What are the component parts of a battery called?

What are the component parts of a battery called? They are called electric cells. In modern technical language, a battery is made from one or more electrochemical cells connected to provide electrical power.

Each cell converts chemical energy into electrical energy through redox reactions. It contains two electrodes—the anode and cathode—and an electrolyte that permits ions to move internally. Electrons cannot cross the electrolyte in the same way, so they travel through the external circuit and can power a device.

Cells may be connected in series to increase voltage or in parallel to increase available current and capacity. A familiar alkaline “AA battery” is technically a single cell, even though everyday speech commonly calls it a battery. A car battery, by contrast, traditionally contains multiple lead-acid cells connected together.

The word battery originally referred specifically to an arrangement of multiple cells, but ordinary usage has broadened. Rechargeable batteries use secondary cells whose chemical reactions can be driven in reverse; disposable batteries use primary cells designed for one discharge cycle. Thus “electric cells” identifies the working units inside a battery, while the battery is the complete power source or assembly.