Fabrication of Solid Oxide Fuel Cells and Analysis of Their Structure and Performance

Authors

Nai-tao YANG, *1,2), MENG Bo~(1), YU Ru-jun~(1), TAN Xiao-yao~(1) (1.College of Chemical Engineering, Shandong University of Technology, Zibo 255000,China, 2.College of Chemical engineering, Petrol University, Beijing 102249,China;

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

DOI Link

https://doi.org/10.61558/2993-074X.1585

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

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