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Ink‐Jet Printing: A Versatile Method for Multilayer Solid Oxide Fuel Cells Fabrication
Author(s) -
Sukeshini Mary. A,
Cummins Ryan,
Reitz Thomas L.,
Miller Ryan M.
Publication year - 2009
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2009.03349.x
Subject(s) - materials science , cathode , yttria stabilized zirconia , electrolyte , anode , fabrication , composite number , screen printing , solid oxide fuel cell , chemical engineering , composite material , nanotechnology , cubic zirconia , electrode , chemistry , ceramic , medicine , alternative medicine , pathology , engineering
The potential of ink‐jet printing for fabrication of components for solid oxide fuel cells has been explored. An anode interlayer, consisting of a composite of NiO and yttria‐stabilized zirconia (YSZ), and an electrolyte layer, YSZ (8 mol%), were ink‐jet printed on a tape cast anode support, 55 wt% NiO–45 wt% YSZ (8 mol%). Scanning electron microscopy of the printed layers sintered at 1400°C revealed a dense electrolyte layer measuring 10–12 μm in thickness. Single cells using these printed layers and strontium‐doped lanthanum manganate (LSM, La 0.8 Sr 0.2 MnO 3 )‐based pasted cathodes were assessed by DC polarization and AC complex impedance methods. The cells exhibited a stable open circuit voltage of 1.1 V around 800°C, in a hydrogen atmosphere. A maximum power density of 500 m·(W·cm) −2 was achieved at 850°C for a typical cell with the electrolyte and anode interlayer cosintered at 1400°C. A composite cathode interlayer, LSM–YSZ, and a cathode current collection layer, LSM, were also ink‐jet printed and incorporated in single cells. However, cells with all components ink‐jet printed showed decreased performance. This pointed to critical issues in the composite cathode microstructure, which is controlled by the composite ink design/formulation and printing parameters that need to be addressed.