The standby battery has been developed for decades from its birth to now. Most mobile phones on the market are also equipped with the standby battery. Despite decades of development, the standby battery is still not guaranteed to be 100% safe, and may even explode under certain circumstances.
Spare battery the most taboo, is to use conductive sharp objects to puncture the surface, which is very likely to bring an explosion. As anyone who has watched him in the wilderness knows, he often starts a fire by inserting a knife into a spare battery.
Recently, Weibo users shared a video of a man in a shopping mall biting a battery with his teeth to test its authenticity, which exploded.
A man trying to change the battery for his mobile phone at a computer mall put it in his mouth and tried to bite it to test its authenticity. As a result, the surface of the battery was punctured and exploded, but no one was injured.
Why do batteries explode?
Mobile phones and laptops use lithium-ion batteries, which are commonly referred to as back-up batteries. Batteries typically use materials containing lithium as electrodes.
To put it simply, the negative electrode is responsible for storing positively charged ions, and the positive electrode is responsible for storing negatively charged ions, from which lithium ions move to the positive electrode during charging. When the battery is working, the lithium ions move in the opposite direction.
The two poles of the battery themselves should never be in contact with each other, so the battery manufacturer will place a diaphragm between the poles. If the diaphragm breaks under the influence of external factors, all the energy in the battery will rush to the electrolyte instead of the poles (electrolyte is the carrier of ion transmission in the spare battery), the electrolyte itself is a kind of unstable chemical substance. Too much energy in contact with the outside world, and it heats up a lot, and even fires and explodes.
