Which is better, 18650 battery cell or lithium polymer battery cell.

This type of lithium battery cell refers to a rechargeable battery with a diameter of 18mm and a total length of 65mm. 0 indicates a cylindrical rechargeable battery. This technical aspect is relatively complete, with a stable battery structure, high specific capacity, and outstanding comprehensive performance. In addition, due to its small size, it can be applied to several industries and has key practical significance. The defect depends on its safety factor, which is not comparable to that of polymer lithium batteries. The cycle system frequency of lithium batteries is relatively low, only about 300 times.

18650 battery cells are usually cylindrical in shape and are usually designed with aluminum shell packaging. The key depends on the fact that the 18650 lithium-ion battery is mainly liquid, as if a water cup is filled with water, so the 18650 is only cylindrical.

However, the risk source of 18650 is still very high, and the key is that the packaging design of 18650 products generally uses steel casings. If the manufacturer encounters difficulties that cannot be controlled during the processing, resulting in poor product quality, it is very easy to encounter explosion difficulties.

Unlike traditional lithium batteries, the production process of polymer cells is different. Lithium batteries are produced by winding them together, with a relatively soft volume. The polymer is a layered structure with a relatively hard volume. Polymer and lithium batteries with the same volume have a large polymer volume, up to 30%. Good safety factor and low risk of explosion. Increase the usage period. The frequency of battery charging and discharging exceeds 500 times. The defect depends on the increase in cost, and polymer cells of the same volume are at least 100% more expensive than 18650 lithium-ion battery cells. The major safety hazards of lithium-ion batteries are liquid leakage and short circuit faults, which may cause difficulties in packaging. The most terrifying situation can lead to ignition and the generation of misfires.

At the beginning, the two raw materials for 18650 lithium cells and lithium polymer cells were different. The raw materials for 18650 lithium cells included lithium iron phosphate batteries, lithium manganese oxide batteries, and ternary lithium, while the raw materials for lithium polymer cells were generally a mixture of various raw materials such as lithium cobalt oxide batteries, lithium manganese oxide batteries, and ternary lithium. The former raw material has high purity and purity, while the latter raw material has extremely high composition.

The difference in safety factors between these two raw materials is very significant. The key reason for the 18650 lithium battery cell depends on the product packaging design of the aluminum shell, which makes it very prone to explosion incidents when the production and manufacturing product quality is not up to standard. But beginners in assembly may not be able to distinguish whether the 18650 lithium battery cells they buy and sell are of good product quality. For beginners, the difficulty level of getting started with 18650 lithium batteries is relatively high. How do we strongly recommend it? Overall, for the assembly of lithium batteries, beginners are interested in the assembly of lithium battery packs. The best lithium battery cells chosen by beginners are lithium polymer cells, which have high efficiency and safety factors. The key is that high safety factors are the most important. Ultimately, protecting one's own human safety is the key to doing what one wants to do.

Guangzhou Battsys Co., Ltd (NEEQ:837375), was founded in 2006, which is a join-stock high-tech enterprise engaging in ODM and OEM , specially for customized and diverse research&production of lithium-ion battery，BATTSYS annual production capacity is tens of millions battery cells. The products are exported to dozens of countries & regions such as Europe, America & Asia etc.