Browsing Obrovac, Mark N. by Author "a2ea86d7-a6f8-49c6-92ab-e856dac3806d"

Now showing items 1-6 of 6

  • Combinatorial Investigations of Ni-Si Negative Electrode Materials for Li-Ion Batteries 

    Zhijia Du, T.D. Hatchard, R.A. Dunlap and M.N. Obrovac, Combinatorial Investigations of Ni-Si Negative Electrode Materials for Li-Ion Batteries, J. Electrochem. Soc., 162 (2015), A1858-A1863.
    Sputtered thin films in the Ni-Si system (0 ≤ x ≤ 0.65 in NixSi1-x) were studied for use as anode materials in Li-ion cells. All compositions were found to be amorphous. The Ni in Ni-Si films was found to suppress the ...

  • Electrochemical Activity of Nano-NiSi2 in Li Cells 

    Zhijia Du, T.D. Hatchard, P. Bissonnette, R. A. Dunlap and M. N. Obrovac, Electrochemical Activity of Nano-NiSi2 in Li Cells, J. Electrochem. Soc., 163 (2016) A2456-A2460.
    Crystalline and nanocrystalline NiSi2 were studied as negative electrode materials in Li cells. Crystalline NiSi2 was found to be inactive toward lithiation/delithiation. However, it was found that NiSi2 becomes active ...

  • Phenolic Resin as an Inexpensive High Performance Binder for Li-Ion Battery Alloy Negative Electrodes 

    T.D. Hatchard, P. Bissonnette and M.N. Obrovac, Phenolic Resin as an Inexpensive High Performance Binder for Li-Ion Battery Alloy Negative Electrodes, J. Electrochem. Soc., 163 (2016) A2035-A2039.
    Phenolic resin was evaluated as a binder material for Li-ion battery negative electrodes containing Si-based alloys. Phenolic resin was found to have a large first lithiation capacity of about 1200 mAh/g, which is suspected ...

  • Polyaniline Electrode Activation in Li Cells 

    Michael Charlton, T. D. Hatchard, and M. N. Obrovac. Polyaniline Electrode Activation in Li Cells. J. Electrochem. Soc. (2020), 167 (8), 080501.
    Polyaniline (PANi) can be used as an electroactive organic cathode material in Li-cells with multiple redox states. The theoretical specific capacity of the emeraldine base (PEB) is 150 mAh g−1. In this study, we show how ...

  • Rapid mechanochemical synthesis of amorphous alloys 

    T.D. Hatchard, A. Genkin and M.N. Obrovac, Rapid Mechanochemical Synthesis of Amorphous Alloys, AIP Advances, 7 (2017) 045201.
    A rapid method for preparing amorphous alloys has been developed utilizing a SPEX high energy ball mill. Parameters such as ball size, mass of balls and milling time, were systematically optimized to prepare amorphous ...

  • Sintered polymeric binders for Li-ion battery alloy anodes 

    T.D. Hatchard, R.A. Fielden and M.N. Obrovac, Sintered Polymeric Binders for Li-ion Battery Alloy Anodes, Can. J. Chem., 96 (2018) 765-770.
    The cycling performance in lithium half cells of Si alloy electrodes with polyvinylidene fluoride or polyimide binders were evaluated after the electrodes were cured at temperatures below and above the binder carbonization ...