Why is the 18650 lithium-ion battery burns and exploded?

　　Author ：Iflowpower – Leverantör av bärbar kraftverk

18650 Battery Battery is encapsulated by a steel shell, and the battery is not high due to no protection function. In the case of overcharge (excessive charging), it will increase its internal pressure, and when the value is exceeded, it will explode. The short circuit, too high or battery extruded deformation or even puncture can cause battery explosion.

After 30 years of development, the 18650 battery preparation process has been very mature, except for performance, its security is also very perfect. In order to prevent the metal housing of the alert, it is exploded in the top of the 18650 battery. The safety valve is the standard of 18650 batteries, and the most important explosion-proof barrier.

When the internal pressure of the battery is too large, its top safety valve will open the exhaust reduction, alert explosion. However, after the safety valve is opened, the chemical that is disclosed inside the battery will chemically react with oxygen in the air under high temperature conditions, and still possible to appear. In addition, this 18650 battery is also self-contained, with a full-filled and short-circuit protection, and the safety performance is very high.

And the previous mobile power explosion event, all because no manufacturers use unqualified poor 18650 batteries, even second-hand waste electricity. At present, 18650 batteries, such as Panasonic, Sony, Samsung, etc. Too high temperature, do not have to worry about the battery explosion.

We can't overturn a boat, with individual inferior products to be qualified 18650 security. .