High Performance Planar Solid Oxide Fuel Cell Fabricated with Ni-Yttria Stabilized Zirconia Anode Prepared by Electroless Technique

摘要

Nickel (Ni)-8 mol% yttria stabilized zirconia (YSZ) cermet prepared through novel electroless technique is used as solid oxide fuel cell anode. The developed anode (28 vol% Ni) is used in two different configurations, viz. anode support and anode active layer (AAL). Highest electrochemical performance of 3.2A/cm~2 with lowest cell area specific resistance (～94mΩcm~2 ) at 800℃ is obtained from anode-supported single cell having an optimized 15μm electroless AAL. Electrochemical performances are correlated with anode pore-size distributions. Such high performance cells also exhibit significant low degradation rate (～2% 1000 h~(-1) at a load 0.5 A/cm~2) during long-term testing.