What kind of batteries are used in electric vehicles?
1 Answers
Currently, the vast majority of electric vehicles are equipped with lead-acid batteries due to their low cost and high cost-effectiveness. The role of lead-acid batteries: Lead-acid batteries are a type of battery that can store limited electrical energy. Their working principle involves converting chemical energy into electrical energy. They use lead plates filled with sponge-like lead as the negative electrode, lead plates filled with lead dioxide as the positive electrode, and a 22-28% dilute sulfuric acid solution as the electrolyte. During battery operation: During charging, electrical energy is converted into chemical energy, and during discharging, chemical energy is converted back into electrical energy. When discharging, metallic lead serves as the negative electrode, undergoing an oxidation reaction and being oxidized into lead sulfate.