Process

• In the anode, a chemical reaction causes the electrons and protons of the hydrogen atoms to split apart. The electrolyte has an especially designed film that allows the protons to pass through, but not the electrons. The protons naturally gravitate to the other side of the cell, leaving a build-up of negative cell where the hydrogen has split apart. This charge is channeled away from the anode as electrical current, used to power devices and then returned to the cathode side of the cell.
  In the meantime, air has free access to the plate on the cathode. Air is made of many different elements, of course, but one of them is oxygen. When the returning electrons, passing protons and oxygen from the air meet, they create another chemical reaction, combining to form bonds between two hydrogen atoms and one oxygen atom, creating water. The reaction also produces a certain amount of heat, which the more complicated designs incorporate to help power other systems.
  
  

Benefits

• In the above situation, the hydrogen fuel cell powers an electrical engine and can keep working as long as the supply of hydrogen fuel (and air) lasts. It produces almost no harmful emissions, can be used with a variety of equipment and runs quietly.