Tubular Solid Oxide Fuel Cells Fabricated by Tape-Casting and Dip-Coating Methods

2019 ◽  
Vol 91 (1) ◽  
pp. 329-337 ◽  
Author(s):  
Nader Hedayat ◽  
Yanhai Du
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Tape Casting ◽  
Dip Coating ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Coating Methods

Transient Performance of Micro-Tubular Solid Oxide Fuel Cells

2011 ◽  
Vol 8 (3) ◽  
Author(s):  
Katie S. Howe ◽  
Kevin Kendall
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Dip Coating ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Transient Performance ◽  
Voltage Step ◽  
Current Voltage ◽  
Coating Methods ◽  
The Difference

The transient performance of microtubular solid oxide fuel cells was investigated, with promising results. It was found that a single cell can take less than half a second to adjust to load changes, even when the change steps across the majority of the cell’s range. In addition, no undershooting of the voltage step was seen in these tests. When steps of equal size were ranged across the current-voltage spectrum, more distortion was seen at the higher voltages. Cells with cathodes applied by dip-coating (instead of brush-painting) were then dynamically tested in a similar way. Their transient performance was significantly weaker, with visible undershooting and longer re-adjustment times of 10–15 s. This is thought to be due to the difference in the microstructure of the cathode layers made by the different coating methods.

Al2O3 toughening ScSZ electrolyte fabricated by water-based tape casting technique for solid oxide fuel cells

2021 ◽  
pp. 1-17
Author(s):  
Haoran Wang ◽  
Ze Lei ◽  
Han Zhang ◽  
Yongkang Li ◽  
Junmeng Jing ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Bending Strength ◽  
Tape Casting ◽  
Solid Oxide ◽  
Electrical Performance ◽  
Oxide Fuel ◽  
Casting Technique ◽  
Electrolyte Film ◽  
Water Based

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).

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

2016 ◽  
Vol 41 (40) ◽  
pp. 18203-18206 ◽  
Author(s):  
Juan Zhou ◽  
Qinglin Liu ◽  
Lan Zhang ◽  
Siew Hwa Chan
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Tape Casting ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Large Area

Dip-coating and co-sintering technologies for fabricating tubular solid oxide fuel cells

2008 ◽  
Vol 13 (12) ◽  
pp. 1905-1911 ◽  
Author(s):  
R. Z. Liu ◽  
S. R. Wang ◽  
Bo Huang ◽  
C. H. Zhao ◽  
J. L. Li ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Dip Coating ◽  
Solid Oxide ◽  
Oxide Fuel

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

2014 ◽  
Vol 5 (3) ◽  
pp. 273-278 ◽  
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

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

2018 ◽  
Vol 783 ◽  
pp. 79-87 ◽  
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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