| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Rančić, M. |
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| Azevedo, Nuno Monteiro |
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Lee, Hojin -J
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document
Synthesis of Water-Resistant<sup> </sup>thin TiO<sub>x</sub> Layer-Coated High-Capacity LiNi <sub>a</sub> Co <sub>b</sub> Al<sub>1-a-B </sub>O<sub>2</sub> (a > 0.85) Cathode and Its Stable Charge/Discharge Cycle Cathode Performance to Apply a Water-Based Hybrid Polymer Binder to Li-Ion Batteries
Abstract
<jats:p>Titanium oxide (TiO<jats:sub>x</jats:sub>) coating was treated on a surface of A LiNi<jats:italic><jats:sub>a</jats:sub></jats:italic>Co<jats:italic><jats:sub>b</jats:sub></jats:italic>Al<jats:sub>1-<jats:italic>a</jats:italic>-<jats:italic>b</jats:italic></jats:sub>O<jats:sub>2 </jats:sub>(<jats:italic>a</jats:italic> > 0.85) cathode material, which exhibited high capacity of 200 mAhg<jats:sup>-1</jats:sup> and however, the charge/discharge capacity with pristine LiNi<jats:italic><jats:sub>a</jats:sub></jats:italic>Co<jats:italic><jats:sub>b</jats:sub></jats:italic>Al<jats:sub>1-<jats:italic>a</jats:italic>-<jats:italic>b</jats:italic></jats:sub>O<jats:sub>2</jats:sub> degraded seriously after contacting with water. The formation of TiO<jats:sub>x</jats:sub> layer on the cathode material surface was characterized with field-emission scanning electron microscope (FE-SEM), transmission electron microscope (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The TiO<jats:sub>x</jats:sub>-coated LiNi<jats:italic><jats:sub>a</jats:sub></jats:italic>Co<jats:italic><jats:sub>b</jats:sub></jats:italic>Al<jats:sub>1-<jats:italic>a</jats:italic>-<jats:italic>b</jats:italic></jats:sub>O<jats:sub>2 </jats:sub>cathode material did not form bubbles in the coating process when a water-based slurry was prepared with TiO<jats:sub>x</jats:sub>-coated LiNi<jats:italic><jats:sub>a</jats:sub></jats:italic>Co<jats:italic><jats:sub>b</jats:sub></jats:italic>Al<jats:sub>1-<jats:italic>a</jats:italic>-<jats:italic>b</jats:italic></jats:sub>O<jats:sub>2</jats:sub> particles and a water-based hybrid polymer binder, and then the slurry was coated on a aluminum current collector. Therefore, the cathode electrode fabricated with TiO<jats:sub>x</jats:sub>-coated LiNi<jats:italic><jats:sub>a</jats:sub></jats:italic>Co<jats:italic><jats:sub>b</jats:sub></jats:italic>Al<jats:sub>1-<jats:italic>a</jats:italic>-<jats:italic>b</jats:italic></jats:sub>O<jats:sub>2</jats:sub> exhibited comparable cycle and rate performance with the cathode which was composed of pristine LiNi<jats:italic><jats:sub>a</jats:sub></jats:italic>Co<jats:italic><jats:sub>b</jats:sub></jats:italic>Al<jats:sub>1-<jats:italic>a</jats:italic>-<jats:italic>b</jats:italic></jats:sub>O<jats:sub>2</jats:sub> particle and organic solvent-based PVdF binder even after it was exposed in the water-based slurry for 7 days.</jats:p>