Why do batteries explode
Recently, some Weibo users shared a short video of a man biting a battery with his teeth in a shopping mall to test whether the battery is real or fake.
In Computer City, a man tried to replace his phone's battery at a counter, actually putting the battery in his mouth and trying to take a bite to test its authenticity. Result: The battery surface exploded after being pierced, but no casualties were reported.
Why do batteries explode?
Both cell phones and laptops use lithium-ion batteries, commonly known as lithium-ion batteries. Batteries typically use lithium-containing materials as electrodes.
In short, the negative electrode is used to store positively charged ions, while the positive electrode is used to store negatively charged ions. During charging, lithium ions move from the negative electrode to the positive electrode for a period of time. When the battery is working, the lithium ions move in the opposite direction.
The poles of the battery themselves should never touch each other, so the battery is placed in a gap between the north and south poles, if under the influence of external factors, such as the gap is broken, all the energy will flow to the battery's electrolyte instead of the north and south poles (electrolyte). The liquid is the carrier of the ion transport of lithium-ion batteries, and the electrolyte itself is a volatile chemical substance. After receiving too much energy, it contacts with the outside world, causing a lot of heat and even a flame explosion.
