Development of Solid Oxide Fuel Cells with Mixed Ion Conductor for High Efficiency Methane Operation

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K18239
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Structural/Functional materials
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: SHIMADA HIROYUKI 国立研究開発法人産業技術総合研究所, 材料・化学領域, 主任研究員 (60738285)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 燃料電池 / SOFC / 両イオン伝導 / プロトン / 高効率 / セラミックス / 電気化学 / メタン

Outline of Final Research Achievements

Mixed proton- and oxide ion conducting SOFCs can theoretically achieve higher voltage and resulting higher efficiency compared with conventional oxide ion-conducting SOFCs because of little or no dilution of fuel at the anode side. This study investigated electrolyte and electrode materials for realizing high efficiency mixed ion conducting SOFCs using methane. As a result, we revealed ionic transport property of Ba(ZrCeYYb)O3 and developed cathodes and anodes for mixed ion conducting SOFCs. An SOFC using developed components showed high open-circuit voltage with high power density. Also, we revealed keys for achieving high efficiency methane operation.

Free Research Field

セラミックス、電気化学、無機材料、エネルギー変換工学、燃料電池、電気分解