Thermal Cycling Evaluation of Rolled Tubular Solid Oxide Fuel Cells

2011 ◽  
Vol 8 (6) ◽  
Author(s):  
Alem Tesfai ◽  
Paul Connor ◽  
Julie Nairn ◽  
John T. S. Irvine
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Thermal Cycling ◽  
Low Cost ◽  
Tape Casting ◽  
Single Step ◽  
Solid Oxide ◽  
Firing Process ◽  
Oxide Fuel ◽  
Heating And Cooling

Rolled tubular solid oxide fuel cells are manufactured in a low-cost single step firing process, so the design offers reduced production cost. All components are produced using a low cost tape casting method and are fired as a single unit. The geometry is self–supporting which removes the need for thick cell components further reducing cell cost and offering increased volumetric power densities. Here we present the results from some early studies on the influence of fast thermal cycling on performance characteristics. Thermal cycles were carried out heating and cooling at 10 °C min−1 between 400 and 800 °C. Less than 1% performance drop was calculated for the single cell and 5% drop was observed on the fourth cycle for the five cell bundle.

Electrochemical Performance of Solid Oxide Fuel Cells Manufactured by Single Step Co-firing Process

2007 ◽  
Vol 154 (4) ◽  
pp. B389 ◽  
Author(s):  
Kyung Joong Yoon ◽  
Wenhua Huang ◽  
Guosheng Ye ◽  
Srikanth Gopalan ◽  
Uday B. Pal ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Electrochemical Performance ◽  
Solid Oxide Fuel Cells ◽  
Single Step ◽  
Solid Oxide ◽  
Firing Process ◽  
Oxide Fuel

Development of solid oxide fuel cells (SOFCs) by tape-casting and single-step co-firing of monolithic laminates

2014 ◽  
Vol 39 (5) ◽  
pp. 2313-2319 ◽  
Author(s):  
Jae-ha Myung ◽  
Hyun Jun Ko ◽  
Chang Hyeok Im ◽  
Jooho Moon ◽  
Sang-Hoon Hyun
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Tape Casting ◽  
Single Step ◽  
Solid Oxide ◽  
Oxide Fuel

Refractory Cathode Investigation for Single-Step Co-Fired Solid Oxide Fuel Cells (SOFCs)

2006 ◽  
Vol 972 ◽  
Author(s):  
Peter A. Zink ◽  
Kyung Joong Yoon ◽  
Wenhua Huang ◽  
Srikanth Gopalan ◽  
Uday B. Pal ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Barrier Layer ◽  
Single Step ◽  
Solid Oxide ◽  
Cathode Layer ◽  
Firing Process ◽  
Full Density ◽  
Oxide Fuel ◽  
Lanthanum Ferrite

AbstractA single step co-firing process for fabricating solid oxide fuel cells (SOFCs) requires refractory electrodes to prevent excessive sintering of the electrode while facilitating full-density sintering of the electrolyte. Single cell current-potential curves and impedance measurements indicate that the majority of the performance losses occur in the cathode and are due to activation polarization. A-site deficient calcium and cerium doped lanthanum ferrite cathode powders were synthesized and investigated as possible refractory cathode materials with low activation polarization losses. Four-probe conductivity measurements indicated that all compositions were suitable as cathodes. However, reactivity with YSZ reduced the conductivity by as much as two orders of magnitude, too low for use as a cathode. These refractory cathode compositions could be effective if a suitable barrier layer is applied to prevent reaction with YSZ. Experiments will investigate the applicability of a doped-ceria barrier layer to prevent reaction between the lanthanum ferrite cathode layer and the YSZ electrolyte layer.

Surface Modification Allows High Performance for Solid Oxide Fuel Cells Fabricated by a Single-step Co-firing Process

Fuel Cells ◽  
2017 ◽  
Vol 17 (6) ◽  
pp. 905-908 ◽  
Author(s):  
H. Dai ◽  
Y. Ning ◽  
S. He ◽  
X. Zhang ◽  
L. Guo ◽  
...  
Keyword(s):  
Surface Modification ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
High Performance ◽  
Single Step ◽  
Solid Oxide ◽  
Firing Process ◽  
Oxide Fuel

Proton-conducting solid oxide fuel cells prepared by a single step co-firing process

2009 ◽  
Vol 191 (2) ◽  
pp. 428-432 ◽  
Author(s):  
Lei Bi ◽  
Zetian Tao ◽  
Wenping Sun ◽  
Shangquan Zhang ◽  
Ranran Peng ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Single Step ◽  
Solid Oxide ◽  
Firing Process ◽  
Oxide Fuel ◽  
Proton Conducting

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

(Invited) Metal-Supported Solid Oxide Fuel Cells and Electrolyzers for Low-Cost, Robust, Rapid-Start Systems

2021 ◽  
Vol MA2021-01 (37) ◽  
pp. 1138-1138
Author(s):  
Mike C Tucker ◽  
Fengyu Shen ◽  
Boxun Hu ◽  
Martha M Welander ◽  
Theis Løye Skafte ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Low Cost ◽  
Solid Oxide ◽  
Oxide Fuel

Achieving Performance and Longevity with Butane-operated Low-temperature Solid Oxide Fuel Cells using Low-Cost Cu and CeO2 Catalysts

2021 ◽  
Author(s):  
Cam-Anh Thieu ◽  
Sungeun Yang ◽  
Ho-Il Ji ◽  
Hyoungchul Kim ◽  
Kyung Joong Yoon ◽  
...  
Keyword(s):  
Thin Film ◽  
Fuel Cells ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
High Efficiency ◽  
Operating Temperature ◽  
Low Cost ◽  
Solid Oxide ◽  
Oxide Fuel

Thin-film solid oxide fuel cells (TF-SOFCs) effectively lower the operating temperature of typical solid oxide fuel cells (SOFCs) below 600 °C, while maintaining high efficiency and using low-cost catalyst. But...

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