From：CTECHI GROUP Limited Release time：2019-01-14
Overview：As the weather gets hotter and hotter, the probability of battery bulging in EV becomes larger. But do you know the reason for battery bulging in EV? CTECHI tells you that there are four main reasons for battery charging in summer.
As the weather gets hotter and hotter, the probability of battery bulging in EV becomes larger. But do you know the reason for battery bulging in EV? CTECHI tells you that there are four main reasons for battery charging in summer.
1. Fast charging leads to excessive charging current.
Usually, the battery of electric vehicle manufactured by the regular manufacturer has a certain value of charging current. Because of the high voltage and charging current caused by the frequent use of fast charging, it is easy to lead to the electrolyte precipitation on the electrode plate too fast, which leads to insufficient chemical reaction. At the same time, if the temperature in the battery body rises rapidly and the exhaust is not timely, there will naturally be bulging.
2. The thermal effect of charger runs out of control, resulting in overcharge of battery
On the one hand, because of the high temperature in summer, on the other hand, because of the quality problems of some chargers, the thermal effect of the charger runs out of control, and the charge current can not be adjusted according to the current of the battery. As a result, a large number of batteries are overcharged. After many times of overcharging, the battery will be charged.
3. Charge low voltage batteries with high voltage charger
In daily life, some users like to share a charger for the sake of it, but they don't know that the voltage mismatch between the charger and the battery will bring a devastating blow to the battery. Long-term charging of low-voltage batteries with high-voltage chargers will not only lead to battery charging, but also directly lead to battery scrap.
4. Frequent charging and discharging of batteries
Some users, due to work reasons, ride a long way to work every day, and a round trip, basically exhausted the battery, had to be charged every day. Because of the characteristics of lead-acid batteries, they can only charge and discharge about 350 times. Frequent charging and discharging will accelerate the decline of batteries and make it easier to happen bulging.
Finally, I would like to give you some suggestions. If you come back from work or riding, first stop the electric car for more than half an hour. After the battery is fully cooled, try to charge the electric car in the shade. In addition, it is necessary to control reasonable charging time, usually 8 hours, to avoid overnight charging. Of course, it is also important not to use fast charging and special chargers for cars.
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