Unlike traditional lithium batteries, polymer cells are produced in a different process. Lithium batteries are coiled together and have a soft volume. The polymer is a layered structure with hard volume. The same volume of polymer and lithium battery, polymer volume is very large, up to 30%. Good safety factor, low risk of explosion. Increase service life. Batteries are charged and released more than 500 times. The defect depends on the cost increase, with a polymer cell of the same volume being at least 100% more expensive than a lithium cell of an 18650 Li-ion battery. The safety risk of lithium lithium cell is that liquid leakage and short circuit fault are likely to cause the difficulty of packaging, and the most terrible situation will result in the ignition condition, resulting in gentle fire.

　　At the beginning, the two raw materials of 18650 lithium cell and lithium polymer cell are different. The raw materials of 18650 lithium cell include lithium iron phosphate battery, lithium manganate battery and ternary lithium, etc., while the raw materials of lithium polymer cell are generally a mixture of lithium cobalt acid battery, lithium manganate battery and ternary lithium, etc. The former raw material is of high purity, while the latter is of high composition.

　　The safety factor of these two raw materials is very different. The key reason of 18650 lithium battery cell depends on the packaging design of aluminum shell, which makes it very easy to produce explosive events when the quality of the products is not up to standard. But the entry assembly is likely to be unable to identify their own sales of 18650 lithium cell is not product quality clearance, there are novice, 18650 lithium cell entry difficulty coefficient is higher, how strongly recommended? Generally, in view of the lithium battery assembly, novice interested in lithium battery pack of the assembled hobby, novice selected lithium batteries, lithium polymer batteries, best key is the efficient energy it is higher safety coefficient, the key is high safety coefficient, the most important in the final analysis to safeguard their own human safety can do what you want to do.

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