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Electrochemistry of Catalytically Graphitized Ball Milled Carbon in Li Batteries
(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 ...
Structural and Electrochemical Investigation of FexSi1-x Thin Films in Li Cells
(The Electrochemical Society, 2016-07-20)
FexSi1-x thin films with 0 ≤ x ≤ 0.46 have been prepared by combinatorial sputtering and their electrochemical properties have been studied in Li half-cells. X-ray diffraction showed that all of the films had an amorphous ...
The Electrochemical Reaction Mechanism of Tin Phosphide with Sodium
(The Electrochemical Society, 2016-04-08)
The sodiation mechanism of Sn4P3 was studied by ex-situ X-ray diffraction and Mössbauer effect spectroscopy. These results show that Sn4P3 is initially amorphized during sodiation, and suggest that upon further sodiation ...
Electrochemistry of CuxSi1−x Alloys in Li Cells
(The Electrochemical Society, 2016-04-20)
The structure and electrochemistry in lithium cells of sputtered thin films and ball milled alloys in the Cu-Si system (0 ≤ x ≤ 0.60 in CuxSi1−x) were investigated. Both thin films and ball milled Cu-Si alloys showed the ...
Honeycomb Compound Na3Ni2BiO6 as Positive Electrode Material in Na Cells
(The Electrochemical Society, 2016-08-31)
Honeycomb compound Na3Ni2BiO6 was synthesized and studied as positive electrode material in sodium cells for the first time. This material exhibits a reversible capacity of ∼80 mAh/g and an average voltage of ∼3.1 V, ...
Phenolic Resin as an Inexpensive High Performance Binder for Li-Ion Battery Alloy Negative Electrodes
(The Electrochemical Society, 2016-07-22)
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 ...
Electrochemical Activity of Nano-NiSi2 in Li Cells
(The Electrochemical Society, 2016-09-09)
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 ...