US Patent 11909085 Air electrodes of solid oxide electrochemical cells

Disclosed are air electrode materials suitable for use in solid oxide electrochemical cells (SOCs). The disclosed cells can operate in a dual function modes, i.e., as a fuel cell and as an electrolysis cell. In both cases, chemical energy and electrical energy can be directly convert from one mode to the other; thereby providing a highly efficient energy conversion process that can be used as a sustainable energy source.