A micro-solid oxide fuel cell system as battery replacement

被引：193

作者：

Bieberle-Huetter, Anja ^{[1
]}

Beckel, Daniel ^{[1
]}

Infortuna, Anna ^{[1
]}

Muecke, Ulrich P. ^{[1
]}

Rupp, Jennifer L. M. ^{[1
]}

Gauckler, Ludwig J. ^{[1
]}

Rey-Mermet, Samuel ^{[2
]}

Muralt, Paul ^{[2
]}

Bieri, Nicole R. ^{[4
]}

Hotz, Nico ^{[4
]}

Stutz, Michael J. ^{[4
]}

Poulikakos, Dimos ^{[4
]}

Heeb, Peter ^{[3
]}

Mueller, Patrik ^{[3
]}

Bernard, Andr ^{[3
]}

Gmuer, Roman ^{[5
]}

Hocker, Thomas ^{[5
]}

机构：

[1] ETH, CH-8093 Zurich, Switzerland

[2] Ecole Polytech Fed Lausanne, Ceram Lab, CH-1015 Lausanne, Switzerland

[3] Interstaaliche HochschTech Buchs NTB, Inst Micro & Nanotechnol, CH-9471 Buchs, Switzerland

[4] ETH, Lab Thermodynam Emerging Technol, CH-8092 Zurich, Switzerland

[5] Zuricher Hochschule Winterthur, Ctr Computat Phys, CH-8401 Winterthur, Switzerland

来源：

JOURNAL OF POWER SOURCES | 2008年 / 177卷 / 01期

关键词：

micro-solid oxide fuel cell; thin film deposition; microfabrication; gas processing; thermal system;

D O I：

10.1016/j.jpowsour.2007.10.092

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The concept and the design of a micro-solid oxide fuel cell system is described and discussed. The system in this study is called the ONEBAT system and consists of the fuel cell PEN (positive electrode - electrolyte - negative electrode) element, a gas processing unit, and a thermal system. PEN elements of free-standing multi-layer membranes are fabricated on Foturan (R) and on Si substrates using thin film deposition and microfabrication techniques. Open circuit voltages of up to 1.06 V and power of 150 mW cm(-2) are achieved at 550 degrees C. The membranes are stable up to 600 degrees C. The gas processing unit allows butane conversion of 95% and hydrogen selectivity of 83% at 550 degrees C in the reformer and efficient after-burning of hydrogen, carbon monoxide, and lower hydrocarbons in the post-combustor. Thermal system simulations prove that a large thermal gradient of more than 500 degrees C between the hot module and its exterior are feasible. The correlation between electrical power output - system size and thermal conductivity - heat-transfer coefficient of the thermal insulation material are shown. The system design studies show that the single sub-systems can be integrated into a complete system and that the requirements for portable electronic devices can be achieved with a base unit of 2.5 W and a modular approach. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：123 / 130

页数：8

共 26 条

[1] Fabrication and structural characterization of self-supporting electrolyte membranes for a micro solid-oxide fuel cell [J].