Electrolysis: Fuel Generation Using Electricity
Electrolysis is the electrochemical process that uses electricity to separate chemically bonded elements, possibly as a way of making fuel.
In an electrolysis device, a bath of the substance to be electrolized, in the form a solute or solvent, surrounds electrodes -- anode and cathode -- that are given different electrical potentials by being connected to a source of electrical power. The separated compounds or elements collect around the respective electrodes as anions and cations.
Electrolysis of water produces oxygen and hydrogen gases.