二酸化炭素の赤外線吸収特性を応用した固体酸化物燃料電池表層部欠陥の可視化

抄録

As environmentally friendly energy generation methods become a global issue, solid oxide fuel cell / electrolyzer cells (SOFC/EC) are attracting as a hydrogen-based circulating energy generation system. Although these devices are targeted to have a lifetime of 15 years or more, degradation due to various factors has been observed. In particular, pinholes generated in the electrolyte during manufacturing allow air and fuel to pass through and react without going through the battery, causing cell performance to deteriorate. In this study, we propose an inspection method that applies the infrared absorption properties of carbon dioxide for the purpose of quickly and accurately detecting defects that cause gas leaks. The principle, method, and experimental results of this test method will be presented.