Clarifying the Butler-Volmer equation and related approximations for calculating activation losses in solid oxide fuel cell models

被引：234

作者：

Noren, DA ^{[1
]}

Hoffman, MA ^{[1
]}

机构：

[1] Univ Calif Davis, Dept Mech & Aeronaut Engn, Davis, CA 95616 USA

来源：

JOURNAL OF POWER SOURCES | 2005年 / 152卷 / 01期

关键词：

Butler-Volmer; activation; polarization; overpotential; solid oxide fuel cell;

D O I：

10.1016/j.jpowsour.2005.03.174

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：

This paper shows the importance of including the activation losses in a model designed to accurately predict the voltage-current relationship of a modem solid oxide fuel cell. The governing equation for voltage drop due to activation losses, the Butler-Volmer equation, is discussed and the derivation and applicability of several approximations is investigated. Finally, the assumptions required to combine the separate anode and cathode activation loss calculations into a single-term equation are claritied. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：175 / 181

页数：7

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