로드 조건에 따른 고체산화물 연료전지 공기 극의 성능연구

The microstructure of electrode were characterized by plate-like agglomerates. It becomes more sphere-like porous structure while the current passed. The evidence was presented the effect of current passage on the microstructure and morphology of the LSM electrode in solid oxide fuel cells. Such a structural change induced by the polarization on electrodes is dependent on individual electrodes and the conditions of current passage treatment. The current were passed at 800℃ for 3hr, short treatments, the original plate-like particles were changed to small sphereshaped particles and various structures. Generally, the improvement in the microstructure and morphology of the electrodes were most likely related to the migration of manganese ions of electrodes generated under the current passage. However, The current were passed at 800℃ for 100hr, long treatment, make a cell performance were declined.