Cell voltage is a fundamental concept in electrical engineering, particularly within the realms of batteries and electrochemical cells. It refers to the electrical potential difference between the two electrodes of a cell. This potential difference is what drives the flow of electrons through an external circuit, allowing the cell to deliver energy to various devices. Though seemingly simple, cell voltage is crucial to the functionality of batteries, fuel cells, and many modern technologies that rely on energy storage.

Understanding and managing cell voltage is essential for optimizing the efficiency, safety, and lifespan of these technologies. As energy storage continues to play a pivotal role in our transition to more sustainable energy sources, the importance of cell voltage will only grow.