Design of a dual-layer ceramic interconnect based on perovskite oxides for segmented-in-series solid oxide fuel cells

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dc.contributor.authorPark, Beom Kyeongko
dc.contributor.authorKim, Dae-Wiko
dc.contributor.authorSong, Rak-Hyunko
dc.contributor.authorLee, Seung-Bokko
dc.contributor.authorLim, Tak-Hyoungko
dc.contributor.authorPark, Seok-Jooko
dc.contributor.authorPark, Chong-Ookko
dc.contributor.authorLee, Jong-Wonko
dc.date.accessioned2016-05-16T08:48:46Z-
dc.date.available2016-05-16T08:48:46Z-
dc.date.created2015-12-10-
dc.date.created2015-12-10-
dc.date.issued2015-12-
dc.identifier.citationJOURNAL OF POWER SOURCES, v.300, pp.318 - 324-
dc.identifier.issn0378-7753-
dc.identifier.urihttp://hdl.handle.net/10203/207461-
dc.description.abstractA segmented-in series (SIS) SOFC consists of segmented unit cells connected in electrical series and shows improved stack efficiency over conventional SOFCs. In this design, a thin interconnect film provides both electrical contact and sealing between the anode of one cell and the cathode of the next; thus, it should have high conductivity and chemical/structural stability in both reducing and oxidizing atmospheres as well as impermeability to gases. Here, we report a dual-layer interconnect film for SIS -SOFCs comprising perovskite-type oxides, Sr0.7La0.2TiO3 (exposed to a reducing atmosphere) and La0.8Sr0.2FeO3 (exposed to an oxidizing atmosphere). The interconnect film is not only very dense but also highly conductive and stable under SOFC operating conditions; in particular, it shows an area-specific resistance of 19.6 m Omega cm(2) at 800 similar to degrees C, which is much lower than the generally accepted limit for SOFCs. A flat-tubular SIS-SOFC fabricated using these interconnect films exhibits a power density as high as 340 mW cm(-2), which proves the feasibility of the dual-layer interconnect design.-
dc.languageEnglish-
dc.publisherELSEVIER SCIENCE BV-
dc.subjectYTTRIA-STABILIZED ZIRCONIA-
dc.subjectDOPED STRONTIUM-TITANATE-
dc.subjectCATHODE-
dc.subjectELECTROLYTE-
dc.subjectPERFORMANCE-
dc.subjectSTACK-
dc.subjectCO-
dc.titleDesign of a dual-layer ceramic interconnect based on perovskite oxides for segmented-in-series solid oxide fuel cells-
dc.typeArticle-
dc.identifier.wosid000364439400038-
dc.identifier.scopusid2-s2.0-84942581656-
dc.type.rimsART-
dc.citation.volume300-
dc.citation.beginningpage318-
dc.citation.endingpage324-
dc.citation.publicationnameJOURNAL OF POWER SOURCES-
dc.identifier.doi10.1016/j.jpowsour.2015.09.082-
dc.contributor.localauthorPark, Chong-Ook-
dc.contributor.nonIdAuthorKim, Dae-Wi-
dc.contributor.nonIdAuthorSong, Rak-Hyun-
dc.contributor.nonIdAuthorLee, Seung-Bok-
dc.contributor.nonIdAuthorLim, Tak-Hyoung-
dc.contributor.nonIdAuthorPark, Seok-Joo-
dc.contributor.nonIdAuthorLee, Jong-Won-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorSolid oxide fuel cell-
dc.subject.keywordAuthorSegmented-in-series-
dc.subject.keywordAuthorInterconnect-
dc.subject.keywordAuthorPerovskite-
dc.subject.keywordAuthorCoating-
dc.subject.keywordPlusYTTRIA-STABILIZED ZIRCONIA-
dc.subject.keywordPlusDOPED STRONTIUM-TITANATE-
dc.subject.keywordPlusCATHODE-
dc.subject.keywordPlusELECTROLYTE-
dc.subject.keywordPlusPERFORMANCE-
dc.subject.keywordPlusSTACK-
dc.subject.keywordPlusCO-
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