How to charge the rechargeable battery 18650 3.7v quickly?

Batteries are everywhere in our lives: mobile phones, tablets, e-books, remote controls, smart watches, electric cars... As a supporting technology for the new industrial revolution, technological progress in small batteries will also It is changing the global energy landscape and has an impact on all aspects of social life.

How to charge the rechargeable battery 18650 3.7v quickly? How to make mobile phone standby time longer? How far is the ultimate rechargeable battery 18650 3.7v from us...rechargeable battery 18650 3.7v issues have made people more and more concerned. Recently, the reporter interviewed Lu Jun, a researcher at the Argonne National Laboratory in the United States, who is famous for his energy research, and he answered this question.

Q: Are mobile phone batteries and electric vehicle batteries the same thing?

Answer: The application of the rechargeable battery 18650 3.7v is determined by the nature of the rechargeable battery 18650 3.7v itself. It does not mean that you can use it wherever you want. It is actually divided into several categories: automotive, consumer electronics, and energy storage, each with different performance and cost requirements. For example, the positive electrode material of lithium-ion batteries currently used in mobile phones is generally lithium cobalt oxide, also known as lithium cobalt oxide. This material is very expensive and not suitable for use in electric vehicles. Therefore, most of the rechargeable battery 18650 3.7v materials used in electric vehicles are transition metal oxides based on nickel, iron or manganese, such as lithium manganate.

Q: How to charge electric vehicle rechargeable battery 18650 3.7v quickly?

Answer: Charging speed has always been one of the bottlenecks in the development of electric vehicles. Charging is divided into fast charging and slow charging. A quick charge at a charging station generally takes an hour, but can only charge less than 80% of the power. If you want the rechargeable battery 18650 3.7v to be "full", you need to charge it slowly, which usually takes 6 to 7 hours.

People have the greatest demand for fast charging. But fast charging first depends on the rechargeable battery 18650 3.7v material, because fast charging requires a relatively large current and has high requirements on rechargeable battery 18650 3.7v materials. Not all materials are suitable for fast charging. The rechargeable battery 18650 3.7v materials suitable for fast charging are mainly lithium manganate and lithium titanate. Lithium titanate batteries generally charge faster.

Future technology can further shorten the fast charging time and increase the cruising range of electric vehicles. Lithium-air rechargeable battery 18650 3.7v technology is currently generally optimistic. Once the relevant technology matures in the next few years, it may change the concept of charging. When the rechargeable battery 18650 3.7v power is low, people only need to replace the electrode material. There is no need to charge or wait for a long time.

Question: How to solve the problem of short mobile phone standby time?

Answer: Currently, mobile phones mainly use lithium-ion batteries. There is still room for improving the performance of lithium-ion batteries, and the energy density is estimated to be doubled at most, but it will certainly not be as large as the next generation of lithium batteries. In the next 5 to 10 years, lithium-ion batteries will still dominate the mobile phone rechargeable battery 18650 3.7v market, but there is still a long way to go before the next generation of lithium batteries can be commercialized.

Q: How far is the ultimate rechargeable battery 18650 3.7v from us?

Answer: The power storage capacity of lithium-air batteries is theoretically 10 times that of lithium batteries currently on the market. It is a very popular next-generation rechargeable battery 18650 3.7v and is also known as the ultimate rechargeable battery 18650 3.7v. Basic research on such batteries is progressing rapidly, but it is not yet ready for commercialization. I personally think that its commercialization will take another 5 to 10 years, and there are many problems that need to be solved in the meantime. Both the United States and other countries have invested heavily in lithium-air rechargeable battery 18650 3.7v research with the goal of commercializing it. This is an important direction for the next generation of lithium batteries, but it will not be the only direction.

Another direction for next-generation batteries is lithium-sulfur batteries, which are closer to commercialization. The negative electrode of this kind of rechargeable battery 18650 3.7v is currently dominated by metallic lithium sheets, and the positive active material is elemental sulfur. Although lithium-sulfur batteries are close to commercialization, there are also many problems that need to be solved, such as stability, recyclability and safety that need to be further improved.

Lu Jun finally said that if one day, the next generation of rechargeable battery 18650 3.7v technology matures, he hopes that electric vehicles can dominate the automobile market and even replace fuel vehicles. This would be good for the environment, and, after all, oil resources are limited. Lu Jun also said that people cannot live without batteries. The better the rechargeable battery 18650 3.7v, the more convenient people's lives will be.

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