Browsing Faculty of Science by Author "2510b40d-372c-43be-8945-5f3a5b8da2e5"
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Combinatorial Study of the Si-Sn-O System as Negative Electrode Materials in Li-Ion Cells
Obrovac, MN; Dunlap, RA; Zhao, Xiuyun; Schreiber, M. T.; MacEachern, Lauren; Sanderson, R. J. (The Electrochemical Society, 2015-11-17)SixSnyO1-x-y films with 0.45 < x < 0.80, 0.05 < y < 0.35, and 0.05 < (1-x-y) < 0.40 have been prepared using a magnetron sputtering method. All compositions had an amorphous structure and good capacity retention. Reversible ... -
Electrochemistry of Catalytically Graphitized Ball Milled Carbon in Li Batteries
Obrovac, MN; Zhao, Xiuyun; Yao, Yuan; George, A. E.; Dunlap, R. A. (The Electrochemical Society, 2016-03-03)High carbon Fe-C composites with starting concentrations of 10, 20, 30, and 40 wt% Fe (2.3 - 12.5 atomic % Fe) were prepared by ball milling followed by annealing. Increasing the Fe concentration and annealing temperature ... -
Reversible lithium insertion in catalytically graphitized sugar carbon
Obrovac, Mark N.; Zhao, Xiuyun; Burke, Luke; Dunlap, Richard A (Elsevier, 2015-09-25)Highlights • First report of Li insertion in highly ordered catalytically derived graphite. • Fe catalyst combined with hard carbon precursors enable 1200 °C graphitization. • First report of highly ordered graphite ...