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An Improvement of SOFC Durability by the Mass Transport Analysis at the Interfaces

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Energy Technology 2016

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Abstract

The durability of SOFCs is one of the critical issues to realize the SOFC systems. In order to improve the durability, a precise degradation mechanism should be clarified at the different functional ceramic interfaces in SOFC cells and stacks. This paper reviews the improvement of SOFC durability by the mass transport analysis especially at cathode/interlayer/electrolyte interfaces. We have made a precise analysis on the reaction of cathode with impurities. Especially at the (La,Sr)(Co,Fe)O3/CeO2/ZrO2 interfaces, a significant amount of SrCrO4 and SrSO4 were observed at the (La,Sr)(Co,Fe)O3 surface as well as inside the (La,Sr)(Co,Fe)O3 cathode, which suggested some process occurred for both poisoning. Possible degradation mechanisms were proposed based on the observation data.

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Author information

Authors and Affiliations

  1. Research Institute of Energy Conservation, National Institute of Advanced Industrial Science and Technology (AIST), AIST Central 5, Higashi 1-1-1, Tsukuba, 305-8565, Japan

    Teruhisa Horita

Authors
  1. Teruhisa Horita
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Editor information

Editors and Affiliations

  1. Semiconductor Research & Development Center, IBM, USA

    Li Li (Advisory Scientist) (Advisory Scientist)

  2. Advanced Process & Decision Systems Department, Idaho National Laboratory (INL), USA

    Donna Post Guillen (Distinguished Research Engineer and Group Lead) (Distinguished Research Engineer and Group Lead)

  3. ‘The Guru’ at IND LLC, USA

    Neale R. Neelameggham

  4. department of Mechanical Engineering, University of Alaska Fairbanks (UAF), USA

    Lei Zhang (Assistant Professor) (Assistant Professor)

  5. SYSU-CMU Joint Institute of Engineering, Sun Yat-sen University (SYSU), Guangzhou, China

    Jingxi Zhu (Assistant Professor) (Assistant Professor)

  6. NanoMEGAS, USA

    Xuan Liu (applications scientist working) (applications scientist working)

  7. Division of Materials Science and Engineering, Boston University, USA

    Soumendra N. Basu (professor of mechanical engineering and the Associate Division Head) (professor of mechanical engineering and the Associate Division Head)

  8. Australian national research agency CSIRO, Australia

    Nawshad Haque (Senior Scientist and Team Leader) (Senior Scientist and Team Leader)

  9. Nucor Steel, USA

    Tao Wang (Castrip Metallurgical Engineer) (Castrip Metallurgical Engineer)

  10. Altairnano, Reno, Nevada, USA

    Dirk E. Verhulst (independent consultant in process metallurgy and energy efficiency, Director of Research) (independent consultant in process metallurgy and energy efficiency, Director of Research)

  11. Rolls Royce LG Fuel Cell Systems, Inc., Ohio, USA

    Amit Pandey (development lead in reliability) (development lead in reliability)

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© 2016 TMS (The Minerals, Metals & Materials Society)

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Horita, T. (2016). An Improvement of SOFC Durability by the Mass Transport Analysis at the Interfaces. In: Li, L., et al. Energy Technology 2016. Springer, Cham. https://doi.org/10.1007/978-3-319-48182-1_19

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