Improving the electrochemical performance of solid oxide fuel cells by surface patterning of the electrolyte

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dc.authoridyildirim, fuat/0000-0002-2465-6931
dc.authoridTimurkutluk, Bora/0000-0001-6916-7720
dc.authoridCIGDEM, TIMURKUTLUK/0000-0002-8672-993X
dc.contributor.authorTimurkutluk, Cigdem
dc.contributor.authorAltan, Tolga
dc.contributor.authorYildirim, Fuat
dc.contributor.authorOnbilgin, Sezer
dc.contributor.authorYagiz, Mikail
dc.contributor.authorTimurkutluk, Bora
dc.date.accessioned2024-11-07T13:25:05Z
dc.date.available2024-11-07T13:25:05Z
dc.date.issued2021
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractThe effect of electrolyte surface patterning on the cell performance is investigated. The patterning process is accomplished by isostatically pressing the electrolyte together with a metal mesh placed on one surface of the electrolyte. In this respect, various electrolyte supports with different surface patterns are fabricated by altering the lamination conditions. Surface analyzes reveal that it is possible to modify the electrolyte surface with consistent patterns by the method suggested and some patterns are also formed on the untreated surface of the electrolyte. Electrolyte supported cells are also built on the patterned electrolyte and tested. Among the cases studied, the highest peak performance of 0.44 Wcm (-2) at 800 degrees C is reached from the cell with an electrolyte support subjected to isostatic pressing with a mesh under 50 MPa pressure and 70 degrees C temperature for 4 min after uniaxially pressing under 20 MPa for 4 min. This electrolyte also shows the lowest average roughness and average depth of the patterns formed. The reference cell with a flat electrolyte, on the other hand, provides 0.32 Wcm(-2) peak power density under the same testing conditions, indicating similar to 38% performance enhancement with the simple method recommended. Impedance measurements are also taken and discussed.
dc.identifier.doi10.1016/j.jpowsour.2021.230489
dc.identifier.issn0378-7753
dc.identifier.issn1873-2755
dc.identifier.scopus2-s2.0-85114410890
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.jpowsour.2021.230489
dc.identifier.urihttps://hdl.handle.net/11480/14492
dc.identifier.volume512
dc.identifier.wosWOS:000701663600003
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.subjectElectrolyte
dc.subjectSurface modification
dc.subjectMesh pressing
dc.subjectSurface area
dc.titleImproving the electrochemical performance of solid oxide fuel cells by surface patterning of the electrolyte
dc.typeArticle

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