Tape casting coupled with isostatic pressing as an alternative fabrication method for microtubular solid oxide fuel cells


Altan T., Timurkutluk C., Timurkutluk B., Celik S.

International Journal of Hydrogen Energy, vol.47, no.16, pp.9735-9743, 2022 (Peer-Reviewed Journal) identifier

  • Publication Type: Article / Article
  • Volume: 47 Issue: 16
  • Publication Date: 2022
  • Doi Number: 10.1016/j.ijhydene.2022.01.053
  • Journal Name: International Journal of Hydrogen Energy
  • Journal Indexes: Science Citation Index Expanded, Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chemical Abstracts Core, Communication Abstracts, Environment Index, INSPEC
  • Page Numbers: pp.9735-9743
  • Keywords: Cell fabrication, Isostatic pressing, Microtubular, Solid oxide fuel cell, Tape casting

Abstract

© 2022 Hydrogen Energy Publications LLCA new production technique consisting mainly of a combination of tape casting and isostatic pressing to fabricate microtubular supports for solid oxide fuel cells is presented in this study. For this purpose, thin anode support layer is obtained by tape casting. The tape is then wrapped around a rod and subjected to isostatic pressing. The anode support microtube laminate is sintered after the removal of the rod. Microstructural observations show that the anode support with the suggested method is free of delamination and structural defect. Similar microtubular supports are also fabricated by conventional extrusion to compare the mechanical performance. Three point bending test results indicate that the anode supports with the suggested method provide higher mechanical strength due to improved compaction by isostatic pressing. Furthermore, similar microtubular cells are constructed on both anode supports for the electrochemical considerations. The results reveal that the cell, whose anode support is manufactured via tape casting and isostatic pressing, provides a reasonable electrochemical performance although no optimization is carried out in the fabrication steps. Therefore, the method recommended in this study is found to be an appropriate method for the fabrication of tubular/microtubular supports in solid oxide fuel cells or in similar areas.