ELECTRODES FOR LANTHANUM GALLATE ELECTROLYTE-BASED ELECTROCHEMICAL SYSTEMS

摘要

An electrochemical cell (100) is disclosed in one embodiment of the invention as including an oxygen electrode (104) and a solid oxide electrolyte (106) coupled to the oxygen electrode (104) to transport oxygen ions. A hydrogen electrode (102) is coupled to the solid oxide electrolyte (106) and contains nickel combined with a material tending to reduce the reactivity of the nickel with the solid oxide electrolyte (106). In selected embodiments, the solid oxide electrolyte is lanthanum gallate. Similarly, the material combined with the nickel may be an oxide such as magnesium oxide.