Patent ID: 7282294
Filing Date: 2007-10-16
Classification: B82Y,H01M,Y02E

Abstract:
1. A dual mode electrochemical system comprising: a first electrode capable of storing hydrogen; a second electrode; a substantially electrically insulating and substantially ionically conducting membrane interposed between the first electrode and the second electrode; and an electrolyte; wherein in a first mode upon introduction of water and electricity said dual mode electrochemical system electrolyzes said water in the presence of said electrolyte and produces hydrogen and oxygen across said membrane and said hydrogen is stored by said first electrode; and in a second mode upon introduction of an oxidant to said second electrode said dual mode electrochemical system produces water and electricity by reacting said stored hydrogen and said oxidant across said membrane; wherein said first electrode is an anode and said second electrode is a cathode; and wherein said cathode comprises a material selected from a group consisting of doped LaMnO