Microstructural factors of electrodes affecting the performance of anode-supported thin film yttria-stabilized zirconia electrolyte (∼1 μm) solid oxide fuel cells

Ho Sung Noh, Heon Lee, Byung Kook Kim, Hae Weon Lee, Jong Ho Lee, Ji Won Son

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

The effects of the microstructural factors of electrodes, such as the porosity and pore size of anode supports and the thickness of cathodes, on the performance of an anode-supported thin film solid oxide fuel cell (TF-SOFC) are investigated. The performance of the TF-SOFC with a 1 μm-thick yttria-stabilized zirconia (YSZ) electrolyte is significantly improved by employing anode supports with increased porosity and pore size. The maximum power density of the TF-SOFCs increases from 370 mW cm-2 to 624 mW cm-2 and then to over 900 mW cm-2 at 600 °C with increasing gas transport at the anode support. Thicker cathodes also improve cell performance by increasing the active reaction sites. The maximum power density of the cell increases from 624 mW cm-2 to over 830 mW cm -2 at 600 °C by changing the thickness of the lanthanum strontium cobaltite (LSC) cathode from 1 to 2-3 μm.

Original languageEnglish
Pages (from-to)7169-7174
Number of pages6
JournalJournal of Power Sources
Volume196
Issue number17
DOIs
Publication statusPublished - 2011 Sep 1

Keywords

  • Anode support
  • Cathode thickness
  • Pulsed laser deposition
  • Thin film electrolyte solid oxide fuel cell
  • Yttria-stabilized zirconia

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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