lithium polymer battery is just a liquid lithium-ion battery with a polymer shell. Aluminum plastic film packaging is adopted in the structure. In case of potential safety hazards, the soft pack battery will only blow up and crack at most. lithium polymer battery has the advantages of good safety performance, light weight, large capacity, small internal resistance, flexible design, etc. The internal composition of lithium polymer battery is not different from that of square and cylindrical lithium batteries. The biggest difference is that lithium polymer battery package uses aluminum-plastic composite film as the shell, and square and cylindrical batteries use metal materials as the shell
lithium polymer battery mainly refers to the material of lithium battery pack shell. If there is packaging outside, it is not easy to see. You must see the battery body. The weight of steel shell battery will be more important than that of battery with the same volume, but it is not easy to distinguish between aluminum shell and flexible packaging. However, flexible packaging battery will be a little softer than aluminum shell battery, and it is easy to deform by hand.
Is lithium polymer battery package safe?
Generally speaking, lithium polymer battery treasure is still very safe. It is basically safe as long as it is not violently impacted, punctured and put into the fire. It is safe to use it normally and strictly follow the instructions.
The security of lithium polymer battery package still needs to be improved. In fact, the root cause of combustion and even explosion of lithium battery pack lies in the thermal runaway inside the battery. In essence, "thermal runaway" is an energy positive feedback cycle process: the increased temperature will lead to the system heating, the system heating and increasing the temperature, which in turn will make the system hotter. Thermal runaway is a very common phenomenon.
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