Degradation mechanism of oxygen electrode under fuel-cell and electrolysis mode operations

  • Jong Ho Lee
  • , Ho Il Ji
  • , Sanghyeok Lee
  • , Ji Su Kim
  • , Sung Min Choi
  • , Sungeun Yang
  • , Hyoungchul Kim
  • , Kyung Joong Yoon
  • , Ji Won Son

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

2 Citations (Scopus)

Abstract

Solid oxide cells (SOCs) has dual functions that can be utilized not only as a power generation (fuel-cell mode) but also as an energy storage (electrolysis mode) tools which can be the potential future energy management systems. Nevertheless, it is yet far from their practical use due to their technical limitations, especially in its long-term stability. Particularly, degradations of oxygen-electrode in the both electrolysis and fuel-cell operations are considered as the most detrimental issues. Unfortunately, the origins and mechanisms of degradation in the oxygen-electrode have not been clearly understood mainly due to the difficulties in experimental verification. Hence, we simultaneously performed experimental and theoretical work with geometrically well-defined thin film electrode so that the microstructural and compositional changes could be successfully analyzed in nanoscale.

Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells 16, SOFC 2019
EditorsK. Eguchi, S. C. Singhal
PublisherElectrochemical Society Inc.
Pages681-685
Number of pages5
Edition1
ISBN (Electronic)9781607688747, 9781607688747
DOIs
Publication statusPublished - 2019
Externally publishedYes
Event16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019 - Kyoto, Japan
Duration: 2019 Sept 82019 Sept 13

Publication series

NameECS Transactions
Number1
Volume91
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

Conference16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019
Country/TerritoryJapan
CityKyoto
Period19/9/819/9/13

Bibliographical note

Publisher Copyright:
© The Electrochemical Society.

ASJC Scopus subject areas

  • General Engineering

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