The probability of the battery exploding is 0.0072%.
The probability of ternary lithium battery explosion is generally very low, about 0.0072%, but under extreme circumstances, such as overcharge, overdischarge, high temperature, short circuit, etc., explosion will occur.
Ternary lithium battery is a kind of lithium battery. The positive electrode material uses lithium-nickel-cobalt manganate (ternary material) or lithium-nickel-cobalt aluminate. The negative electrode material uses graphite. salt.
The explosion of the electric vehicle was caused by a ternary lithium battery. Lithium battery explosions are caused by thermal runaway or damage to the separator. Thermal runaway is easy to understand, it is overheating. If the lithium battery overheats, it will takefire and explode.
Basically, there is a separator inside the lithium battery. If the separator is damaged, the positive and negative electrodes will immediately contact each other, causing a short circuit. If the battery is short-circuited, it will explode instantly. Of course, when using lithium batteries, be careful not to puncture the battery. This is fundamentally very dangerous behavior.
When charging, be careful not to overcharge, and the voltage and current should not exceed the limits. If the voltage and current exceed the limit, the temperature of the lithium battery will also be too high, which can easily cause the lithium battery to explode and fire.
Lithium batteries commonly used in pure electric vehicles
There are two types of lithium batteries commonly used in pure electric vehicles, one Eastthe lithium iron phosphate battery and the other is It is a ternary lithium battery. Ternary lithium batteries have high energy density and light weight, but their safety factor is poor.
Lithium iron phosphate batteries have a very good safety factor, but their energy density is low. Lithium iron phosphate batteries will only burn at 800 degrees Celsius, while ternary lithium batteries will start burning at 200 degrees Celsius.