Dual ionic conductive membrane for molten carbonate fuel cell.

Within this study, the electrochemically inert, molten carbonate fuel cell (MCFC) γ -LiAlO 2 matrix is replaced by oxygen ion conducting ceramics, typical for solid oxide fuel cell (SOFC) application. Such solution leads to synergistic ion transport both by molten carbonate mix (CO 3 2- ) and yttria-stabilized zirconia (YSZ) or samaria-doped ceria (SDC) matrix (O 2- ). Single unit cell tests confirm that application of hybrid ionic membrane increases the performance (power density) of the MCFC over pure γ -LiAlO 2 for a wide range of operating temperatures (600 °C–750 °C). Cell power density with SDC and YSZ matrices is 2% and 13% higher, respectively, compared to the γ -LiAlO 2 at typical 650 °C operating temperature of MCFC. [ABSTRACT FROM AUTHOR]