An electrical battery is a device that stores chemical energy and converts it into electrical energy. It consists of one or more electrochemical cells.
Batteries work on redox reactions. Electrons flow from the anode (-) to the cathode (+) through an external circuit, providing power to devices.
– Primary Batteries (Non-rechargeable): Alkaline, Zinc-Carbon, Lithium. – Secondary Batteries (Rechargeable): Lead-Acid, Li-ion, Ni-Cd, Ni-MH.
Which battery type is commonly used in electric vehicles?
A) Lead-Acid B) Nickel-Cadmium C) Lithium-ion D) Zinc-Carbon
C) Lithium-ion Lithium-ion batteries are widely used in electric vehicles due to their high energy density, longer lifespan, and lightweight nature compared to other battery types.