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289 Graphene Solar

Cai Feifei clicked on the screen and refreshed the page. Now the number of people who made reservations to buy has exceeded 8 million!

I will start buying at 10 o'clock later. I wonder how popular it will be?

"How about making a bet?" Cai Feifei said with a smile.

"Betting? How to fight?"

Cai Feifei thought for a while and said, "Guess how many seconds you will be snatched away? Guess right, your breakfast this month."

She patted her chest: "I've got it."

Sun Zhennan touched his chin: "It's 15 seconds."

"9 seconds." Chen Yao said casually.

Cai Feifei laughed and said, "You are so optimistic. Look, it's great to be robbed in 30 seconds."

Although there are many people making appointments to buy, at 10 a.m., many people are studying at work. How many people are actually buying?

What's more, the current Mengzhen system ecology is not perfect, and the people who really want it are likely not as many as expected.

Half an hour before the rush to buy, Chen Yao got up and walked towards the laboratory.

The new mobile phone has just been released, and the next generation of mobile phones has been under development.

Zhou Weiming is leading the team to focus on breaking through a key component.

Battery!

After so many years of development of mobile phones, many parts have made great breakthroughs, including screens, chips, memory, etc., and have made great leaps, but battery technology has not improved.

It cannot be said that there is no progress, but it is slow.

The battery capacity of the mobile phone has increased, but the battery life of the mobile phone has not increased significantly. Many people still charge it every two days, or even every day.

Legend makes mobile phones, and many key components are being made, but the battery is always dragging it down.

Battery lab.

Chen Yao put on a mask and walked in with anti-static experimental suits.

At this time, Zhou Weiming, who was also wearing a mask, was standing in front of a cutting machine, controlling the cutting machine to separate the "graphene" material.

Graphene is known as a magical material and was discovered by scientists in 2004. The scientists who discovered this material won the 2010 Nobel Prize in Physics.

Compared with materials like silicon, if graphene is used as chips, its frequency can be 10 times faster or even hundreds of times faster, and it is not easy to heat up.

If graphene is used in a battery, its power storage can be more than three times that of an ordinary battery. A 3500 mAh battery will immediately become tens of thousands of mAh.

Moreover, you can fully charge your phone's battery in 1 minute!

However, this magical material has been discovered for so many years, but it is still difficult to mass produce and commercialize.

The main reason is that the cost is too high. Graphene is separated from graphite, and the process is extremely difficult, and 1 gram costs thousands of yuan.

Yes, 1 gram costs thousands of yuan. If it is used as a battery or chip, the price of a mobile phone will be as expensive as heaven.

Scientists and materials companies around the world are studying how to reduce the cost of mass production of graphene extraction?

Chen Yao had already arranged a team to make key breakthroughs.

Zhou Weiming's eyes were focused, and he controlled the machine while looking at the microscope.

There are two main ways to separate graphene materials, one is machinery and the other is chemistry.

Chen Yao stood beside him and asked, "How is it, is there any progress?"

Zhou Weiming took a deep breath: "Yes, but the progress is a bit slow."

It is not difficult to extract this material, but it is very difficult to produce it on a large scale. I haven’t yet developed the lowest cost peeling method?

Only when the cost is reduced can it have commercial value and be used as the production of batteries, screens and chips.

The performance of mobile phones will have a big leap, and the success of domestic systems is not far from the time they are successful.

In addition to studying graphene batteries, solar cells are also being carried out simultaneously.

Graphene solves the battery capacity and charging speed, while solar energy solves the problem of electricity source.

Compared with coal, nuclear power generation, solar energy is one of the cleanest energy sources and is an inexhaustible renewable energy source.

However, like graphene materials, solar energy technology has also encountered a big bottleneck.

Low photoelectric conversion rate.

That is, the proportion of light that can be converted into electrical energy when it shines into the battery panel is very low.

Most solar panels have a photoelectric conversion rate of only 17%. In other words, when light shines in, only 17% can become electricity, and most of them are wasted.

Better solar panels can achieve a photoelectric conversion rate of 21%, which is almost the limit, and there has not been a significant increase over the years.

In Chen Yao's community, solar power panels are installed on the roof. Why should they be installed on the roof instead of the exterior wall?

The reason is that the photoelectric conversion rate is too low.

When installed on the roof, the sun can be sunny during the day, but if installed on the exterior wall and on the west, the sun cannot shine on the sunrise and the sun is in the east, and the sun cannot shine on the afternoon.

If the photoelectric conversion rate is increased, a large amount of electricity can be produced even if it is installed on the exterior wall, and the solar energy industry will be popularized quickly.

Not only the roofs, walls, and roads, solar panels are installed. By then, solar energy alone will be enough to meet the global human electricity needs!

Do the car need to refuel? Do it need to be recharged?

No need, you can fill it by basking in the sun on the road.

What’s even more exciting is that sunlight is free, allowing solar panels to use graphene material, and their service life can last up to more than 100 years.

It will take a set of solar energy to install the exterior wall of your home for a 00-year period. Using electricity can do whatever you want.

Today's solar energy is made of "silicon" materials, with a lifespan of about 25 to 30 years.

If you use magical material such as graphene, it will not only have better conductivity, but also not easily heat up. It is not a problem to use it for 100 years.

The heating effect is the life of solar panels, because it is exposed to sunlight for a long time. In summer, the internal temperature is as high as 100 degrees.

The hotter the weather, the lower the power generation performance, which will be reduced by about 10% to 20%.

The heat dissipation performance of graphene is much stronger than that of silicon, which can greatly improve the service life of solar panels.

During the day, Chen Yaodu and his team's brothers do research.

In the laboratory, the battery performance of graphene has completely met expectations, and the solar performance produced has also achieved the expected effect.

But the problem is that success in the laboratory does not mean that production can be launched online.

The laboratory spends money on research at all costs, but when production goes online, it has to consider cost issues.

No matter how awesome the technology is, it is a hooligan regardless of cost.

In the evening, Chen Yao walked out of the laboratory, changed his clothes, and took back his cell phone.

At this moment, the phone ringtone rang.

It was Sun Zhennan’s call.

When he put his phone in anti-theft, Chen Yao asked with a smile: "Is there good news?"

"Hahaha, Brother Yao, you guessed it right." Sun Zhennan laughed and said, "The legendary phone will be on sale at 10 o'clock this morning and was sold out in 9 seconds."
Chapter completed!
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