Patent ID: 8491763
Filing Date: 2013-07-23
Classification: H01M,Y02E

Abstract:
1. An oxygen recovery system configured to recover evolved oxygen from a regenerative electrochemical cell, the regenerative electrochemical cell comprising (i) an oxygen reduction cathode, (ii) a fuel electrode comprising a fuel, the fuel electrode being configured to be a fuel anode for oxidizing the fuel when the electrochemical cell is operated to generate electricity and a cathode for reducing and electrodepositing the fuel thereon when the electrochemical cell is operated to regenerate the fuel, and (iii) an oxygen evolution anode that is configured to evolve oxygen from an electrolyte solution when the electrochemical cell is operated to regenerate the fuel, the oxygen recovery system comprising: an oxygen separator located downstream of the oxygen evolution anode in a recharge direction of flow, the oxygen separator being configured to separate the evolved oxygen from the electrolyte solution; and an oxygen recovery path disposed between the oxygen separator and the oxygen reduction cathode, the oxygen recovery path being configured to direct the evolved oxygen separated from the electrolyte solution to the oxygen reduction cathode.