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Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .
Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales
Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.
release time:2024-03-19 Hits: Popular:AG11 battery
What exactly is li-ion 18650 battery fast charging technology?
At present, oil and other fuel resources are gradually depleting. In order to cope with the shortage of these fuel resources, all walks of life have begun to look for corresponding alternative energy sources. The automotive industry is naturally no exception. New energy electric vehicles have emerged under this situation. But in the face of new energy electric vehicles that have just emerged, everyone is most concerned about their li-ion 18650 battery problems, and they still don’t quite understand the emerging li-ion 18650 battery fast charging technology. What exactly is it? How to fully charge the li-ion 18650 battery in a short time?
Generally speaking, most electric vehicles use ordinary charging technology. This ordinary charging method takes 8 to 10 hours to charge an electric vehicle, while fast charging means fast charging. It only takes 1 hour to fully charge the li-ion 18650 battery. . To simplify the concept, it actually uses high-current and high-power DC to charge the li-ion 18650 battery. The real principle is that in the fast charging state, the lithium ions in the lithium li-ion 18650 battery move at high speed and are instantly embedded into the two poles of the li-ion 18650 battery. The implementation method is to first use a wider charging pulse to charge the li-ion 18650 battery to increase the terminal voltage of the lithium li-ion 18650 battery. When the charging time limit set by the charging system is reached, the charging system cuts off the power supply current to suspend charging of the li-ion 18650 battery. Then when the interval reaches When another charging point is reached, the charging is restarted and the process is repeated. When all the lithium ions inside the li-ion 18650 battery are gathered on the positive and negative electrodes of the li-ion 18650 battery, the car li-ion 18650 battery is quickly fully charged. Therefore, this fast charging technology has high requirements on the li-ion 18650 battery itself. The li-ion 18650 battery itself must have an automatic management system, and at the same time, it must have very reliable thermal stability and withstand high voltage and large current.
But the above are only the li-ion 18650 battery requirements for fast charging. To achieve this kind of fast charging, you must also have a matching charging system. Many cities now provide fast charging charging piles with powers as high as 20KW and above, which can convert 10KV high-voltage AC power. It is converted into hundreds of amps of direct current and continuously delivered to the car li-ion 18650 battery system through special cables. However, given that the current li-ion 18650 battery pack balancing technology, power transmission and distribution technology, and especially heat dissipation technology do not meet the requirements, true fast charging cannot be fully realized, but compared with ordinary charging technology, the charging time has been greatly shortened. The most important thing is this fast charging technology. From the principle, it can be seen that fast charging will not seriously consume the li-ion 18650 battery and sacrifice the service life of the li-ion 18650 battery as rumored.
In general, in order to achieve fast charging, in addition to a dedicated li-ion 18650 battery system to ensure the conditions for rapid movement of internal electronics and automatic charging management, a special external charging system is also required to provide the li-ion 18650 battery system with Providing the required large current, it can be seen that the principle of li-ion 18650 battery fast charging is not that complicated.
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