Fabrication of TPB microstructure of SOFC by using 3D printers

Research Project

Project/Area Number	16K14177
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Multi-year Fund
Research Field	Thermal engineering
Research Institution	Waseda University
Principal Investigator	Yoshida Makoto 早稲田大学, 理工学術院, 教授 (80277847)
Co-Investigator(Kenkyū-buntansha)	中垣隆雄早稲田大学, 理工学術院, 教授 (30454127) 梅津信二郎早稲田大学, 理工学術院, 准教授 (70373032)
Research Collaborator	OKANE Toshimitsu 産業技術総合研究所
Project Period (FY)	2016-04-01 – 2017-03-31
Project Status	Completed (Fiscal Year 2016)
Budget Amount *help	¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000) Fiscal Year 2016: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Keywords	高分散 / 粘性係数 / 溶媒 / インクジェット / 高濃度 / サテライト / 分散剤 / 燃料電池 / ３Dプリンター
Outline of Final Research Achievements	This research aims to fabricate the three-dimensional microstructure of triple phase boundary in solid oxide fuel cells, in which each network is ideally connected, by using 3D printers. Three kinds of ink slurry, which are electrolyte, electrode and filler to form the pore network after sublimation, are developed to ensure proper jet of each slurry and fast fabrication of microstructure. In order to optimize concentration, dispersion and viscosity, main solutes, solvents and dispersants are mixed and orchestrated in various blend ratios. Eventually, we succeeded in fabricating the around 25 micrometers microstructure of multi-layered triple phase boundary with completely connected three networks.