Novel concept of bolt-microtubular geometry for solid oxide fuel cells

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dc.authoridTimurkutluk, Bora/0000-0001-6916-7720
dc.authoridCIGDEM, TIMURKUTLUK/0000-0002-8672-993X
dc.contributor.authorAltan, Tolga
dc.contributor.authorTimurkutluk, Cigdem
dc.contributor.authorOnbilgin, Sezer
dc.contributor.authorTimurkutluk, Bora
dc.date.accessioned2024-11-07T13:24:46Z
dc.date.available2024-11-07T13:24:46Z
dc.date.issued2023
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractThis study introduces a proof of concept for a novel solid oxide fuel cell geometry called bolt-microtubular. Bolt-microtubular anode supports are formed by winding tape cast anode support strip on a threaded rod followed by isostatic pressing. Bolt-microtubular cells are built by dip coating other cell layers on these supports. Conventional microtubular anode supports and cells are also fabricated similarly for comparison and, microstructural, mechanical and electrochemical investigations are carried out. Different anode current collection strategies are also examined. The results indicate that with the proposed methods thread patterns can be successfully created on the anode supports and bolt-microtubular anode supports without any structural damages can be obtained after sintering. Although three point bending tests show similar to 27% decrease in the fracture strength of the anode supports with bolt-microtubular design for the wall thickness studied, bolt-microtubular cells outperform microtubular ones due to enhanced electrolyte-electrode interfaces and effective current collection. The highest peak electrochemical performance of 0.293 Wcm(-2) at 800 degrees C is obtained from the bolt-microtubular cell with external current collection, whereas the maximum power density of classical microtubular cell under the same operating conditions is 0.227 Wcm(-2). The overall results reveal that bolt-microtubular design is promising and deserves further investigations.
dc.description.sponsorshipScientific and Technological Research Council of Tuerkiye (TUBITAK) [222M185]
dc.description.sponsorshipThe equipment and material support of this research by The Scientific and Technological Research Council of Tuerkiye (TUBITAK) under a project number of 222M185 is gratefully acknowledged.
dc.identifier.doi10.1016/j.jpowsour.2023.233243
dc.identifier.issn0378-7753
dc.identifier.issn1873-2755
dc.identifier.scopus2-s2.0-85160309427
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.jpowsour.2023.233243
dc.identifier.urihttps://hdl.handle.net/11480/14304
dc.identifier.volume576
dc.identifier.wosWOS:001015027600001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofJournal of Power Sources
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectSolid oxide fuel cell
dc.subjectMicrotubular
dc.subjectBolt-microtubular
dc.subjectTape casting
dc.subjectIsostatic pressing
dc.titleNovel concept of bolt-microtubular geometry for solid oxide fuel cells
dc.typeArticle

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