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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:2023-09-08 Hits: Popular:AG11 battery
Firstly, the production and manufacturing process is not qualified. If the electric vehicle market is mixed, many companies are prone to bulging due to the limited manufacturing level of lithium-ion customized batteries, uneven electrode coating, and no air gap left for the batteries.
Lithium ion customization
2. The customized lithium-ion battery pack is overcharged. On the one hand, overcharging of the battery can easily cause ignition, and on the other hand, it can also cause battery bulging. Battery overcharging can cause a large amount of heat in the battery, leading to electrolyte decomposition and gasification, causing the battery to bulge.
3. The charging current is too high. Currently, many car owners privately modify batteries and electric vehicles. In addition, some car owners purchase cheap and mismatched chargers in order to obtain a lower price. Different sizes of batteries have specified voltage and current. If the charging current is too high, it can lead to rapid precipitation on the electrode plate, which in turn leads to insufficient chemical reactions, high temperatures, and untimely exhaust, resulting in the phenomenon of battery bulging.
4. The pressure of the safety valve is too high, and industry insiders are aware that electric vehicle batteries are equipped with a safety valve to ensure safety. When the pressure inside the electric vehicle battery rises, the safety valve will automatically open to release pressure, ensuring the balance of internal and external air pressure in the battery. If the safety valve cannot be opened normally when the pressure inside the lithium-ion battery pack rises, over time, due to the high pressure inside the battery and the imbalance of internal and external air pressure, there will be a phenomenon of bulging.
5. Mixing chargers, some car owners have more than one electric car at home and often mix them when charging the electric car. For example, using a 60 volt charger to charge a 48 volt battery, or charging a low to high volt battery for a long time can cause the battery to bulge.
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