0
Research Papers

Fabrication of Anode-Supported Tubular Solid Oxide Fuel Cell Using an Extrusion and Vacuum Infiltration Techniques

[+] Author and Article Information
Jung-Hoon Song1

Department of Metallurgical and Materials Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, CO 80401

Nigel M. Sammes

Department of Metallurgical and Materials Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, CO 80401

1

Present address: Research Institute of Industrial Science and Technology (RIST), 32 Hyoja-Dong, Nam-Gu, Pohang City, 790-330, Gyeong Buk, South Korea.

J. Fuel Cell Sci. Technol 7(6), 061013 (Aug 25, 2010) (5 pages) doi:10.1115/1.4001324 History: Received September 16, 2009; Revised December 15, 2009; Published August 25, 2010; Online August 25, 2010

A simple and mass productive extrusion technique was applied to fabricate anode-supported tubular solid oxide fuel cells (SOFCs). A standard NiO/8YSZ (nickel oxide/8 mol % yttria stabilized zirconia) cermet anode, 8YSZ electrolyte, and lanthanum strontium manganite (La0.8Sr0.2MnO3) cathode were used as the material components. Secondary electron microscopy images indicated that vacuum infiltration method successfully generated the thin electrolyte layer (about 15μm) with a structurally effective three phase boundaries. Fabricated unit cell showed the open circuit voltage of 1.12 V without any fuel leaking problems. Electrochemical tests showed a maximum power density up to 0.30Wcm2 at 800°C, implying the good performance as tubular SOFCs. This study verified that the extrusion aided by vacuum infiltration process could be a promising technique for mass production of tubular SOFCs.

FIGURES IN THIS ARTICLE
<>
Copyright © 2010 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Single cell fabrication process

Grahic Jump Location
Figure 2

Unit cell configuration: (a) unit cell with current collector, (b) cross section of the single cell, and (c) anode current collector

Grahic Jump Location
Figure 3

Various kinds of fabricated cells: (a) fired anode tube, (b) anode-supported electrolyte, (c) single cell, (d) single cell with current collector, and (e) the final cell after operation

Grahic Jump Location
Figure 4

SEM image of fabricated single cell: (a) cross section of the fabricated unit cell, (b) surface of electrolyte, (c) anode layer contacted on electrolyte layer, and (d) cathode layer contacted on electrolyte layer

Grahic Jump Location
Figure 5

Structure formation mechanism of infiltration method

Grahic Jump Location
Figure 6

OCV variation after reduction process

Grahic Jump Location
Figure 7

(a) V-I characteristics for the fabricated unit cell and (b) the relations between fuel utilization (%) and cell voltage

Grahic Jump Location
Figure 8

Impedance spectra for the fabricated unit cell

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In