Search for new SOFC cathode materials for layered oxides

2019 Fiscal Year Final Research Report

• Project/Area Number: 16K06781
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Structural/Functional materials
• Research Institution: Tokyo Metropolitan College of Industrial Technology
• Principal Investigator: Kenichi Yoshida 東京都立産業技術高等専門学校, ものづくり工学科, 准教授 (60252201)
• Project Period (FY): 2016-04-01 – 2020-03-31
• Keywords: 固体酸化物燃料電池 / 空気極 / 層状酸化物 / 新物質探索 / 材料開発

Outline of Final Research Achievements

In this research, we worked on material development with the aim of improving the characteristics of Slid Oxide Fuel Cells. Therefore, we first worked on the material development to synthesize the fuel electrode/electrolyte substrate inexpensively using the existing materials. As a result, we first succeeded in developing a 10 cm square fuel electrode substrate. Next, we succeeded in developing a coin cell substrate with an outer diameter of 21 mm, in which the fuel electrode and the electrolyte were integrated. We tried to develop cathode material using these substrates, but unfortunately we could not find a new material that exceeds existing substances. In the future, we plan to work on the search for new substances for cathode materials using the developed substrate.

Free Research Field

固体物理学　材料工学

Academic Significance and Societal Importance of the Research Achievements

固体酸化物燃料電池は、発電効率が理論上80％に達する、最もエネルギー効率の高い、
クリーンな発電システムである。しかしながら、動作温度が700℃以上と高温なため、普及は進んでいない。固体酸化物燃料電池の低温動作を実現するためには、既存物質の特性を上回る、新しい空気極材料の開発が求められている。本研究で得られた、燃料極・電解質の一体型基板を安価に製造する材料開発の成果により、今後も更なる研究成果が期待できる。