Why will the battery car burst into flames? How to scientifically prevent the tragedy?
Why did the battery car fire? Liu Changguo, the chief engineer of Sichuan Yingnengji Technology Co., Ltd, said that due to the high energy density and very strong activity of lithium batteries of ternary materials, in recent years, whether it is electric cars or electric bicycles, fires, explosions in vehicles, the vast majority of the batteries used for lithium batteries of ternary materials.
However, when these batteries are used for two years or more, the electrolyte in the battery will be aged to varying degrees and flammable gas will be produced inside, and the electrolyte itself is a flammable liquid, so safety hazards arise.
Overall, the car battery fire and explosion in the charging and power generation process can be summarized for the following reasons.
First, the battery is too long, generally speaking, the use of more than three years, the battery will be aging, the consistency of the internal material will gradually deteriorate, resulting in overcharging when charging, the battery internal material self-management out of control.
Second, many soft packaging and square batteries, use for two years or more than two years, the internal SEI film (battery positive and negative isolation film) damage resulting in gas or foreign movement, eventually leading to battery short circuit.
