looking at the parameters and special remarks above, the vast majority of consumers present were dumbfounded.

Because they couldn't understand these professional parameters at all, and didn't know what this pile of parameters represented.

After all, they didn't study materials science, so naturally they couldn't understand what those material parameters represented.

"Presumably everyone has noticed the special remarks below our three-dimensional graphene, right?

That's right, we have actually developed a usable three-dimensional graphene supercapacitor in an experimental state. Although this three-dimensional graphene supercapacitor cannot be mass-produced on a large scale due to equipment and manufacturing process issues,

it has already demonstrated a bright future. We are currently rapidly tackling the problem of dedicated production equipment and mass production.

Once our three-dimensional graphene supercapacitor is released, it will trigger a round of industrial revolution in the fields of civilian mobile devices, electric vehicles, high-power appliances, industrial equipment, and power grids!

And in the military field, such as electromagnetic guns, warships, tanks, and so on!"

"I see!"

Although they still didn't understand the relevant parameters.

But after hearing that Geek Technology Company had developed a usable three-dimensional graphene supercapacitor in an experimental state, they were quite expectant.

Since this three-dimensional graphene supercapacitor is called a supercapacitor, its performance must be far superior to ordinary capacitors.

So, after this supercapacitor is born, it will definitely have a beneficial impact on everyone's work and life, right?

Under such circumstances, how could they not feel excited and expectant?

"Next, let us show you the performance of our three-dimensional graphene supercapacitor."

After speaking, a test video of the three-dimensional graphene supercapacitor appeared behind Gao Nian.

In a clean laboratory, two experimenters were seen using the three-dimensional graphene supercapacitor to test relevant parameters on various instruments.

In this accelerated few-minute test video, when the parameter results were obtained, the parameters of other models of capacitors were also taken out for comparison.

This allows the audience and netizens to know how powerful and terrifying the three-dimensional graphene supercapacitor is from the parameter data of multiple capacitors.

As for what the parameters of the three-dimensional graphene supercapacitor are?

Two important parameters are energy density and power density. Through them, you can know the power of the three-dimensional graphene supercapacitor.

Among them, the energy density of this three-dimensional graphene supercapacitor is 56Wh / kg, which far surpasses other supercapacitors, but is not as good as lithium batteries.

As for the energy power, it is quite amazing, reaching an astonishing 1520kW / kg!

In addition, the service life parameter is also quite amazing, because it says 'Number of uses exceeds 1 million times'.

In general, this three-dimensional graphene supercapacitor completely crushes the world's strongest ternary lithium battery in all aspects except for the pain point of low energy density.

As for why low energy density is a pain point.

This is because its energy density is only slightly stronger than the strongest lead-acid battery currently on the market by a few Wh / kg.

After all, the energy density of lead-acid batteries is usually 30 ~ 50Wh / kg.

At this time, the three-dimensional graphene supercapacitor developed by Geek Technology Company has an energy density of only 56Wh / kg, which is not much of a lead and is unremarkable.

As for how much is the energy density gap between this three-dimensional graphene supercapacitor and the ternary lithium battery?

The difference between the two is quite obvious, reaching a level of heaven and earth, because the energy density of ternary lithium batteries is an astonishing 200-300 Wh / kg.

Therefore, in terms of energy density, ternary lithium batteries completely beat three-dimensional graphene supercapacitors, leading by a full 3.57 times to 5.36 times.

This means that three-dimensional graphene supercapacitors need 3.56 times or 5.36 times the volume and weight to achieve the energy density of ternary lithium batteries.

Of course, many things cannot be simply compared to energy density.

In many special occasions, three-dimensional graphene supercapacitors have their own unique and irreplaceable leading advantages.

The ultra-high power density of 1520kW / kg of this three-dimensional graphene supercapacitor is its greatest advantage.

This ultra-high power density of 1520kW / kg means that one kilogram of three-dimensional graphene supercapacitor can release 1520kW / kg of energy per hour!

Just looking at the paper parameters may not be able to understand how powerful it is, but comparing it with the ternary lithium batteries that people see every day can show how powerful it is.

First of all, although the energy density of ternary lithium batteries reaches an astonishing 200-300 Wh / kg, its power density is only 1-3 kW / kg.

The power density between the two is 1520 times to 506 times!

Therefore, the charging speed and discharge speed of three-dimensional graphene supercapacitors are 1520 times and 506 times that of ternary lithium batteries!

Therefore, with this amazing charging speed and discharging speed, this three-dimensional graphene supercapacitor is simply godlike when used in special occasions.

It can be said that if its price drops, even if it is slightly more expensive than lead-acid batteries, it can completely eliminate lead-acid electric vehicles.

Even electric vehicles and many trucks and construction machinery may not be able to tear off a large market share and occupy a place.

After all, its energy density is indeed very low, simply terrible, only slightly more than the strongest lead-acid battery by a few Wh / kg.

But its charging speed and discharging speed are super fierce.

It can be quickly fully charged in a few seconds, at most no more than one minute, and the output of electric energy is also super fierce.

This is quite powerful for vehicles, after all, the higher the electric energy voltage you give to the motor, the more powerful it will be.

Therefore, three-dimensional graphene supercapacitors are simply super fierce when used in two-wheeled electric vehicles, electric vehicles, trucks, and construction machinery.

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