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Now showing items 11-17 of 17
Li15Si4 Formation in Silicon Thin Film Negative Electrodes
(The Electrochemical Society, 2015-11-19)
The conditions for Li15Si4 formation in Si thin film negative electrodes was studied during charge and discharge cycling in lithium cells. It was found that Li15Si4 formation can be suppressed during cycling of Si thin ...
The Electrochemistry of Amorphous Si-B Thin Film Electrodes in Li Cells
(The Electrochemical Society, 2015-11-14)
Abstract
Si1-xBx thin films of 0.071 ≤ x ≤ 0.950 have been synthesized using combinational sputtering. All Si1-xBx film compositions had a highly amorphous structure consisting of amorphous Si and B phases, as characterized ...
Reversible lithium insertion in catalytically graphitized sugar carbon
(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 ...
Mössbauer and Electrochemical Investigations of Carbon-Rich Fe1-xCx Films (Preprint)
(2015 Elsevier Ltd., 2015-07-10)
A thin film binary library of carbon-rich Fe1-xCx (0.47 ≤ x ≤ 0.97) alloys was prepared by combinatorial sputtering of carbon and iron. The sputtered library was characterized by X-ray diffraction and room temperature 57Fe ...
Investigation of the NaNixMn1-xO2 (0 ≤ x ≤ 1) System for Na-ion Battery Cathode Materials (Preprint)
(IOP Publishing, 2015-01-06)
Layered NaNixMn1-xO2 (0 ≤ x ≤ 1) oxides were prepared via solid state reactions. Different reaction conditions were required to obtain phase pure samples, depending on the value of x. The 0 ≤ x ≤ 0.1 compositions were ...
The Reversible Magnesiation of Pb (Preprint)
(Elsevier Ltd, 2015-03-04)
Sputtered Pb films have been found to reversibly alloy electrochemically with magnesium in Grignard based electrolytes. The voltage curve shows a single plateau at about 125 mV vs. Mg, corresponding to the formation of ...
Combinatorial Investigations of Ni-Si Negative Electrode Materials for Li-Ion Batteries
(IOPscience, 2015-06-30)
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 ...