Current Collect Properties in Micro Tubular Solid Oxide Fuel Cell (2) (Investigation of Cathode Current Collecting Method)

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  • 円筒型マイクロ固体酸化物形燃料電池の集電特性の研究（2）カソード集電方法の検討
  • エントウケイ マイクロ コタイ サン カブツケイ ネンリョウ デンチ ノ シュウデン トクセイ ノ ケンキュウ 2 カソード シュウデン ホウホウ ノ ケントウ

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Abstract

Current collecting property in micro tubular solid oxide fuel cell (SOFC) was evaluated by using electrochemical impedance spectroscopy. A micro tubular cell was composed of NiO/(ZrO2)0.9(Y2O3)0.1 anode-substrate, (Ce0.6La0.4)O1.8 and La0.8Sr0.2Ga0.8Mg0.2O2.8 double layer electrolyte, and La0.6Sr0.4Co0.2Fe0.8O3 cathode. The effects of different current collecting types, i.e., short-current path or long-current path were discussed. These results were simulated to the equivalent circuit consisting of four resistances and three capacitances, and accuracy of these estimated values were investigated in nonlinear least square techniques. As the results, short-current path type showed high performance and ohmic resistance was dependent of current collect types.

Journal

  • Electrochemistry

    Electrochemistry 78 (8), 671-677, 2010

    The Electrochemical Society of Japan

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