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http://dx.doi.org/10.4191/kcers.2015.52.5.304

Suppressing Lateral Conduction Loss of Thin-film Cathode by Inserting a Denser Bridging Layer  

Park, Jung Hoon (High-Temperature Energy Materials Research Center, Korea Institute of Science and Technology)
Lee, Seung Hwan (High-Temperature Energy Materials Research Center, Korea Institute of Science and Technology)
Kim, Hyoungchul (High-Temperature Energy Materials Research Center, Korea Institute of Science and Technology)
Yoon, Kyung Joong (High-Temperature Energy Materials Research Center, Korea Institute of Science and Technology)
Lee, Jong-Ho (High-Temperature Energy Materials Research Center, Korea Institute of Science and Technology)
Han, Seung Min (Graduate School of EEWS, Korea Advanced Institute of Science and Technology)
Son, Ji-Won (High-Temperature Energy Materials Research Center, Korea Institute of Science and Technology)
Publication Information
Journal of the Korean Ceramic Society / v.52, no.5, 2015 , pp. 304-307 More about this Journal
Abstract
To reduce the lateral conduction loss of thin-film-processed cathodes, the microstructure of the thin-film cathode is engineered to contain a denser bridging layer in the middle. By doing so, the characteristic crack-like pores that separate the cathode domains in thin-film-processed cathodes and hamper lateral conduction are better connected and, as a result, the sheet resistance of the cathode is effectively reduced by a factor of 5. This induces suppression of the lateral conduction loss and expansion of the effective current collecting area; the cell performance is improved by more than 30%.
Keywords
Solid oxide fuel cell; Thin-film cathode; Pulsed laser deposition; Current collection;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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