Development of titanium bipolar plates fabricated by additive manufacturing for PEM fuel cells in electric vehicles

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dc.authoridTimurkutluk, Bora/0000-0001-6916-7720
dc.authoridCELIK, SELAHATTIN/0000-0002-7306-9784
dc.contributor.authorCelik, Selahattin
dc.contributor.authorTimurkutluk, Bora
dc.contributor.authorAydin, Ugur
dc.contributor.authorYagiz, Mikail
dc.date.accessioned2024-11-07T13:34:22Z
dc.date.available2024-11-07T13:34:22Z
dc.date.issued2022
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractBipolar plates (BPs) are one of the main parts of proton exchange membrane (PEM) fuel cell stacks, which constitute a significant percentage of a PEM fuel cell system in terms of cost, weight, and structural strength. Although frequently used graphite BPs have low density, high conductivity, and high corrosion resistance, machining the desired flow channels on these plates is challenging. On the other hand, BPs made of various materials rather than graphite can be also fabricated by additive manufacturing methods. These methods can be considered as a reasonable alternative to conventional machining for the fabrication of graphite BPs in PEM fuel cells regarding material cost, fabrication of flow channels, and some post-processes in which the large-scale manufacturing of graphite BPs is more complex. This study offers a comparison of formed stainless-steel, additive manufactured titanium and machined composite graphite plates having the same flow-field geometry as a bipolar plate. In addition, titanium BPs are coated with gold and their performances are compared. Among the cells tested, the highest peak power of 639 mWcm-2 is measured from the cell with 450 nm gold coated titanium BP, whereas those of the cell with con-ventional graphite and stainless-steel BP are only around 322 mWcm-2 and 173 mWcm-2, respectively. Moreover, a new titanium bipolar plate design providing high specific power density is also presented. (c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
dc.description.sponsorshipScientific and Technological Research Council of Turkiye (TUBITAK-TEYDEB) [3180578]; ERMAKSAN
dc.description.sponsorshipThis work was supported by the Scientific and Technological Research Council of Turkiye (TUBITAK-TEYDEB) under a project with Grant no: 3180578. The equipment and materials support by ERMAKSAN for titanium plate fabrication is also gratefully acknowledged.
dc.identifier.doi10.1016/j.ijhydene.2022.08.282
dc.identifier.endpage37966
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.issue89
dc.identifier.scopus2-s2.0-85138216768
dc.identifier.scopusqualityQ1
dc.identifier.startpage37956
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2022.08.282
dc.identifier.urihttps://hdl.handle.net/11480/15947
dc.identifier.volume47
dc.identifier.wosWOS:000881699100006
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofInternational Journal of Hydrogen Energy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectPEM fuel cells
dc.subjectBipolar plates
dc.subjectFormability
dc.subjectAdditive manufacturing
dc.subjectGold coating
dc.titleDevelopment of titanium bipolar plates fabricated by additive manufacturing for PEM fuel cells in electric vehicles
dc.typeArticle

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