Technical Brief

Fabrication and Performance Investigation of Three-Cell SOFC Stack Based on Anode-Supported Cells With Magnetron Sputtered Electrolyte

[+] Author and Article Information
Andrey Solovyev

Weinberg Scientific and Educational Center,
Tomsk Polytechnic University,
Tomsk 634050, Russia;
Laboratory of Applied Electronics,
Institute of High Current Electronics,
Tomsk 634055, Russia
e-mail: andrewsol@mail.ru

Igor Ionov

Scientific and Educational Laboratory
of Heat and Mass Transfer Problems
in Plasma Processes and Hydrogen Fuel Cells,
Tomsk Polytechnic University,
Tomsk 634050, Russia;
Laboratory of Applied Electronics,
Institute of High Current Electronics,
Tomsk 634055, Russia

Alexander Lauk, Stepan Linnik, Egor Smolyanskiy

Research and Production Laboratory of Pulse-beam,
Electric Discharge and Plasma Technologies,
Tomsk Polytechnic University,
Tomsk 634050, Russia

Anna Shipilova

Laboratory of Applied Electronics,
Institute of High Current Electronics,
Tomsk 634055, Russia

Manuscript received January 16, 2018; final manuscript received March 15, 2018; published online April 12, 2018. Assoc. Editor: Kevin Huang.

J. Electrochem. En. Conv. Stor. 15(4), 044501 (Apr 12, 2018) (4 pages) Paper No: JEECS-18-1006; doi: 10.1115/1.4039705 History: Received January 16, 2018; Revised March 15, 2018

A planar solid oxide fuel cell (SOFC) was fabricated using a commercial Ni/yttria-stabilized zirconia (YSZ) anode support, an YSZ/gadolinium-doped ceria (GDC) thin-film electrolyte, and a composite cathode of La0.6Sr0.4Co0.2Fe0.8O3/Gd0.1Ce0.9O1.95 (LSCF/GDC). A small, three-cell, SOFC stack is assembled using 10 cm × 10 cm single cells, metallic interconnects, and glass-based sealing. The stack performance was examined at various fuel flow rates of H2 + N2 and air at a fixed temperature of 750 °C. The three-cell stack with a crossflow design produced peak power density of 0.216 W/cm2 or about 39 W total power at 750 °C.

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Grahic Jump Location
Fig. 1

Scheme of the electrolyte deposition process

Grahic Jump Location
Fig. 2

Photograph of the NiO + 8YSZ/8YSZ/GDC/LSCF + GDC anode-supported single cell (a) and three-cell stack (b)

Grahic Jump Location
Fig. 3

Current–voltage (IV) and current–power (IP) curves of the NiO + YSZ/YSZ/GDC/LSCF + GDC anode-supported single cell tested at the 750 °C

Grahic Jump Location
Fig. 4

Current–voltage (IV) and current–power (IP) curves ofthe three-cell stack tested at the 750 °C: (1) H2-1.5 l/min, N2-1.5 l/min, air-5 l/min; (2) H2-3 l/min, N2-3 l/min, air-13 l/min; and (3) H2-4.2 l/min, N2-4.2 l/min, air-20 l/min

Grahic Jump Location
Fig. 5

Photograph (a) and the cross-sectional SEM image (b) of the 10 cm × 10 cm cell after test



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