Yazar "Keleş, Özgül" için Makale Koleksiyonu listeleme
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Fabrication of nickel manganese cobalt oxide (NMCO) anodes for lithium-ion batteries via hydrothermal process
Solmaz, Reyhan; Karahan, Billur Deniz; Keleş, Özgül (Springer, 2020)Nickel manganese cobalt oxide (NMCO) powders have been fabricated by hydrothermal method followed by a calcination. The present work reports for the first time in the open literature, the effects of ammonium fluoride (NH4F) ... -
Molybdenum oxide and hybride films as anodes for lithium ion batteries
Karahan, Billur Deniz; Yağsı, Ceren; Keleş, Özgül (American Scientific Publishers, 2019)Scientists have been working to replace graphite, the state-of-art anode material, to improve battery performances. In this sense, transitional metals and their oxides become attractive due to their capacities, widespread ... -
A study on the corrosion behavior of 7072/3004/7072 clad aluminum alloy in different media
Tunç, Irmak Doğan; Karahan, Billur Deniz; Keleş, Özgül (Springer, 2020)Cladding is an easy and economical method to design multifunctional aluminum structures with improved corrosion resistance, mechanical strength, and physical appearance. In this study, the electrochemical properties and ... -
Superlattice-structured films by magnetron sputtering as new era electrodes for advanced lithium-ion batteries
Keleş, Özgül; Karahan, Billur Deniz; Eryılmaz, Levent; Amine, Rachid; Abouimrane, Ali; Chen, Zonghai; Zuo, Xiaobing; Zhu, Zihua; Al-Hallaj, Said; Amine, Khalil (Elsevier, 2020)Sustaining a sound structure in Si-based anodes is extremely challenging because of the high volumetric expansion that occurs upon cycling. To maintain capacity retention during the cycling, there is a need for new designs ... -
Twisted nanocolumns for LIBs via phi-sweep method in ion assisted e-beam deposition
Karahan, Billur Deniz; Eryılmaz, Osman Levent; Amine, Khalil M.; Keleş, Özgül (Elsevier Science Sa, 2018)In this work, twisted nanostructured silicon-copper (with 19%at. copper) thin film is fabricated by glancing angle deposition phi-sweep process of ion beam assisted electron beam evaporation method. The thin film delivers ... -
ZrO2 coating via e-beam evaporation on PE separators for lithium-ion batteries
Sivlin, Dila; Ünal, Fatma; Karahan, Billur Deniz; Kazmanlı, Kürşat; Keleş, Özgül (Springer, 2021)In this paper, ZrO2 is deposited on a polyethylene-based separator via electron beam evaporation method. The analyses reveal that the application of the ceramic-based coating enhances the electrolyte uptake capability from ...