Ag current collector for honeycomb solid oxide fuel cells using LaGaO3-based oxide electrolyte

Hao Zhong, Hiroshige Matsumoto, Tatsumi Ishihara, Akira Toriyama

    研究成果: ジャーナルへの寄稿学術誌査読

    25 被引用数 (Scopus)

    抄録

    Honeycomb type solid oxide fuel cell (SOFC) using a Ag mesh as a current collector and La0.9Sr0.1Ga0.8Mg0.2O3 (LSGM) as an electrolyte was studied for reducing production cost. When an Ag mesh was used as a current collector, the power density of the cell became lower than that of a cell using a Pt mesh due to the relatively worse contact caused by the lower calcination temperature, particularly in the case of the anode. The preparation method and the electrode structure were investigated for the purpose of increasing the power density of the cell using the Ag current collector. It was found that an interlayer of Ni-Sm0.2Ce0.8O1.9 (1:9) between the NiFe-LSGM cermet anode and the LSGM electrolyte was effective for decreasing the pre-calcination temperature for anode fabrication. Much higher power densities of 300 mW cm-2 and 140 mW cm-2 at 1073 K and 973 K, respectively, were achieved by inserting an interlayer. These results for the power density of the cell using the Ag mesh current collector after the optimization of the electrode structure and the preparation procedure are close to those of the cell using the Pt mesh current collector cell presented in our previous work.

    本文言語英語
    ページ(範囲)238-243
    ページ数6
    ジャーナルJournal of Power Sources
    186
    2
    DOI
    出版ステータス出版済み - 1月 15 2009

    !!!All Science Journal Classification (ASJC) codes

    • 再生可能エネルギー、持続可能性、環境
    • エネルギー工学および電力技術
    • 物理化学および理論化学
    • 電子工学および電気工学

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