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研究论文

共压共烧结法制备固体氧化物燃料电池及其结构性能分析

  • 杨乃涛
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  • 山东理工大学化工学院,山东理工大学化工学院,山东理工大学化工学院,山东理工大学化工学院 山东淄博255000石油大学(北京)化工学院,北京102249 ,山东淄博255000 ,山东淄博255000 ,山东淄博255000

收稿日期: 2004-08-28

  修回日期: 2004-08-28

  网络出版日期: 2004-08-28

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

  • YANG Nai-tao~
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  • (*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

Received date: 2004-08-28

  Revised date: 2004-08-28

  Online published: 2004-08-28

摘要

用共压 共烧结法制备以Ce0.8Gd0.2O1.9(CGO)作电解质的中温固体氧化物燃料电池,其中CGO和阴极材料La0.6Sr0.4Co0.2Fe0.8O3-α(LSCF)由溶胶凝胶法合成.实验表明,,由共压 共烧结法制备的上述材料组装的电池具有致密的电解质层,且与电极的结合非常紧密,测得的最大输出功率0.14W/cm2,相应的操作温度为650℃,电流密度为307mA/cm2.该电池的电化学过程为内阻和浓差极化联合控制,使用造孔剂可改善阳极基底的孔隙结构,降低浓差极化过电位.

本文引用格式

杨乃涛 . 共压共烧结法制备固体氧化物燃料电池及其结构性能分析[J]. 电化学, 2004 , 10(3) : 340 -345 . DOI: 10.61558/2993-074X.1585

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.

参考文献

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