lithium 18650 battery.Advantages of 18650 lithium battery and polymer lithium battery

　　The polymer battery cell is lightweight in shape and is the most beautiful in the lithium battery industry. The appearance can be customized at will and the battery can be slim. In this way, a mobile charger that chooses a polymer battery cell can also be designed in terms of appearance. More importantly, many smart wearable device batteries now basically use polymer lithium batteries, which can make the design of their products more fashionable and casual.

　　1. Advantages of 18650 lithium battery and polymer lithium battery

　　1. The 18650 lithium battery is cylindrical with a transparent liquid inside. This is because of the battery design and materials. 18650 is suitable for large currents, so almost all notebooks and battery cars are basically designed with 18650 batteries. Only notebooks, due to resource conservation, can directly use polymer lithium batteries without the need for 18650 batteries, especially tablets; digital cameras, because the flash battery charging requires a high voltage and a large current. , so only 18650 rechargeable batteries are used, and the capacity is slightly smaller;

　　2. The advantages of polymer lithium batteries are small size and large capacity. The disadvantage is that the service life is shorter than 18650. This is because different designs and materials are used. Some of them are completely transparent liquid inside, and some are The high-current charge and discharge characteristics of dry or collagen batteries are not as good as those of 18650 cylindrical batteries, so they require large-space and small-volume power-consuming equipment. Polymer lithium batteries are generally used. The most common performance is Mobile phones, tablets, etc.

　　2. The service life of lithium batteries is only two or three years.

　　Generally, lithium batteries can be charged and discharged 300-500 times. Partial charging and discharging of lithium batteries is more effective than complete charging and discharging, so frequent complete charging and discharging should be avoided as much as possible. When the rechargeable battery enters the production line, the clock starts working. Regardless of whether you use it or not, the service life of lithium batteries is only two or three years.

　　"Lithium battery" is a rechargeable battery with lithium metal material or lithium aluminum alloy as the negative stage. It uses non-hydrolytic reaction solution. Lithium metal batteries were first proposed and studied in 1912. In the 1970s, lithium batteries were proposed and scientific research began. Because lithium metal has strong chemical specificity, it has high environmental requirements during processing, storage, and use. Therefore, lithium batteries have not been used for a long time. With the development of technology, lithium batteries have become popular.

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