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dc.contributor.advisorYılmaz, Eda
dc.contributor.authorKudu, Ömer Ulaş
dc.date.accessioned2017-02-24T06:48:33Z
dc.date.available2017-02-24T06:48:33Z
dc.date.copyright2017-01
dc.date.issued2017-02
dc.date.submitted2017-02-22
dc.identifier.urihttp://hdl.handle.net/11693/32800
dc.descriptionCataloged from PDF version of article.en_US
dc.descriptionThesis (M.S.): Bilkent University, Department of Materials Science and Nanotechnology, İhsan Doğramacı Bilkent University, 2017.en_US
dc.descriptionIncludes bibliographical references (leaves 76-87).en_US
dc.description.abstractHuge energy demand in the world has caused depletion in non - renewable energy sources, and global climate change due to the consumed fuel exhausts. Renewable energy sources are eco - friendly alternatives. Electrochemical energy storage systems (EESS) are useful tools to store the energy, which is harvested from the renewable sources. Lithium - ion batteries are currently the most popular EESS owing to their several advantages over other systems. However, for their use in high energy demanding applications like electric vehicles, new electrode materials with higher capacities are required. Here, we demonstrate two anode materials with high capacities, aluminum and silicon. We address problems regarding their commercial applications and offer solutions. To improve the properties of aluminum, we fabricate aluminum - copper thin films via sputtering, then we apply age hardening to the alloy. We observe that age hardening indeed increase stability of aluminum anodes. In the second work, we synthesize silicon nanoparticles via laser ablation, whose sizes are smaller than 20 nm, and embed them into carbon nanofibers (CNFs) via electrospinning. The electrochemical battery tests are conducted with only CNFs, CNFs with commercial Si nanoparticles and CNFs with laser ablased Si nanoparticles. The cyclic stability of these composites are observed along with their rate capabilities.en_US
dc.description.statementofresponsibilityby Ömer Ulaş Kudu.en_US
dc.format.extentxv, 90 pages : illustrations, charts (some color) ; 29 cm.en_US
dc.language.isoEnglishen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectLithium - ion batteriesen_US
dc.subjectAnode materialsen_US
dc.subjectHigh capacityen_US
dc.subjectHigh energy densityen_US
dc.subjectElectrospinningen_US
dc.subjectAge hardeningen_US
dc.subjectSiliconen_US
dc.subjectAluminumen_US
dc.titleHigh capacity anode materials for lithium - ion batteriesen_US
dc.title.alternativeLityum iyon pilleri için yüksek kapasiteli anot malzemelerien_US
dc.typeThesisen_US
dc.departmentGraduate Program in Materials Science and Nanotechnologyen_US
dc.publisherBilkent Universityen_US
dc.description.degreeM.S.en_US
dc.identifier.itemidB155241
dc.embargo.release2018-02-21


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