Electrophretic Deposition of LDC/LSGM/LDC Tri-layers on NiO-YSZ for Anode-supported SOFC

  • T. Suzuki Harue
    Department of Energy Science and Nuclear Engineering, Tokyo City University Nano Ceramics Center, National Institute for Materials Science
  • Uchikoshi Tetsuo
    Nano Ceramics Center, National Institute for Materials Science
  • Kobayashi Kiyoshi
    Fuel Cell Materials Center, National Institute for Materials Science
  • S. Suzuki Tohru
    Nano Ceramics Center, National Institute for Materials Science
  • Sugiyama Tatsuo
    Department of Energy Science and Nuclear Engineering, Tokyo City University
  • Furuya Kenji
    Department of Energy Science and Nuclear Engineering, Tokyo City University
  • Matsuda Motohide
    Graduate School of Science and Technology, Kumamoto University
  • Sakka Yoshio
    Nano Ceramics Center, National Institute for Materials Science
  • Munakata Fumio
    Department of Energy Science and Nuclear Engineering, Tokyo City University

Bibliographic Information

Other Title
  • Electrophoretic deposition of GDC/LSGM/GDC tri-layers on NiO-YSZ for anode-supported SOFC

Abstract

The SOFC cell composed of an LSGM solid electrolyte and LDC buffer layers was fabricated. The formation of the LDC/LSGM/LDC tri-layer on the NiO-YSZ substrate was performed by a sequential electrophoretic deposition (EPD) technique. The performance of the cells was evaluated at temperatures between 500 and 800 ℃ using H2 and air as the fuel and oxidant, respectively. The cell's open circuit voltage (OCV) of about 0.8V is lower than 1.1V which is the theoretical OCV of the LSGM electrolyte. This suggests that the dense LDC layer may work as the electrolyte in place of the LSGM. It is considered that the microstructure of the LDC buffer layer should be controlled to improve the cell performance.

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