A fuel cell is an electrochemical device that converts the chemical energy of a fuel directly into electrical energy through a chemical reaction. It operates much like a battery, generating electricity as long as fuel is supplied, but unlike a battery, it doesn’t need recharging; it can continuously produce electricity as long as fuel is available.
The basic components of a fuel cell include:
Anode: Where fuel, typically hydrogen gas or hydrogen-rich fuels like natural gas or methanol, is oxidized, releasing electrons.
Cathode: Oxygen (usually from the air) is supplied to the cathode, where it reacts with electrons and protons that have traveled through an external circuit from the anode.
Electrolyte: A membrane or electrolyte that allows ions to pass through while blocking the electrons. This ensures the separation of the oxidizing and reducing agents, enabling the flow of ions to create an electrical current.
