PERFORMANCE BEHAVIOR FOR SOLID OXIDE ELECTROLYSIS CELLS

摘要

The performance behavior of solid oxide electrolysis cell (SOEC) was investigated. Initial performance of the cell as solid oxide fuel cell (SOFC) mode at 800℃ was measured as 0.15 W/cm~2. The SOEC showed the stable performance during 5 hours operation at -0.15A/cm~2. The power for electrolysis was increased during the first 30 minutes operation due to the increase of internal resistance of the cell. After 5 hours operation, the degradation rate of SOEC performance was about 3% due to redox reaction of hydrogen electrode.