Effect of an Anode Functional Layer on Cell Performance of Anode-Supported Solid Oxide Fuel Cells by a Decalcomania Method

Title
Effect of an Anode Functional Layer on Cell Performance of Anode-Supported Solid Oxide Fuel Cells by a Decalcomania Method
Authors
백성현
Keywords
Solid oxide fuel cell Segmented in series Cell-to-cell distance Shunting current Impedance spectroscopy Ohmic resistance
Issue Date
2013
Publisher
KOREAN JOURNAL OF METALS AND MATERIALS
Series/Report no.
KOREAN JOURNAL OF METALS AND MATERIALS; vol.51 no.2 startpage 125 endpage 130
Abstract
Segmented-in-series solid oxide fuel cell (SISeSOFC) is prepared by laminating cell components on all sides of partially stabilized zirconia supports using decalcomania method. Since such support is conductive, it generates shunting current and hence voltage loss occurs. Such loss compromises the benefit achieved by segmenting solid oxide fuel cell in series. Therefore there would be greater merits to study the effect of cell-to-cell distance on the voltage loss. Output characteristics according to the cell distance is reported in this study. Open circuit voltage and maximum output density show higher value in the order of cell distance of 2, 3 and 1 mm. While the shunting current decreases with increasing cell distance, the ohmic resistance, however, increases with increasing cell distance as the interconnector length increases. The impedance analysis shows that the polarization resistance decreases substantially as the cell distance decreases. This study demonstrates that care should be taken for the SISeSOFC as the cell-to-cell distance influences the output characteristics.
URI
http://dx.doi.org/10.1016/j.ijhydene.2014.11.133
http://dspace.inha.ac.kr/handle/10505/33068
ISSN
1738-8228
Appears in Collections:
College of Engineering(공과대학) > Chemical Engineering (화학공학) > Local Access Journal Papers, Reports(화학공학 논문, 보고서)

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