What role does an electrochemical cell typically perform in a battery?

An electrochemical cell is fundamental to the operation of a battery, as it is responsible for converting stored chemical energy into electrical energy. This process occurs through chemical reactions that take place within the cell, typically involving the movement of electrons from one chemical species to another.

In a battery, when the cell is connected to a load, these reactions generate a flow of electrons, creating an electric current. This transformation from chemical energy during the battery's discharge phase is what allows electrical devices to operate. Essentially, the electrochemical cell acts as the powerhouse of the battery, facilitating energy transfer in a form that is usable for powering electronic components.

Thus, the core function of an electrochemical cell in a battery directly ties to its ability to produce electrical energy from chemical reactions, making the conversion of stored chemical energy to electrical energy the crucial role it plays.