What is the disadvantage of heating when the battery is charging?

What is the disadvantage of heating the battery when charging?

The battery releases a certain amount of heat during the entire charging process. However, the large amount of heat generated by the battery is very harmful to rechargeable batteries. First, the water content of the electrolyte will evaporate and dry first, the battery charging efficiency will be reduced, the electrode will be deformed, the internal resistance will increase, the air oxidation of mechanical parts will accelerate, and the electrode or material will burn. The main performance after ZUI is the decrease in battery capacity and shortened life.

What are the reasons for battery charging and burning?

In the entire process of battery charging, electromagnetic energy is partly converted into mechanical energy, and partly converted into energy and other kinetic energy. The rechargeable battery can be charged under all normal conditions, but the high temperature should immediately check whether the current is too large, whether the current is too large, the calorific value and the battery electrolyte have a relatively small correlation. If the battery electrolyte resistance is small, it will also cause the temperature of the rechargeable battery and The battery temperature rises. Deterioration of rechargeable batteries, dry battery electrolyte, internal short-circuit failure, etc. can also cause burns. The charging head cannot be a constant current source after the battery is charged, causing the working voltage of the rechargeable battery to exceed the control value, the temperature will rise, and the more serious will expand, and the life will end.

In the application, do not put it horizontally or upside down as much as possible to avoid a large amount of expansion in the rechargeable battery, which cannot be successfully discharged from the exhaust valve, especially when the battery is charged, or it may cause cracking.