18650 Lithium Battery, Polymer Lithium Battery: Which Is Safer

It seems that the general public opinion is that polymer lithium batteries are safer and are said to never explode. As far as I know, the argument that polymer lithium battery is safer is mainly from Taobao Shanzhai mobile power supply manufacturers, which use polymer lithium battery as a selling point to attack products with 18650 cells.

You can use "battery explosion" as the key word. Du niangzhi, the main news is related to mobile phones. However, there are no models of non polymer lithium batteries in mobile phones. Therefore, the argument that polymer lithium batteries are safer than 18650 lithium batteries is untenable, and there is no argument that they will never explode. In addition to some extreme explosion cases, the bulging phenomenon is almost a common problem of polymer lithium batteries.

Of course, the polymer lithium battery has its unique and irreplaceable advantage of 18650 (cylindrical) lithium battery: square flattening, which makes it play a great role in light and thin portable electronic devices. In addition to mobile phones, which are highly relied on by everyone, polymer lithium batteries are also used in ultra-thin notebooks. No matter whether its security is high or low, as long as we can not leave the mobile phone, it is in your hand or in your pocket. Polymer lithium batteries do not represent lighter and thinner. Light or heavy is always closely related to energy density. No matter whether the battery is cylindrical or square, the volume and weight of polymer lithium battery with the same capacity and 18650 lithium battery are not significantly different in the same period.