to me lithium ion batteries in phones, and how they overheat
In: Technology
Lithium is a metal used in many modern batteries for its light weight and high performance. It’s also very volatile, burning even in water and nitrogen, so lithium batteries are packed into several layers of protective shells.
All electronics produce heat as electric current passes through them. If a device is very compact, it will transfer some of the heat to the battery; excessive heat may warp its layers, wearing out the internal structure. As a lithium battery wears out, its internal resistance grows, causing even more excess heat; it also emits flammable gases that bloat the shell.
If emergency overheat shutdown malfunctions or you neglect a visibly warped/bloated battery, it may turn into a runaway cycle of heating, rupturing the battery and turning it into a fireball.
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