What is a fuel cell

A fuel cell is an electrochemical device, which converts the chemical energy of a fuel into electrical energy and heat.

Fuel cells contain a gas tight membrane – the electrolyte – and two electrodes – anode & cathode – on either side of it.
  • As long as a fuel like hydrogen and air are led to the electrodes, electricity and heat is produced.
  • The electrical efficiencies are high as compared to electricity production through combustion, because fuel cells have only one conversion step from chemical to electrical energy and thereby fewer losses.
  • The product of the fuel cell process is water/steam, when hydrogen fuel is used.
  • There are no emissions of toxic NOx gasses and the operation is silent with no moving elements.