Abstract
An intermediate temperature solid oxide fuel cell (IT-SOFC) was fabricated by co-copressing-sintering methods, and the electrolyte of Ce_(0.8)Gd_(0.2)O_(1.9) (CGO) and cathode materials of La_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3-α) (LSCF) were prepared by sol-gel method. The effect of preparation methods on the microstructure of the prepared fuel cells was analyzed by SEM . It shows that the cells prepared by the co-pressing/co-sintering method possess a dense electrolyte layer and a compact interface between electrolyte and anode but a curved configuration, while those prepared by the colloidal technique have a flat configuration but the electrolyte layer is not dense enough. The maximum output power density of the cell prepared by co-pressing/co-sintering method attains up to 0.14 W/cm~(2) at 650 ℃ with the corresponding electrical current density of 307 mA/cm~(2). The electrically chemical process of the cell operation is controlled by both the internal ohmic resistance and the concentration polarization.
Keywords
Solid oxide fuel cell, CeO_(2) Co-repressing, Co-sintering
Publication Date
2004-08-28
Online Available Date
2004-08-28
Revised Date
2004-08-28
Received Date
2004-08-28
Recommended Citation
Nai-tao YANG.
Fabrication of Solid Oxide Fuel Cells and Analysis of Their Structure and Performance[J]. Journal of Electrochemistry,
2004
,
10(3): 340-345.
DOI: 10.61558/2993-074X.1585
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol10/iss3/15
Included in
Catalysis and Reaction Engineering Commons, Engineering Science and Materials Commons, Materials Chemistry Commons, Materials Science and Engineering Commons, Physical Chemistry Commons, Power and Energy Commons
