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Is the bulging of the polymer lithium battery dangerous?

by:dcfpower     2021-02-23
u003cpu003eu003c/pu003eu003cpu003e   I think everyone may have seen or heard of battery bulging and swelling, and there are even news incidents of explosion casualties caused by polymer lithium battery pack bulging. So why does polymer lithium battery pack bulge? It turned out that the internal diaphragm was damaged and gas was generated inside the battery. If the battery is swollen, it will affect the use and cannot be put into the mobile phone or digital camera. In addition, the presence of gas between the battery plates will also affect the charge and discharge capacity of the battery. Lithium batteries have strict requirements on the charger and cannot be connected to the power supply at will For sloppy charging, you must use a special charger for lithium batteries (such as balanced charging and safe charging). If the charger used does not meet the requirements, the battery may be swollen at the slightest, and a safety accident or even an explosion may occur. may. The battery must not be used anymore. Recycling is currently not realistic in China. Can only be scrapped. u003c/pu003eu003cpu003e   So I remind everyone that the drum kit is already a precursor to a big problem, and it is not recommended to use it. It may be short circuit, heat, smoke, burning and other unimaginable consequences. The current lithium batteries are all ion batteries (the interior is no longer in the form of lithium metal, it seems that the lithium metal and the moisture in the air burn or even explode, so it is relatively safer), all lithium-ion batteries, no matter the previous ones, These years, including: polymer lithium-ion batteries, lithium iron phosphate batteries, etc., are very afraid of internal short circuits, external short circuits, and overcharging. The bulge is caused by the accumulation of irreversible dendrites on the plate. The correct usage is that in most cases, only half of the power is used up and then the power is supplemented. In rare cases, a complete discharge and full charge maintenance (such as It takes a few months to half a year to completely discharge and charge once. Frequent full charge and discharge are easy to grow crystals). This can greatly reduce the amount of crystals and significantly slow down the bulging phenomenon. The bulging lithium battery pack can be directly discarded, because the power capacity is already very small, and there is no power to speak of after a short circuit. Lithium batteries generally need to be professionally recycled to prevent pollution. If they cannot be disposed of, they can be thrown into the sorted recycling trash bin at the service point of the telecommunications service provider. u003c/pu003eu003c/pu003e
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