 A multi-stage electrochemical hydrogen compressor incorporates a series of membrane-electrode-assemblies (MEAs), similar to those used in proton exchange membrane fuel cells; this type of compressor has no moving parts and is compact.The electrochemical compressor works similar to a fuel cell, a voltage is applied to the membrane and the resulting electric current pulls hydrogen through the membrane.With electrochemical compression of hydrogen, a pressure of 14500 psi (1000bar or 100MPa) is achieved.