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Chapter 515 Battery

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    There are also electric cars that are already very popular.  This also requires a good battery that can provide sufficient power.

    Lithium batteries, or strictly speaking, lithium-ion batteries, can better solve this problem.  With the gradual research by scientists, its safety and power storage capacity have been greatly improved.

    Originally, Huang Shaowen, an ordinary citizen, didn¡¯t pay much attention to this matter.  However, when smartphones developed, Huang Shaowen did a little research on this aspect because of the comparison of battery life with that of Novo machines.

    Only then did I realize that the development of lithium batteries is really a long time coming.

    Because of the energy crisis in the 1970s, some people were already studying this lithium battery technology.  At the beginning, titanium sulfide was used as the positive electrode material and metallic lithium was used as the negative electrode material.  Later, the positive electrode was replaced with manganese dioxide or thionyl chloride. After the battery is assembled, the battery has voltage.

    People think this kind of disposable battery is not good, so based on this lithium battery, the positive electrode was replaced with lithium cobalt oxide, and a lithium-ion battery was developed.  Allows the battery to be recharged.

    It is the button battery used in cameras in the past.  However, although this kind of battery can be recharged, its cycle performance is not good. Lithium crystals are easily formed during the charge and discharge cycle, causing an internal short circuit in the battery. Therefore, charging of this kind of battery is generally prohibited.

    Since then, everyone has continued research and discovered the characteristics of lithium ions embedded in graphite, which is fast and reversible.  At the same time, the safety risks of lithium batteries made of metallic lithium have attracted much attention, so people have tried to use the characteristics of lithium ions embedded in graphite to make rechargeable batteries.

    The first usable lithium-ion graphite electrode was successfully trial-produced by the famous Bell Labs.

    Later, we mostly looked for materials in this kind of positive and negative electrode materials that can make the release of electrons from lithium ions more stable and efficient.

    Later, the positive electrode of polymeric anions was adopted, which made the battery voltage higher.  And Sony, which finally commercialized lithium-ion batteries on a large scale, invented a lithium battery that uses carbon materials as the negative electrode and lithium-containing compounds as the positive electrode. During the charge and discharge process, no metallic lithium exists, only lithium ions. This is  The ultimate lithium-ion battery.

    Later, the scientists who discovered lithium cobalt oxide as a cathode material once again discovered a phosphate with an olivine structure, such as lithium iron phosphate, which is safer than traditional cathode materials and is particularly resistant to high temperatures and overcharge.  Far more than traditional lithium-ion battery materials.

    This makes lithium-ion batteries further accepted by the market.  And compared with the previous nickel-cadmium batteries that were difficult to dispose of after use and were highly polluting, lithium-ion batteries are much less polluting.

    This is one of the reasons why in the 21st century, almost all we see are lithium-ion batteries, and other traditional batteries are almost gradually being phased out.

    Batteries have actually been on the stage of history since the era of fuel engines.  However, compared with the petroleum coal energy used by cheap oil-fired engines at that time, the use of electrical energy was too expensive.

    So in a relatively long period of time, the development of battery technology is still relatively slow.  But smart people all know that energy depletion is a problem. The oil crisis in the United States in the 1970s is a perfect confirmation of this view.

    Therefore, as long as a country is facing the future, it is impossible to ignore the development of battery technology.  In last year's 863 plan, the development of battery technology was also a key component.

    ¡°It¡¯s just that compared to foreign countries, flower planting still started a little later.  It was not until the late 1990s that the first commercial lithium-ion battery production plant was built in China.

    Huang Shaowen chose this direction to make a small contribution to the motherland.  Although it is not my own research, to be precise, it is plagiarized from others.  But as a reborn person, you still have to be selfish no matter what. It¡¯s not good to be too selfless.

    Huang Shaowen is not worried that after he develops this battery technology, he will not be taken seriously.  Mobile phones have emerged, and laptops are slowly becoming known to the public.  There are also other development directions of lightweight and miniaturization of smart products, which are gradually revealed.

    The research on battery equipment is at the right time. It¡¯s hard to say that it might even lead to Zhonghua being the first to build the first lithium-ion battery production line before Sony.

    In Huang Shaowen's research, as long as it can highlight green environmental protection, can be charged and discharged multiple times, and can be small, light, and thin, then I believe that no matter who you are, you can see this kind of lithium-ion battery once commercialized.  strong competitiveness.

    " Moreover, Huang Shaowen does not need to study other directions. He directly studies lithium iron phosphate and other phosphate substances that were only discovered in the 1990s, and then installs it on the positive electrode. This can mean that he has found a new material, and in lithiumThe electronic battery profession has made breakthrough progress, and then it can apply for a patent.

    ¡°I don¡¯t know why, but thinking about this, Huang Shaowen found it exciting and exciting.  It's just that Huang Shaowen was reborn too early, otherwise he would have known a year later that the researcher he plagiarized had become one of the three Nobel Prize winners.

    It is very likely that because of his plagiarism, his Nobel Prize may be lost, which severely hurts an octogenarian who has made significant contributions to mankind and is nearly a hundred years old.

    If Huang Shaowen knew about this, he might not choose this way.  After all, the development of national battery technology was actually pretty good, and there was no need for Huang Shaowen to be so anxious to contribute by harming the interests of others.

    The problem is that he doesn¡¯t know, and thinks that this is something that some scientific teams have studied together.  And it was an American team, so it didn¡¯t seem like a big problem to learn from it, so I just borrowed it openly.

    But after thinking about it, when he was about to start writing, Huang Shaowen found that there was still a problem.  At least you have to make a battery and let everyone see what it looks like.

    ????????????????????????????? Otherwise, it is true that you just use the pen, but people also wonder why you are so good, how can you know what the things you create are like just by using the pen?

    And, strictly speaking, Huang Shaowen studied electronic physics, but in fact this thing is more related to chemistry.

    I haven¡¯t been to the chemistry laboratory very often, but suddenly you said that you did an experiment and found a material that can greatly improve the safety of lithium-ion batteries, and is also resistant to high temperatures and overcharging.

    ¡°You dare to say it, do others dare to believe it?  If people believe it, they will have to wonder how you know this thing.  A blind cat meets a dead mouse?

    If this is really the case, it can be said that it is just painful and heart-wrenching to hear that others have spent so much effort studying it for many years.

    No, no, it seems that I should probably change my research project.

    It would hurt the hearts of others and become the target of public criticism. Based on the principle of keeping a low profile, Huang Shaowen felt that it was better to give up this project.  (Remember the website address: www.hlnovel.com
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