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

This type of lithium battery core refers to a rechargeable battery with a diameter of 18mm and a total length of 65mm. It is a cylindrical rechargeable battery. The technology is relatively complete, the battery structure is stable, the specific volume is high, and the overall performance is outstanding. In addition, because of its small size, it can be used in several industries and has key practical significance. The defect is that its safety factor is not as good as that of polymer lithium batteries. The frequency of the circulation system of lithium batteries is relatively low, only about 300 times. 18650 batteries are usually cylindrical, and are generally designed for packaging products with aluminum shells. The key depends on, because the 18650 lithium battery is mainly liquid, as if a glass of water is filled with water, so the 18650 is only cylindrical. However, the risk source of the 18650 is still very large. The key is that the product packaging design of the 18650 generally uses a steel cover. If the processing factory has problems that cannot be manipulated during the production process and the product quality is not good enough, it is very easy to cause an explosion. The difference between polymer batteries and traditional lithium batteries is that the processing process of polymer batteries is different. Lithium batteries appear coiled together, and the volume is relatively soft. The polymer has a layered structure and has a hard volume. The polymer and lithium batteries of the same volume have a large polymer volume, which can reach 30%. The safety factor is good and the risk of explosion is low. New usage period. The battery is charged and discharged more than 500 times. The defect depends on the cost increase. The polymer cell of the same volume is at least 100% more expensive than the 18650 lithium battery lithium cell. The greater safety hazard of lithium-ion batteries is that liquid leakage and short-circuit failures are likely to cause difficulties in picking up the bag. The most terrible situation will cause ignition and slow fire. Which one is better, 18650 battery cell or lithium polymer battery cell? At the beginning, the two raw materials of 18650 lithium batteries and lithium polymer batteries were different. The raw materials for 18650 lithium batteries were lithium iron phosphate batteries, lithium manganese batteries and ternary lithium, etc., while the lithium polymer batteries The raw materials are generally a mixture of various raw materials such as lithium cobalt oxide batteries, lithium manganese oxide batteries and their ternary lithium. The former raw material has high single purity, and the latter raw material has extremely high composition. The safety factors of the two raw materials are very different. 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 explosions when the quality of the processed and manufactured products is not good. However, people who start to assemble may not be able to identify whether the 18650 lithium batteries they buy and sell are of product quality. For novices, the difficulty of getting started with 18650 lithium batteries is relatively high. How to strongly recommend it? Generally speaking, for the assembly of lithium batteries, novices are interested in the assembly of lithium battery packs. The lithium battery cell chosen by the novice is the best lithium polymer battery cell. The key is that its high efficiency energy is relatively high safety factor. High safety factor is the most important thing. In the final analysis, you can do what you want to do by protecting your own human safety. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: Are lithium batteries really environmentally friendly?