Will the electric car battery explode if it is frozen in the refrigerator? Can you talk about the main working principle?

But be careful not to freeze for too long, because it will swell. If it is frozen for a long time, you should pay attention to whether the battery will expand and cause deformation and damage of the internal electrode plate.

The freezing temperature of electrolyte is generally around-10℃, but only the distilled water inside will freeze, and the freezing point of most liquids inside is very low, such as sulfuric acid. It doesn't usually explode.

And what you said about putting the battery in the refrigerator is just a measure to repair the battery. So don't put it in the refrigerator for a long time.