2D segment model for a solid oxide fuel cell with a mixed ionic and electronic conductor as electrolyte

Shuanglin Shen, Meng Ni

Research output: Journal article publicationJournal articleAcademic researchpeer-review

21 Citations (Scopus)

Abstract

A 2D segment model for a solid oxide fuel cell (SOFC) with a mixed ionic and electronic conductor (MIEC) as electrolyte is developed, considering the mass transport, electrochemical reaction and charge transport. The electrochemical reaction is described by the Butler-Volmer equation and the expression of the oxygen partial pressure at the reaction interface is obtained by the energy conservation analysis. The model results are compared with experimental data and good agreement is achieved. The characteristics of the SOFC with a samaria doped ceria (SDC) electrolyte are analyzed by this model. Parametric simulations are conducted to investigate the uniformity of the leakage current (electronic current) and oxygen partial pressure in the electrolyte under various operating conditions. The results provide fundamental information on the leakage current in a SOFC and can serve as a useful tool for design optimization.
Original languageEnglish
Pages (from-to)5160-5168
Number of pages9
JournalInternational Journal of Hydrogen Energy
Volume40
Issue number15
DOIs
Publication statusPublished - 27 Apr 2015

Keywords

  • 2D model
  • Leakage current
  • Mixed ionic and electronic
  • Solid oxide fuel cell

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this