PLD Preparation of La0.9Sr0.1Ga0.8Mg0.2O3-d/Ce0.8Sm0.2O2-d Composite Film and High Power Solid Oxide Fuel Cell

Abstract

A high performance SOFC single cell with La0.9Sr0.1Ga0.8Mg0.2O3-d (LSGM)thin film (5 micron in thickness) as electrolyte, working at 400-700C willbe demonstrated. A Ce0.8Sm0.2O2-d (SDC) interlayer (400 nm in thickness)was introduced between the anode substrate of NiO-Fe2O3-SDC and the LSGMthin film to prohibit the reaction between LSGM and NiO and also to promotethe electrode processes. Both SDC and LSGM films were deposited by pulsedlaser deposition. The peak power density reached 3270 mW/cm2, 1951 mW/cm2,612 mW/cm2 and 80 mW/cm2 at 700, 600, 500 and 400C, respectively, which maybroaden the SOFC application to the mobile field.