Patent ID: 9127370
Filing Date: 2015-09-08
Classification: C25B,H01M,Y02E

Abstract:
1. An apparatus for power-free generation of hydrogen, wherein said apparatus comprises a first electrochemical cell and a second electrochemical cell, wherein said first electrochemical cell and said second electrochemical cell each comprises a membrane electrode assembly (MEA) having an electrolyte membrane sandwiched between an anode and a cathode, said MEA disposed between a cathode current collector and an anode current collector, a first gas diffusion layer disposed between said MEA and said cathode current collector, and a second gas diffusion layer disposed between said MEA and said anode current collector; a first chamber having an aperture; and a second chamber having an aperture; wherein said second electrochemical cell is disposed between said first chamber and said second chamber so that the anode of said second electrochemical cell is in fluid communication with said first chamber, and the cathode of said second electrochemical cell is in fluid communication with said second chamber; wherein said first electrochemical cell is disposed on the side of said first chamber opposite the second electrochemical cell so that the anode of said first electrochemical cell is in fluid communication with said first chamber, and the cathode of said first electrochemical cell is in fluid communication with an oxidizing agent; and wherein hydrogen generated into said second chamber during operation of said apparatus exits through said aperture therein.