Browsing Obrovac, Mark N. by Author "5a4f7b87-5b43-44f9-8d49-384340c508ec"

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  • Electrochemistry and Thermal Behavior of SiOx Made by Reactive Gas Milling 

    Yidan Cao, R. Dunlap, and M. N. Obrovac. Electrochemistry and Thermal Behavior of SiOx Made by Reactive Gas Milling. J. Electrochem. Soc. (2020), 167 (11), 110501.
    SiOx with various oxygen contents were synthesized from Si powder by a simple room-temperature ball milling method by controlling the air exposure time during milling. The resulting SiOx consists of nano and amorphous Si ...

  • 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 ...

  • An Investigation of the Fe-Mn-Si System for Li-Ion Battery Negative Electrodes 

    Yidan Cao, Benjamin Scott, R.A. Dunlap, Jun Wang and M.N. Obrovac, An Investigation of the Fe-Mn-Si System for Li-Ion Battery Negative Electrodes, J. Electrochem. Soc., 166 (2019) A21-A26. doi: 10.1149/2.1111816jes
    Fe-Mn-Si alloys prepared by ball milling were investigated as negative electrodes for Li-ion batteries. X-ray diffraction and room temperature 57Fe Mössbauer measurements were used to characterize alloy structure, which ...

  • Li Insertion in Ball Milled Si-Mn Alloys 

    Yidan Cao, J.C. Bennett, R.A. Dunlap and M.N. Obrovac, Li Insertion in Ball Milled Si-Mn Alloys, J. Electrochem. Soc., 165 (2018) A1734-A1740.
    Si1-xMnx (0 ≤ x ≤0.5, x=0.05)alloyswereprepared by ball milling and studied as negative electrode materials in Li cells. These alloys were found to be unique amongtransition metals. When x ≤ 0.35, the alloys are essentially ...