A polarization model for a solid oxide fuel cell with a mixed ionic and electronic conductor as electrolyte

Shuanglin Shen; Yupeng Yang; Liejin Guo; Hongtan Liu

doi:10.1016/j.jpowsour.2014.01.041

A polarization model for a solid oxide fuel cell with a mixed ionic and electronic conductor as electrolyte

Shuanglin Shen, Yupeng Yang, Liejin Guo, Hongtan Liu

Mechanical & Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

44 Scopus citations

Abstract

A polarization model for a solid oxide fuel cell (SOFC) with a mixed ionic and electronic conductor (MIEC) electrolyte is developed based on charge transport equation and a constant ionic conductivity assumption. The electrochemical reaction at the electrode is described by the Butler-Volmer equation and the energy conservation equation is included as an additional condition to complete the model. The modeling results agree well with experimental data. Utilizing this model the effects of key parameters, including conductivities of electrolyte, electrolyte thickness and cathode exchange current density on the performance of the SOFC are analyzed. The distribution of oxygen partial pressure in the electrolyte is also obtained.

Original language	English (US)
Pages (from-to)	43-51
Number of pages	9
Journal	Journal of Power Sources
Volume	256
DOIs	https://doi.org/10.1016/j.jpowsour.2014.01.041
State	Published - Jun 15 2014

Keywords

Leakage current
Mixed ionic and electronic conductor
Polarization model
Solid oxide fuel cell

ASJC Scopus subject areas

Electrical and Electronic Engineering
Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment
Physical and Theoretical Chemistry

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title = "A polarization model for a solid oxide fuel cell with a mixed ionic and electronic conductor as electrolyte",

abstract = "A polarization model for a solid oxide fuel cell (SOFC) with a mixed ionic and electronic conductor (MIEC) electrolyte is developed based on charge transport equation and a constant ionic conductivity assumption. The electrochemical reaction at the electrode is described by the Butler-Volmer equation and the energy conservation equation is included as an additional condition to complete the model. The modeling results agree well with experimental data. Utilizing this model the effects of key parameters, including conductivities of electrolyte, electrolyte thickness and cathode exchange current density on the performance of the SOFC are analyzed. The distribution of oxygen partial pressure in the electrolyte is also obtained.",

keywords = "Leakage current, Mixed ionic and electronic conductor, Polarization model, Solid oxide fuel cell",

author = "Shuanglin Shen and Yupeng Yang and Liejin Guo and Hongtan Liu",

note = "Funding Information: This work was supported by the NSFC Fund for Creative Research Groups (Grant No. 51121092 ). ",

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T1 - A polarization model for a solid oxide fuel cell with a mixed ionic and electronic conductor as electrolyte

AU - Shen, Shuanglin

AU - Yang, Yupeng

AU - Guo, Liejin

AU - Liu, Hongtan

N1 - Funding Information: This work was supported by the NSFC Fund for Creative Research Groups (Grant No. 51121092 ).

PY - 2014/6/15

Y1 - 2014/6/15

N2 - A polarization model for a solid oxide fuel cell (SOFC) with a mixed ionic and electronic conductor (MIEC) electrolyte is developed based on charge transport equation and a constant ionic conductivity assumption. The electrochemical reaction at the electrode is described by the Butler-Volmer equation and the energy conservation equation is included as an additional condition to complete the model. The modeling results agree well with experimental data. Utilizing this model the effects of key parameters, including conductivities of electrolyte, electrolyte thickness and cathode exchange current density on the performance of the SOFC are analyzed. The distribution of oxygen partial pressure in the electrolyte is also obtained.

AB - A polarization model for a solid oxide fuel cell (SOFC) with a mixed ionic and electronic conductor (MIEC) electrolyte is developed based on charge transport equation and a constant ionic conductivity assumption. The electrochemical reaction at the electrode is described by the Butler-Volmer equation and the energy conservation equation is included as an additional condition to complete the model. The modeling results agree well with experimental data. Utilizing this model the effects of key parameters, including conductivities of electrolyte, electrolyte thickness and cathode exchange current density on the performance of the SOFC are analyzed. The distribution of oxygen partial pressure in the electrolyte is also obtained.

KW - Leakage current

KW - Mixed ionic and electronic conductor

KW - Polarization model

KW - Solid oxide fuel cell

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