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In the post electric vehicle era, the development trend of lithium batteries is unstoppable. Compared with traditional lead-acid batteries, the "money" prospects for dealers are broader. But the mixed environment of fish and dragons has made many dealers fearful about what kind of lithium battery is safe and reliable.
The biggest concern of so-called dealers about lithium batteries is the unstable performance of lithium batteries. The recent multiple incidents of lithium battery explosions have once again pushed the factor of product safety and stability to the forefront of public opinion. Here, the author has to mention a question that all battery dealers and users are most concerned about: why do good lithium-ion batteries explode?
Lithium battery explosion: Five major reasons are the culprits
For the issue of lithium battery explosion, the technical engineer of Haisida brand told me that the most core factors are the following:
1. A short circuit can lead to an explosion. A sealed internal short circuit can cause the battery to generate high temperatures in a short period of time and allow the liquid and a small amount of steam inside to expand, creating a large amount of gas that cannot be expelled from the vent valve in time, resulting in a high temperature and pressure in a short period of time, leading to an explosion;
2. Poor quality lithium battery manufacturers have insufficient cleanliness and dryness during the coating and winding processes, allowing too much moisture and impurities to enter the battery, leading to explosions;
3. The electrolyte used in lithium batteries is not qualified and can decompose water under certain conditions, leading to explosions;
4. The adhesive is not qualified, causing powder to fall off and burrs to form, resulting in membrane puncture, internal short circuit, and ultimately leading to lithium battery explosion;
5. Thermal runaway caused by overcharging, once a lithium battery is overcharged, the voltage will rapidly rise, ultimately leading to an explosion;
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