Hyderabad:An electric bike suddenly caught fire in the Hosur area of Tamil Nadu. The bike owner and the locals tried to douse the flames. Though the fire initially subsided, the vehicle exploded with a loud noise after a few minutes. Watering usually puts off flames. But, the vehicle got gutted in the incident, shocking onlookers. This led to a debate as to how to put out the fire in an electric vehicle.
Experts warn that under no circumstances water should be used to contain fires in electric vehicles. It has been analyzed that the chemical reaction that occurs in the batteries of EVs when water is sprayed is likely to increase the severity of the accident. Electric cars and bikes are usually powered by lithium-ion batteries. Manufacturing defects and faulty packaging lead to battery overheating. Organic-based electrolytes in EV batteries can also cause fires due to internal chemical reactions. When doused with water, hydrogen gas and lithium hydroxide are generated. Due to the flammable nature of hydrogen gas, the vehicle may explode. EV experts say that only ABC powder should be used to extinguish fires in EVs. ABC powder forms a layer when sprayed on the EV battery, preventing further damage.