Application of LaNi(Fe)O3 as Air Electrode of Solid Oxide Fuel Cells | Zendy

Himeko Orui | Zendy

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Application of LaNi(Fe)O3 as Air Electrode of Solid Oxide Fuel Cells

Author(s) -

Himeko Orui

Publication year - 2003

Publication title -

ecs proceedings volumes

Language(s) - English

Resource type - Journals

eISSN - 2576-1579

pISSN - 0161-6374

DOI - 10.1149/200307.0571pv

Subject(s) - sintering , materials science , electrode , oxide , cubic zirconia , chemical engineering , fuel cells , solid oxide fuel cell , contact resistance , cathodic protection , layer (electronics) , composite material , metallurgy , electrochemistry , ceramic , chemistry , anode , engineering

The relationships between the LaNi(Fe)O 3 (LNF) sintering temperature and the reactivity with scandia- and alumina- stabilized zirconia (SASZ), the contact resistance of the LNFISASZ interface, and the cell performance were studied to investigate the potential of LNF at low cell operation temperatures. We demonstrate that the constant current operating (CCO) treatment of cells with LNF sintered at 900, 1000 and 1100°C overcomes the trade-off between the adhesion of LNF/SASZ and the interfacial resistance, mainly due to the reaction layer generated in high-temperature sintering, and improves cell performance. The cathodic interfacial resistance becomes one order of magnitude smaller after CCO treatment and that the cell with LNF sintered at 1000°C generates the maximum power density of 1.56 W/cm 2 at 800°C.

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