What should I do if the electric vehicle battery swells?
by:Vglory 2021-04-24
Electric vehicle batteries are the power source of electric vehicles, and battery problems affect the driving of electric vehicles. However, everyone often encounters various problems with batteries. I will talk about the reasons and solutions for the swelling and deformation of electric vehicle batteries in the following small time. 1. The charger is unqualified or does not match. In this case, the charger must be replaced. 2. The quality of the battery itself. This kind of battery is mainly caused by uneven addition of acid or insufficient amount of acid in the battery production process, but the number of this phenomenon is extremely small. 3. The battery charging current is too large or the charging time is too long. When the battery charging current is too large or the charging time is too long, the electrolyte temperature will rise rapidly and generate a large amount of gas, which will loosen the active material on the battery plate, resulting in The battery is swollen. 4. Vulcanization of battery plate The cell voltage and electrolyte temperature will rise rapidly during the high-current charging process of the battery plate vulcanized, and the bubble generation will be early and violent, which can easily cause the battery to swell. 5. The electrolyte viscosity is too high. When the temperature is too low, the electrolyte viscosity is high, the speed of penetrating into the pores of the electrode plate is slow, the internal resistance increases, and the voltage drop consumed on the internal resistance during discharge will also increase, which will cause the electrolyte temperature The rapid rise produces a large amount of gas, which increases the gas pressure inside the battery. If the battery is over-discharged at this time, the temperature of the electrolyte will rise faster and more gas will be generated, which will increase the gas pressure inside the battery, which will easily cause the battery to burst. In addition, the explosive gas generated during the charging process of the battery, if it encounters an open flame, will immediately cause an explosion, causing the battery to burst. Therefore, the charging room must be well ventilated, and fireworks are strictly prohibited. 6. u200bu200bThe electrolyte dries up The battery will lose water after long-term use, and the electrolyte will dry up. At this time, overcharging will cause the battery to bulge. I believe that everyone has a certain understanding of the swelling of electric vehicle batteries after reading these. If you want to know more about electric vehicle battery issues, you can follow our official website. Previous: Which is better, lead-acid battery or lithium battery?
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