The history of why the explosion

Most of them are packed in steel boxes. Inferior batteries are not protected. In the case of overcharge (overcharge), the internal pressure will suddenly increase. Problems such as short circuit, high temperature, battery deformation and even breakdown can cause an explosion.

After 30 years of development, the 18650 battery preparation technology has been very mature, in addition to the performance has been greatly improved, its safety is also very perfect. In order to prevent the sealed metal casing from exploding, the 18650 battery now has a safety valve on the top, which is the standard and the most important explosion-proof barrier for every 18650 battery.

When the internal pressure of the battery is too high, the top safety valve opens to release the pressure to prevent explosion. However, when the safety valve is opened, the chemical substances released by the battery react with oxygen in the air at high temperatures, which may cause a fire. In addition, some 18650 batteries now have their own protective plates, with overcharge, over-discharge, short-circuit protection and other functions, with high safety performance.

The mobile power supply before the explosion, because the manufacturer used inferior 18650 batteries in order to save costs, and even caused a waste of second-hand batteries. The current important 18650 battery battery manufacturers such as Panasonic, Sony, Samsung, etc. are actually very safe, and the battery utilization rate in 18650 is very high, we can use it correctly in daily use to prevent battery short-circuit, damage or excessive temperature , Don’t worry about battery explosion. We can’t use bamboo poles to overturn the boat, and use personal inferior products 18650 to be safe.