Effects of pressurization on cell performance of a microtubular SOFC with Sc-doped zirconia electrolyte

被引：22

作者：

Hashimoto, S. ^{[1
]}

Nishino, H. ^{[1
]}

Liu, Y. ^{[1
]}

Asano, K. ^{[1
]}

Mori, M. ^{[1
]}

Funahashi, Y. ^{[2
]}

Fujishiro, Y. ^{[3
]}

机构：

[1] Cent Res Inst Elect Power Ind, Kanagawa 2400196, Japan

[2] Fine Ceram Res Assoc, Moriyama Ku, Nagoya, Aichi 4638561, Japan

[3] Natl Inst Adv Ind Sci & Technol, Moriyama Ku, Nagoya, Aichi 4638561, Japan

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2008年 / 155卷 / 06期

关键词：

Atmospheric pressure - Electric resistance - Electrolytes - Ohmic contacts - Pressurization;

D O I：

10.1149/1.2903295

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this study, we fabricated an anode-supported microtubular solid oxide fuel cell (SOFC) with the cell configuration La0.6Sr0.4Co0.2Fe0.8O3 (LSCF)-Ce0.8Gd0.2O1.9 (CGO) cathode/CGO buffer layer/(ZrO2)(0.89)(Sc2O3)(0.1)(CeO2)(0.01) (ScSZ) electrolyte/Ni-ScSZ anode. A power generation test of the SOFC was carried out at 0.1-0.7 MPa at 650 degrees C. By using a wet H-2-N-2 gas mixture and air, the maximum power density of the microtubular cell was found to be 0.68 W cm(-2) (at 2.6 A cm(-2), U-f=78%) at atmospheric pressure (0.1 MPa). With increasing the operating pressure, the performance of the cell was improved, and the power density reached 1.48 W cm(-2) (at 2.8 A cm(-2), U-f=86%). It was confirmed by the current interruption method that both polarization and ohmic resistances decrease under a pressurized condition. (C) 2008 The Electrochemical Society.

引用

页码：B587 / B591

页数：5

共 21 条

[1]

ANDERSON HU, 1995, ELECTROCHEMICAL SOC, P375

[2]

AWANO M, 2006, P 7 EUR SOFC FOR, V7

[3] Fabrication and characterization of components for cube shaped micro tubular SOFC bundle [J].

Funahashi, Yoshihiro ;

Shimamori, Toru ;

Suzuki, Toshio ;

Fujishiro, Yoshinobu ;

Awano, Masanobu .

JOURNAL OF POWER SOURCES, 2007, 163 (02) :731-736

[4] Polarization Properties of an Intermediate Temperature Operated Ceramic Reactor in Power Generating Mode [J].

Hashimoto, S. ;

Nishino, H. ;

Liu, Y. ;

Asano, K. ;

Takei, K. ;

Mori, M. ;

Funahashi, Y. ;

Fujishiro, Y. .

SOLID OXIDE FUEL CELLS 10 (SOFC-X), PTS 1 AND 2, 2007, 7 (01) :609-+

[5]

HASHIMOTO S, IN PRESS J POWER SOU

[6]

HASHIMOTO S, IN PRESS J FUEL CELL

[7]

HIROTANI R, 2007, SOC AUTOMOT ENG, V2098, P1

[8]

Iritani J, 2001, ELEC SOC S, V2001, P63

[9]

Kosaka K., 2003, 12 S SOL OX FUEL CEL, P60

[10] Oxygen transport in La0.6Sr0.4Co0.2Fe0.8O3-δ [J].

Lane, JA ;

Benson, SJ ;

Waller, D ;

Kilner, JA .

SOLID STATE IONICS, 1999, 121 (1-4) :201-208

← 1 2 3 →