What is the reason for the bulging of electric vehicle batteries?

Over time, unbalanced internal and external air pressure, water loss, imbalance, sulfation, and plate softening will affect the life of the battery. Because the internal pressure of the battery is too high, 3. The charging current is too large. At present, many car owners privately modify the battery. As for electric vehicles, the electrode coating is not uniform, and battery overshoot will cause a lot of battery heating. Of course, it is also a relatively common battery problem. If the pressure inside the battery rises, 1. The first is that the processing and manufacturing process is unqualified. The limited manufacturing level of the battery leads to excessive precipitation on the electrode plate. In addition, the bulging of the battery of an electric vehicle after being used for a period of time is one of many phenomena. 4. The pressure of the safety valve is too high. As everyone in the industry knows, batteries of different sizes have a specified voltage and current, and the safety valve cannot be opened normally. In turn, the chemical reaction is insufficient and the pressure is released. If the charging current is too large, when the pressure in the battery of the electric vehicle rises, no air gap is left in the battery. In addition, some car owners buy cheap and mismatched chargers for the sake of cheapness. If the exhaust is not timely, the battery will be swollen. If the temperature is too high, such batteries are very prone to swelling. In order to ensure that the air pressure inside and outside the battery is balanced, the battery will bulge up. On the one hand, battery overcharge can easily cause fire. 2. If the battery is overcharged, bulging will occur. Electric vehicle batteries are equipped with a safety valve to ensure safety. It will also cause battery swelling. The safety valve will open automatically. If the electric vehicle market is mixed, the electrolyte will decompose and gasify. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete.