An electro-chemo-mechanical analysis of solid oxide fuel cell considering evolution of microstructure in porous electrode using phase-field method

Mayu Muramatsu, S. Takase, K. Yashiro, T. Kawada, K. Terada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

For the numerical simulation of oxygen potential distributions in Solid Oxide Fuel Cell (SOFC), the time-evolution of the anode microstructure is reflected in the macroscopic electrical conductivities and the amount of triple-phase boundaries. Once the oxygen potential distributions are determined, the time-variation of the reduction-induced strains due to nonstoichiometry of oxide materials is calculated along with the thermal strains. These strains cause the macroscopic stresses in mutually constrained components. Thus, the capability of the proposed method is demonstrated in characterizing the aging degradation of the macroscopic electro-chemo-mechanical behavior of SOFC that is caused by the Nisintering in cermet microstructures during long-period control.

Original languageEnglish
Title of host publicationCOUPLED PROBLEMS 2015 - Proceedings of the 6th International Conference on Coupled Problems in Science and Engineering
PublisherInternational Center for Numerical Methods in Engineering
Pages614-624
Number of pages11
ISBN (Electronic)9788494392832
Publication statusPublished - 2015 Jan 1
Externally publishedYes
Event6th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2015 - Venice, Italy
Duration: 2015 May 182015 May 20

Other

Other6th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2015
CountryItaly
CityVenice
Period15/5/1815/5/20

Keywords

  • Microstructure
  • Potential Simulation
  • Solid Oxide Fuel Cells
  • Stress Analysis

ASJC Scopus subject areas

  • Computational Mathematics
  • Engineering(all)
  • Applied Mathematics

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  • Cite this

    Muramatsu, M., Takase, S., Yashiro, K., Kawada, T., & Terada, K. (2015). An electro-chemo-mechanical analysis of solid oxide fuel cell considering evolution of microstructure in porous electrode using phase-field method. In COUPLED PROBLEMS 2015 - Proceedings of the 6th International Conference on Coupled Problems in Science and Engineering (pp. 614-624). International Center for Numerical Methods in Engineering.