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Chapter 290 Graphene Solar Energy

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    You can search "I'm really not a technology superstar" on Baidu to find the latest chapter!

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

    The rush sale will start at 10 o¡¯clock. I wonder how popular it will be?

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

    "A bet? How to make a bet?"

    Cai Feifei thought for a moment and said, "Guess how many seconds it will take before everything is sold out? You guessed it, your breakfast this month."

    She patted her chest: "I'll cover it."

    Sun Zhennan touched his chin: "Fifteen seconds."

    "Nine seconds." Chen Yao said casually.

    Cai Feifei laughed and said: "You are too optimistic. I think it's good to be robbed in 30 seconds."

    Although there are many people who have made appointments to rush to buy, at 10 o'clock in the morning, many people are working and studying. How many people are actually rushing to buy?

    What¡¯s more, the current Mengzhen system ecology is not perfect, and the people who really want it may not be as many as expected.

    With half an hour left before the rush, Chen Yao got up and walked towards the laboratory.

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

    Zhou Weiming is leading the team to break through a key component.

    Battery!

    With the development of mobile phones for so many years, many components have made great breakthroughs. Screens, chips, memory, etc. have all made great leaps. However, battery technology has not improved.

    It can¡¯t be said that there is no progress, but it is slow.

    The battery capacity of mobile phones has become larger, but the battery life of mobile phones has not been significantly improved. Many people still charge it every two days, or even once a day.

    Legend has been making many key components when making mobile phones, but batteries have been lagging behind.

    Battery laboratory.

    Chen Yao put on a mask and walked in wearing an anti-static lab coat.

    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 miracle material and was discovered by scientists in 2004. The scientist who discovered this material won the 2010 Nobel Prize in Physics.

    "Compared to materials like silicon, if graphene is used as a chip, its frequency can be 10 times or even hundreds of times faster, and it is not prone to heat.

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

    ???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????</ niche box were?a box and saturation ? ? ? ? ? ? and the phone's battery can fully made? ? ? ? ? ? 1 minute?!

    However, after so many years of discovery, this magical material is still difficult to mass-produce and commercialize.

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

    Yes, 1 gram costs thousands of dollars. If it is used as a battery or chip, the price of a mobile phone will be sky-high.

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

    Chen Yao has already arranged for the team to make key breakthroughs.

    Zhou Weiming¡¯s eyes were focused. He was looking at the microscope and controlling the machine.

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

    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 mass-produce it on a large scale. The lowest-cost stripping method has not yet been developed?

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

    The performance of mobile phones will make a big leap, and the success of domestic systems is not far away.

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

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

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

    However, like graphene materials, solar technology also encounters big bottlenecks.

    The photoelectric conversion rate is low.

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

    Most solar panels have a photoelectric conversion rate of only 17%. In other words, when light shines in, only 17% can be turned into electricity, and most of it is wasted.

    &nbsp; Better solar panels can achieve a photoelectric conversion rate of 21%, which is almost the limit, and there has been no significant improvement over the years.

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

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

    If installed on the roof, the sun can be exposed to it during the day. However, if it is installed on the exterior wall and installed on the west side, the sun will not reach it at sunrise. If it is installed on the east side, the sun will not reach it in the afternoon.

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

    Not only the roofs of buildings, but also the walls and roads will be equipped with solar panels. By then, solar energy alone will be enough to meet the global human power demand!

    Does the car need refueling?  Need to charge?

    No need to do it, just bask in the sun on the road and it will be full.

    What¡¯s even more exciting is that sunlight is free. Using graphene materials on solar panels can have a service life of more than 100 years.

    ??A set of solar energy installed on the exterior wall of your home will be enough for 100 years. You can do whatever you want with electricity.

    Current solar energy is made of silicon material and has a lifespan of about 25 to 30 years.

    If you use a magical material like graphene, it not only has better electrical conductivity, but also does not easily generate heat. It will not be a problem at all for 100 years.

    What affects the life of solar panels is heat generation, because they are exposed to sunlight for a long time. In summer, the internal temperature can reach as high as 100 degrees.

    The hotter the weather, the power generation performance will also decrease, probably by about 10% to 20%.

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

    During the day, Chen Yaodu did research with his brothers in the team.

    In the laboratory, the battery performance of graphene fully met expectations, and the solar performance also achieved the envisioned results.

    But the problem is that success in the laboratory does not mean that it can be put into production.

    The laboratory spends money on research at all costs, but when it comes to online production, cost issues must be considered.

    No matter how awesome the technology is, it is just a hooliganism without considering the cost.

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

    Just then, the cell phone rang.

    It was Sun Zhennan¡¯s call.

    Putting the mobile phone against theft to his ear, Chen Yao smiled and asked, "Is there any good news?"

    "Hahaha, Brother Yao, you really guessed it right." Sun Zhennan said with a smile: "The Legend mobile phone went on sale at 10 o'clock this morning, and it was sold out in 9 seconds." (Remember the website address: www.hlnovel.com
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