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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:2023-08-25 Hits: Popular:AG11 battery
When charging a lithium battery, the lithium atom in the positive electrode will lose electrons and oxidize into lithium ions. The lithium ions will swim to the negative electrode through the electrolyte, enter the storage cell of the negative electrode, and obtain an electron to reduce to a lithium atom; When discharging, the entire program is reversed. In order to prevent short circuits caused by direct contact between the positive and negative poles of the battery, a separator paper with numerous small holes is added to the battery to prevent short circuits. A good separator paper can also automatically close the small holes when the battery temperature is too high, preventing lithium ions from passing through and preventing danger.
The protection of lithium batteries should include: upper limit of charging voltage, lower limit of discharge voltage, and upper limit of current. Generally, in addition to the lithium battery cells, there is a protective plate inside the lithium battery pack, which mainly provides these three protections. However, these three protections of the protective board are obviously not enough. Global lithium battery explosions are still frequent, and to ensure the safety of the battery system, a more careful analysis of the causes of battery explosions is necessary.
1. Equipped with protective devices to prevent excessive battery temperature and damage;
2. When a single battery or battery pack is allowed to charge inside an explosion-proof enclosure, a protective circuit should be installed to prevent overcharging;
3. Faulty batteries and discarded batteries must be isolated and disposed of in specialized treatment cabinets, and the use of explosion-proof sand buckets is advocated for handling accident batteries;
4. When charging a lithium battery, it is necessary to set the upper voltage limit to simultaneously consider the battery's lifespan, capacity, and safety. The ideal upper limit of charging voltage is 4.2V;
5. When designing a lithium battery system, it is necessary to provide two separate electronic protections for overcharging, discharging, and overcurrent. The protective plate is the second protection, and after removing the protective plate, it can be charged. If the battery explodes, it indicates poor design.
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