Will a Swollen and Overheated Battery Explode?
1 Answers
Automotive battery swelling generally does not lead to explosion. However, during hot weather, charging can easily cause fires, which is extremely dangerous. The outer casing of electric vehicle batteries is mostly made of plastic. When exposed to high temperature and pressure, deformation can occur. Therefore, battery deformation is caused by "thermal runaway" during the charging process. The reasons for battery swelling are as follows: Reason 1: Using a charger that does not match the battery, where voltage and current mismatch lead to overcharging and swelling. Reason 2: Using a low-quality charger. Reason 3: Prolonged charging time causing battery swelling. Reason 4: Frequent use of fast charging stations, where high-current charging leads to severe gas evolution and water loss, resulting in swelling. Reason 5: Poor battery quality can also cause swelling.