Processing of high-performance anode-supported planar solid oxide fuel cell
Processing of high-performance anode-supported planar solid oxide fuel cell
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DOI：
10.1016/j.ijhydene.2008.06.073
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发表时间：
2008-10
影响因子：
7.2
通讯作者：
R. Basu;A. Sharma;A. Dutta;J. Mukhopadhyay
中科院分区：
文献类型：
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作者：
R. Basu;A. Sharma;A. Dutta;J. Mukhopadhyay
用廉价、简单的工艺成功地制备了尺寸为5cm×5cm×1.5mm和10 cm × 10 cm ×1.5mm的阳极支撑平板单电池。该方法包括室温层压的几个多孔层的流延NiO-YSZ与致密层的YSZ电解质，然后共烧。优化了半电池的制作工艺，使电解质厚度从40 μm降低到10μm。用丝网印刷的La（Sr）MnO 3（LSM）-YSZ作为阴极活性层和LSM作为集流体层制造的单电池显示出非常高的电化学性能，尽管在制造的电池的阳极侧上没有使用单独的活性层。用阳极侧上的氢气和阴极侧上的氧气测试单电池。在800°C、0.7V电池电压下，直径为16 mm的典型单电池的电流密度和功率密度分别为1.7A/cm ~ 2和1.2W/cm ~ 2。根据电流-电压图评估的面积比电阻（ASR）值在800°C时低至0.205Ω cm 2。发现这些电池的性能几乎与尺寸无关，具有优异的重复性。
Anode-supported planar single cells of dimensions 5cm×5cm×1.5mm and 10cm×10cm×1.5mm have been successfully fabricated using inexpensive and simple processing techniques. The process involves room temperature lamination of several porous layers of tapecast NiO–YSZ together with a dense layer of YSZ electrolyte followed by cofiring. The half-cell fabrication is optimized while the electrolyte thickness is lowered down from 40 to 10μm. The fabricated single cells with screen printed La(Sr)MnO3(LSM)–YSZ as cathode active layer and LSM as current collector layer shows very high electrochemical performance although no separate active layer is used on the anode side of the fabricated cells. The single cells are tested with hydrogen on the anode and oxygen on the cathode sides. The current density and power density of a typical coupon cell of diameter 16mm is found to be ≈1.7A/cm2and ≈1.2W/cm2, respectively, at a cell voltage of 0.7V measured at 800°C. Area specific resistance (ASR) value, evaluated from the current–voltage plot, is as low as 0.205Ωcm2at 800°C. The performances of these cells are found to be almost size independent having excellent repeatability.