Fabrication and operating characteristics of a flat tubular segmented-in-series solid oxide fuel cell unit bundle
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- Fabrication and operating characteristics of a flat tubular segmented-in-series solid oxide fuel cell unit bundle
- Kim, Dae-Wi; Yun, Ui-Jin; Lee, Jong-Won; Lim, Tak-Hyoung; Lee, Seung-Bok; Park, Seok-Joo; Song, Rak-Hyun; Kim, Guntae
- Ceramic support; Flat tubular cell; Interconnect; Segmented-in-series (SIS)-SOFC; Unit bundle
- Issue Date
- PERGAMON-ELSEVIER SCIENCE LTD
- ENERGY, v.72, no., pp.215 - 221
- A unit bundle of a flat tubular segmented-in-series (SIS)-solid oxide fuel cell (SOFC) for intermediate temperature (650-800 °C) operation was fabricated and operated in this study. We fabricated flat tubular ceramic supports through an extrusion process and analyzed the basic properties of the flat tubular ceramic support: the visible microstructure, porosity, mechanical strength, and pore size distribution. After that, we manufactured a flat tubular SIS-SOFC single cell using screen printing and a vacuum slurry dip-coating method for the electrode/interconnect and electrolyte. In addition, to make a unit bundle for a flat tubular SIS-SOFC, five SIS-SOFC single cells with an effective electrode area of 0.8 cm2 were coated onto the surface of the prepared ceramic support and were connected in series using an Ag + glass interconnect between each single SIS-SOFC cell. The performance of the 5-cell unit bundle for a flat tubular SIS-SOFC in 3% humidified H2 and air at 800 °C had a maximum power of 2.5 W.
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