How Do Lithium Batteries Work In Electric Cars
Lithium-ion batteries are a type of rechargeable battery that are commonly used in electric vehicles (EVs). They work by using lithium ions to move back and forth between the positive and negative electrodes of the battery during discharge and charging, respectively.
During discharge, lithium ions are released from the negative electrode (also known as the cathode) and travel through an electrolyte to the positive electrode (also known as the anode). At the same time, electrons flow from the negative electrode to the positive electrode through an external circuit, creating an electric current that can be used to power the car’s electric motor.
During charging, the process is reversed. Lithium ions are attracted back to the negative electrode, and the electric current flowing through the external circuit forces the ions to move back across the electrolyte to the negative electrode. At the same time, the electrons flow in the opposite direction through the external circuit, back to the negative electrode.
Lithium-ion batteries have a number of advantages over other types of batteries, such as lead-acid batteries, that make them well-suited for use in electric vehicles. They have a high energy density, meaning they can store a lot of energy in a relatively small and lightweight package. They also have a low self-discharge rate, meaning they can hold onto their charge for a long time when not in use. Additionally, they have a long lifespan and can be recharged many times before they need to be replaced.