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

被引：19

作者：

Koval'chuk, A. N. ^{[1
]}

Kuz'min, A. V. ^{[2
,3
]}

Osinkin, D. A. ^{[2
,3
]}

Farlenkov, A. S. ^{[2
,3
]}

Solov'ev, A. A. ^{[1
,4
]}

Shipilova, A. V. ^{[4
]}

Ionov, I. V. ^{[1
,4
]}

Bogdanovich, N. M. ^{[2
]}

Beresnev, S. M. ^{[2
]}

机构：

[1] Tomsk Polytech Univ, Tomsk 634050, Russia

[2] Russian Acad Sci, Inst High Temp Electrochem, Ural Branch, Ekaterinburg 620137, Russia

[3] Ural Fed Univ, Ekaterinburg 620002, Russia

[4] Russian Acad Sci, Inst High Current Elect, Siberian Branch, Tomsk 634055, Russia

来源：

RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2018年 / 54卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

solid-oxide fuel cell (SOFC); bilayer YSZ/GDC electrolyte; magnetron sputtering; Ni-YSZ; La2NiO4+delta; DRT; OXIDE FUEL-CELLS; RELAXATION-TIMES; REGULARIZATION; CONTACT;

D O I：

10.1134/S1023193518060101

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Characteristics of fuel cells with supporting Ni-YSZ anode, bilayer YSZ/GDC electrolyte with the thickness of 10 mu m, and La2NiO4+delta 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/cm(2) at 900 and 800 degrees C, respectively. After the introduction of praseodymium oxide and ceria into the cathode and the anode, respectively, the power density is ca. 1 W/cm(2) at 700 degrees C. 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/cm(2) at 900 degrees C. 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.

引用

页码：541 / 546

页数：6

共 16 条

[1] Oxygen isotope exchange in La2NiO4±δ [J].