A study of short stack with large area solid oxide fuel cells by aqueous tape casting

Abstract A water-based tape casting slurry is reported to prepare the ceria and scandia co-doped zirconia (ScSZ) electrolyte films. The slurry is characterized and optimized through Zeta potential and rheological property measurements. Smooth and flat ScSZ electrolyte films are obtained by improving the sintering process. The microstructure, electrical performance, and mechanical property of ScSZ with adding different contents of Al2O3 are also investigated. The results show that a proper amount of Al2O3 has a beneficial effect on the densification of ScSZ. Significant decrease at the grain boundary resistance of ScSZ is observed by Al2O3 addition. The bending strength of the sample with 0.5 wt.% Al2O3 (ScSZ-0.5A) is about 400 MPa, which is 20% higher than pure ScSZ. The ScSZ-0.5A electrolyte film fabricated by water-based tape casting method shows appropriate electrical conductivity and high mechanical strength, which is promising for the practical application in solid oxide fuel cells (SOFCs).

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Manufacturing of Solid Oxide Fuel Cells by Aqueous Tape Casting

Proceedings of the 10th International Conference on Multi-Material Micro Manufacture ◽

10.3850/978-981-07-7247-5-370 ◽

2013 ◽

Author(s):

J. Stiernstedt ◽

E. Carlström ◽

B.-E. Mellander

Keyword(s):

Fuel Cells ◽

Solid Oxide Fuel Cells ◽

Tape Casting ◽

Solid Oxide ◽

Oxide Fuel

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Understanding longitudinal degradation mechanisms of large-area micro-tubular solid oxide fuel cells

Electrochimica Acta ◽

10.1016/j.electacta.2018.01.184 ◽

2018 ◽

Vol 265 ◽

pp. 232-243 ◽

Cited By ~ 2

Author(s):

Aneta Slodczyk ◽

Marc Torrell ◽

Aitor Hornés ◽

Alex Morata ◽

Kevin Kendall ◽

...

Keyword(s):

Fuel Cells ◽

Solid Oxide Fuel Cells ◽

Solid Oxide ◽

Oxide Fuel ◽

Degradation Mechanisms ◽

Large Area

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Fabrication of the Large Area Thin-Film Solid Oxide Fuel Cells with Anodized Aluminum Oxide

ECS Meeting Abstracts ◽

10.1149/ma2016-02/39/2913 ◽

2016 ◽

Keyword(s):

Thin Film ◽

Fuel Cells ◽

Aluminum Oxide ◽

Solid Oxide Fuel Cells ◽

Solid Oxide ◽

Oxide Fuel ◽

Large Area ◽

Anodized Aluminum ◽

Anodized Aluminum Oxide

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Fabrication and Characterization of Graded Anodes for Anode-Supported Solid Oxide Fuel Cells by Tape Casting and Lamination

Electrocatalysis ◽

10.1007/s12678-014-0193-2 ◽

2014 ◽

Vol 5 (3) ◽

pp. 273-278 ◽

Cited By ~ 5

Author(s):

J. F. Beltran-Lopez ◽

M. A. Laguna-Bercero ◽

J. Gurauskis ◽

J. I. Peña

Keyword(s):

Fuel Cells ◽

Solid Oxide Fuel Cells ◽

Tape Casting ◽

Solid Oxide ◽

Oxide Fuel ◽

Fabrication And Characterization

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Fabrication and electrochemical performance of thin-film solid oxide fuel cells with large area nanostructured membranes

Journal of Power Sources ◽

10.1016/j.jpowsour.2009.08.066 ◽

2010 ◽

Vol 195 (4) ◽

pp. 1149-1155 ◽

Cited By ~ 26

Author(s):

Alex C. Johnson ◽

Antonio Baclig ◽

Daniel V. Harburg ◽

Bo-Kuai Lai ◽

Shriram Ramanathan

Keyword(s):

Thin Film ◽

Fuel Cells ◽

Electrochemical Performance ◽

Solid Oxide Fuel Cells ◽

Solid Oxide ◽

Oxide Fuel ◽

Large Area ◽

Nanostructured Membranes

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Fabrication of the Anode Supported Solid Oxide Fuel Cells by Tape-Casting Process and Infiltration Method

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.783.79 ◽

2018 ◽

Vol 783 ◽

pp. 79-87 ◽

Cited By ~ 1

Author(s):

Young Jin Kwon ◽

Young Bae Han

Keyword(s):

Fuel Cells ◽

Carbon Black ◽

Electrochemical Performance ◽

Solid Oxide Fuel Cells ◽

Glassy Carbon ◽

Tape Casting ◽

Casting Process ◽

Solid Oxide ◽

Oxide Fuel ◽

Infiltration Method

The hydrogen is promising energy carrier due to its high energy density, convenient transportation, eternal sources in the earth and cleanness. Solid oxide fuel cells (SOFCs) have not been commercialized yet even though it has been studied for decades. The issues about solid oxide fuel cells are manufacturing process and electrochemical performance. Tape-casting process has an advantage of cost reduction for mass production. it is reported that infiltration improves electrochemical performance of SOFCs by enhancing the three phase boundary (TPB) and porosity. To fabricate the electrode with porous scaffold structure for infiltration, pore formers were added in the tape-casting slurry. In this study, four types of mixtures of several pore formers such as carbon black, graphite, poly methyl methacrylate and glassy carbon were estimated. Micro structure of each type is investigated through scanning electron microscope (SEM). The thickness of the unit cell manufactured by tape-casting is in the range of 200 - 250 μm. The fabricated unit cell with carbon black and glassy carbon shows the open circuit voltage 1.07 V at 800°C. As a result of the study, mixed ratio of pore formers was researched for Solid Oxide Fuel Cells manufacturing process applied by tape-casting and infiltration method.

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