Single SOFC with Supporting Ni-YSZ Anode, Bilayer YSZ/GDC Film Electrolyte, and La2NiO4 + δ Cathode

A. N. Koval’chuk, A. V. Kuz’min, D. A. Osinkin, A. S. Farlenkov, A. A. Solov’ev, A. V. Shipilova, I. V. Ionov, N. M. Bogdanovich, S. M. Beresnev

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Characteristics of fuel cells with supporting Ni-YSZ anode, bilayer YSZ/GDC electrolyte with the thickness of 10 μm, and La2NiO4 + δ cathode are studied. It is shown that when humid (3% water) hydrogen is supplied to the anode and air is supplied to the cathode, the maximum values of cell’s power density are 1.05 and 0.75 W/cm2 at 900 and 800°С, respectively. After the introduction of praseodymium oxide and ceria into the cathode and the anode, respectively, the power density is ca. 1 W/cm2 at 700°С. It is found that the power density of a cell with impregnated electrodes weakly increases with the increase in temperature to ca. 1.4 W/cm2 at 900°С. The analysis of impedance spectra by the distribution of relaxation times shows that such behavior is associated with the gas-diffusion resistance of the SOFC anode. The latter is explained by the low porosity of the anode and the high rate of fuel consumption.

Original languageEnglish
Pages (from-to)541-546
Number of pages6
JournalRussian Journal of Electrochemistry
Volume54
Issue number6
DOIs
Publication statusPublished - 1 Jun 2018

Keywords

  • bilayer YSZ/GDC electrolyte
  • DRT
  • LaNiO
  • magnetron sputtering
  • Ni-YSZ
  • solid-oxide fuel cell (SOFC)

ASJC Scopus subject areas

  • Electrochemistry

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