Development of solid oxide fuel cells (SOFCs) by tape-casting and single-step co-firing of monolithic laminates

Jae Ha Myung, Hyun Jun Ko, Chang Hyeok Im, Jooho Moon, Sang Hoon Hyun

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We developed a cost-effective method to manufacture high performance-monolithic solid oxide fuel cells using nano-composite electrodes, tape-casting and single-step co-firing. NiO/YSZ-YSZ nano-composite powder comprising nano-sized NiO and YSZ adhered to core YSZ powder was prepared for anode support. LSM/GDC nano-composite cathode fired at 1400 C had a porosity of over 20%, which was much higher than that of conventional LSM-GDC. Furthermore, the area specific resistance of the LSM/GDC cathode was 0.15 Ω cm 2, which was much lower than that of the LSM-GDC and LSM-YSZ mechanically mixed cathodes. Various types of monolithic SOFC unit cells were prepared; one consisting of a NiO-YSZ anode, NiO/YSZ-YSZ anode functional layer, and LSM-GDC cathode had a current density of 0.37 A/cm2 at 0.7 V at 800 C. Optimized monolithic SOFC consisting of NiO/YSZ-YSZ anode and YSZ electrolyte and LSM/GDC cathode had a greatly improved current density of 0.84 A/cm2.

Original languageEnglish
Pages (from-to)2313-2319
Number of pages7
JournalInternational Journal of Hydrogen Energy
Volume39
Issue number5
DOIs
Publication statusPublished - 2014 Feb 4

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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