Preparation of half-cell by bi-layer wet powder spraying and tape casting for anode-supported SOFCs

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• 作者：Lei Zhang ; Ming Li ; Xiao Song ; Ting Guo ; Sikun Zhu ; Weijie Ji ; Haiqian Wang
• 关键词：Anode-supported solid oxide fuel cell ; Bi-layer wet powder spraying ; Tape casting ; Co-sintering
• 刊名：Journal of Alloys and Compounds
• 出版年：15 February, 2014
• 年：2014
• 卷：586
• 期：Complete
• 页码：10-15
• 全文大小：2141 K

文摘

In the present work, we report an integrated technique of bi-layer wet powder spraying (WPS) and tape casting to fabricate large area half-cell, which is critical for anode-supported solid oxide fuel cells. The electrolyte and anode functional layer were prepared by bi-layer WPS and the anode supporting layer was prepared by tape casting. Only one co-sintering step was needed to prepare the three-layer half-cell. A gas-tight YSZ membrane was achieved after the half-cell was co-sintered at 1250 掳C. The single cell based on the half-cell co-sintered at 1350 掳C showed the maximum power density of 0.46 W cm^鈭? at 750 掳C. This result illustrates that the integrated method of bi-layer WPS and tape casting for half-cell fabrication has a high potential for scaling up from laboratory to industrial size.