Blar i NTNU Open på forfatter "Tezel, Ahmet Oguz"
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Effect of a Boron Based Anion Receptor on Graphite and LiFePO4 Electrodes
Tezel, Ahmet Oguz; Sunde, Svein; Gomez-Camer, Juan Luis; Novak, Petr; Svensson, Ann Mari (Peer reviewed; Journal article, 2020)The effect of a boron based anion receptor, tris (hexafluoroisopropyle) borate (THFIPB), on the electrochemistry of graphite was investigated in 1 M LiPF6 in ethylene carbonate/dimethyl carbonate (EC/DMC, 1:1 by weight) ... -
Investigation of Carbon Block/Cast Iron/Collector Bar Interfaces in Aluminum Electrolysis
Tezel, Ahmet Oguz (Master thesis, 2012)The chemical events occurring at the carbon/cast iron/collector bar interface that might have an impact on the cathodic voltage drop in aluminum electrolysis is elucidated in this thesis. The primary aluminum production ... -
Investigation of Routes for Improving the Rate Capability of Electrodes in Li-ion Batteries
Sætnan, Marita (Master thesis, 2014)Lithium-ion battery, first introduced to market in 1991 by Sony, is today one of the most popular battery technologies in the world. The development of Li-ion battery applications from portable electronic devices to electric ... -
Novel carbon coating on aluminum current collectors for lithium-ion batteries
Onsrud, Morten; Tezel, Ahmet Oguz; Fotedar, Sameer; Svensson, Ann Mari (Peer reviewed; Journal article, 2022)In this work a significant improvement of the performance of LiFePO4 (LFP) composite cathodes, in particular at high rates (up to 12C), is demonstrated by the use of carbon-coated aluminum current collectors. The coating ... -
Solid Electrolyte Interphase (SEI) Formation on the Graphite Anode in Electrolytes Containing the Anion Receptor Tris (hexafluoroisopropyl) borate (THFIPB)
Tezel, Ahmet Oguz; Daniel, Streich; Gueguen, Aurelie; Hahlin, Maria; Sunde, Svein; Edstrøm, Kristina; Novak, Petr; Svensson, Ann Mari (Peer reviewed; Journal article, 2020)Addition of small amounts of tris(hexafluoroisopropyl)borate (THFIPB) has previously been shown to improve the capacity of graphite anodes in a wide temperature window during long-term cycling in electrolytes based on LiPF6 ... -
Stability of Conductive Carbon Additives for High-voltage Li-ion Battery Cathodes
Nilssen, Benedicte Eikeland (Master thesis, 2014)Conductive carbon additives are important constituents of the current state-of-the-art Li-ion battery cathodes, as the traditional active cathode materials are characterized by too low electronic conductivities. In ... -
The carbon-electrolyte interface at high cathodic voltages
Eikeland Nilssen, Benedicte; Tezel, Ahmet Oguz; Svensson, Ann Mari (Journal article, 2015)Different carbon materials (graphitic and carbon black) were investigated with respect to their electrochemical stability at high voltages in organic electrolytes typically used for Li-ion batteries. The materials were ... -
The Effect of Electrolyte Structure on Solid Electrolyte Interphase Formation on Graphitic Anodes for Li-Ion Batteries
Tezel, Ahmet Oguz (Doctoral theses at NTNU;2018:236, Doctoral thesis, 2018)Li-ion battery performance is substantially dependent on the SEI properties on the graphite anode. This is easily understood if we consider that the performance parameters such as cycle life and temperature window always ...