Hydrogen fuel cells are devices that convert chemical energy from hydrogen into electricity through a chemical reaction with oxygen. This process produces only water and heat as byproducts, making it a clean and efficient energy source. Hydrogen can be stored and transported easily, which makes it a promising alternative to fossil fuels for powering vehicles and generating electricity.
In a hydrogen fuel cell, hydrogen gas enters one side, while oxygen from the air enters the other. The reaction between these gases generates electricity, which can power electric motors or charge batteries. Companies like Toyota and Honda are developing vehicles that use hydrogen fuel cells, contributing to a more sustainable future.