Development of improved solid oxide fuel cell electrolyte sheet by microimprinting for layered material
Development of improved solid oxide fuel cell electrolyte sheet by microimprinting for layered material
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DOI：
10.7567/jjap.53.06jk02
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发表时间：
2014-05
影响因子：
1.5
通讯作者：
F. Tsumori;Yūki Tanaka;Yang Xu;Toshiko Osada;H. Miura
中科院分区：
文献类型：
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作者：
F. Tsumori;Yūki Tanaka;Yang Xu;Toshiko Osada;H. Miura
目前，固体氧化物燃料电池(SOFC)是众多燃料电池中发电效率最高的，而且只排放对环境无害的水，因此备受关注。近年来，SOFC的电解液结构被加工成各种形式，以提高SOFC的效率。在这项工作中，我们试图通过改变电解液和电极界面上的细观结构来提高SOFC的性能。这种百微米尺度的介观结构被认为是为了增加界面上的反应。然而，目前还没有一种有效的方法来制备具有沿界面微结构的电池。我们已经提出了微粉印迹(µPI)方法来在陶瓷样品上创建精细图案。在这项研究中，新开发了用于层状材料的µPI方法，以在电解液薄片的两侧制造微图形。研究了复合比、脱脂温度和烧结温度等工艺参数的优化，以获得所需的电解液片两面波纹。
At present, the solid oxide fuel cell (SOFC) is attracting much attention because it possesses the highest power generation efficiency among many types of fuel cell, and SOFC emits only water that does not harm the environment. Recently, the electrolyte structure for SOFC has been processed into various forms to increase the efficiency of SOFC. In this work, we tried to improve the performance of SOFC by changing the mesostructure on the interfaces between the electrolyte and electrodes. This hundred-micrometer-scaled mesostructure has been proposed to increase the reaction on the interfaces. However, there has been no effective method of fabricating the cells with the microstructure along the interfaces. We have already proposed the micro powder imprint (µPI) method to create fine patterns on ceramic samples. In this study, the µPI method for layered material was newly developed to fabricate the micropatterns on both sides of an electrolyte sheet. The optimization of process parameters, such as compounding ratio, debinding temperature, and sintering temperature, was examined to obtain desired wavy patterns on both surfaces of the electrolyte sheet.