What is a battery composed of?

A battery is composed of a number of cells assembled in a common container. Each cell in a battery is a unit that generates electrical energy through a chemical reaction. When multiple cells are connected together, they work collaboratively to increase the overall voltage and capacity of the battery. This arrangement allows batteries to store and provide power for a variety of applications, from small electronic devices to larger systems like electric vehicles.

In contrast, a single cell would not be able to provide the same level of voltage or capacity as a battery composed of multiple cells. A series of resistors would not create stored energy, as resistors are components that dissipate energy rather than store it. Similarly, a network of capacitors is used for different applications, primarily for storing and releasing electrical charge, but not for long-term energy storage in the same way batteries do. Therefore, the correct understanding of a battery involves recognizing it as a collection of cells working together in a single container to fulfill energy storage and delivery functions.