Browsing Obrovac, Mark N. by Issue Date

Now showing items 41-45 of 45

  • Si85Fe15Ox Alloy Anode Materials with High Thermal Stability for Lithium Ion Batteries 

    Yijia Liu, Michael Charlton, Jun Wang, J. Craig Bennett and M. N. Obrovac. Si85 Fe15 Ox Alloy Anode Materials with High Thermal Stability for Lithium Ion Batteries. J. Electrochem. Soc. (2021), 168 (11), 110521.
    The synthesis, microstructure and electrochemical properties of ball milled Si85Fe15Ox alloys with different oxygen contents are investigated. These materials combine the features of Si-M alloys (low irreversible capacity) ...

  • Preparation of Low Surface Area Si-Alloy Anodes for Li-Ion Cells by Ball Milling 

    Simeng Cao, Mohammad H. Tahmasebi, Shayne Gracious, J. Craig Bennett, and M. N. Obrovac. Preparation of Low Surface Area Si-Alloy Anodes for Li-Ion Cells by Ball Milling. J. Electrochem. Soc. (2022), 169 (6), 060540.
    A new and simple 2-step milling technique is utilized to produce Si–Ti–N alloys with significantly reduced surface area compared to conventional ball milling, while still attaining a full amorphous active Si phase. Surface ...

  • Lab-scale chemical vapor deposition onto powders 

    113. Jun Wang and M.N Obrovac. Lab-scale Chemical Vapor Deposition onto Powders. AIP Advances, 12 (2022) 075209. doi: https://doi.org/10.1063/5.0095882
    In this paper, a laboratory chemical vapor deposition (CVD) reactor is described, which features an opposing screw rotating fluidized bed. The reactor efficiently concentrates powdered reactants in the reaction zone while ...

  • Quantitative Measurement of Compositional Inhomogeneity in NMC Cathodes by X-ray Diffraction Postprint 

    Published Version: Mohammad H. Tahmasebi and M.N.Obrovac. Quantitative Measurement of Compositional Inhomogeneity in NMC Cathodes by X-ray Diffraction. J.Electrochem. Soc. (2023). Accepted manuscript. https://doi.org/10.1149/1945-7111/acefff
    A novel X-ray diffraction (XRD) analysis technique is described for quantitatively measuring compositional inhomogeneity in Li[NixMnyCoz]O2 (NMC) cathode materials and NMC precursors. Single-phase rock salt precursors with ...

  • Hydrothermally Deposited Carbon Coatings for Li-Ion Battery Active Materials Postprint 

    Published Version: Jun Wang, Yidan Cao and M.N Obrovac. Hydrothermally Deposited Carbon Coatings for Li-Ion Battery Active Materials. J.Electrochem. Soc. (2023). Accepted manuscript. https://doi.org/10.1149/1945-7111/acf0
    Hydrothermally deposited carbon coatings were evaluated for Li-ion battery materials. The applied coatings were found to be highly uniform and porous, with a density of 1.89 g/ml and a surface area of 370 m2/g. In lithium ...