It is also a lithium battery. Why does everyone think that polymer lithium battery is safer than 18650 lithium battery? Most people think that polymer lithium batteries are safer and will not explode. This statement is indeed reliable, which is one of the advantages of polymer lithium batteries. As far as I know, the argument that polymer lithium battery is safer than 18650 lithium battery is mainly from the manufacturers and stores of some fake brands of mobile power supply (charging treasure) on Taobao website to attack the mobile power supply made of 18650 cells.
The main news related to the keyword "polymer lithium battery and 18650 lithium battery" on Baidu is related to mobile phones. However, there are no models of non polymer lithium batteries for mobile phones now. Therefore, it is not completely correct to say that polymer lithium battery is safer than 18650 lithium battery, Because no matter which model the lithium battery is, there is no saying that it will never explode. In addition to individual extreme explosion cases, bulging is almost a common problem of polymer lithium batteries, but it will not explode.
Polymer lithium battery and 18650 lithium battery (cylindrical lithium battery for short) have their own advantages and disadvantages. The shape of polymer lithium batteries can be made into square and flat shapes. This advantage is that polymer lithium batteries are widely used in lightweight portable electronic devices, most of which are used in mobile phones, ultra-thin notebooks, intelligent robots, lighting devices, etc. Whether its security is good or bad, as long as we can't live without these smart products, it's always in your hand or backpack.
Let's talk about 18650 lithium battery, which is often attacked by mobile power sellers. It is still used in most products on the market. It is still widely used in various electronic equipment, such as mobile power supply, electric bicycle, balance car, electric tools and other fields. And in high-end applications, such as professional imaging equipment, notebook batteries, 18650 lithium batteries have always been the main role, and the large-scale application of Tesla electric vehicles has improved the high safety image of this battery.
The production process and production process of 18650 lithium battery are mature, with good consistency and high capacity density. The advantages realized in high-capacity hybrid applications are unmatched by polymer lithium batteries.
When we need to consider the type of battery in our daily life, how should we choose the type of lithium battery? Taking the mobile power supply as an example, my point of view is: if you choose a brand, whether the polymer lithium battery or 18650 lithium battery is used, it is almost the same. For one difference, the mobile power supply made by 18650 cell is slightly heavier, but the capacity must be larger than that of polymer. The safety of the cell mainly depends on the quality control of the manufacturer, not whether it is a polymer or 18650 lithium battery.
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