Electrophoretic deposition for fabrication of YSZ electrolyte film on non-conducting porous NiO-YSZ composite substrate for intermediate temperature SOFC

Takushi Hosomi, Motohide Matsuda, Michihiro Miyake

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

Electrophoretic deposition (EPD) of YSZ electrolyte films onto porous NiO-YSZ composite substrates that had been pre-coated with graphite thin layers was carried out in the following two means for solid oxide fuel cell application: one was EPD based on electrophoretic filtration by which YSZ films were formed on the reverse sides without the graphite layers; the other was EPD on a graphite thin layer pre-coated on the substrates. Dense YSZ electrolyte thin films were successfully obtained in both means, although it was difficult to form YSZ films that were strongly adherent to the substrates using the latter means. The densification of YSZ films was assisted by shrinkage of the substrates during co-firing. A single cell was constructed on ca. 5 μm thick dense YSZ films fabricated using the EPD based on electrophoretic filtration. Maximum power densities over 0.06, 0.35, 1.10 and 2.01 W/cm2 were attained, respectively, at 500, 600, 700 and 800 °C on the cell.

Original languageEnglish
Pages (from-to)173-178
Number of pages6
JournalJournal of the European Ceramic Society
Volume27
Issue number1
DOIs
Publication statusPublished - Jan 1 2007

Keywords

  • Electrical properties
  • Electrolyte film
  • Electrophoretic deposition (EPD)
  • SOFC
  • YSZ

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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