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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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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Hantusch, Martin
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Electrochemical Surface Nanostructuring of Ti<sub>47</sub>Cu<sub>38</sub>Fe<sub>2.5</sub>Zr<sub>7.5</sub>Sn<sub>2</sub>Si<sub>1</sub>Ag<sub>2</sub> Metallic Glass for Improved Pitting Corrosion Resistancecitations
- 2024Acid Treatments of Ti-Based Metallic Glasses for Improving Corrosion Resistance in Implant Applications
- 2023Facile one-pot hydrothermal synthesis of a zinc oxide/curcumin nanocomposite with enhanced toxic activity against breast cancer cells
- 2023Nano-scale new Heusler compounds NiRh2Sb and CuRh2Sbcitations
- 2023Effect of minor gallium addition on corrosion, passivity, and antibacterial behaviour of novel β-type Ti–Nb alloys
- 2023Laser interference-treatment tunes surface states and corrosion behavior of additively manufactured near-beta Ti alloy
- 2023Fine-tuning effect of Direct Laser Interference Patterning on the surface states and the corrosion behavior of a biomedical additively manufactured beta Ti alloycitations
- 2022Comparative Study of Onion-like Carbons Prepared from Different Synthesis Routes towards Li-Ion Capacitor Applicationcitations
- 2022The Role of Al2O3 ALD Coating on Sn-Based Intermetallic Anodes for Rate Capability and Long-Term Cycling in Lithium-Ion Batteriescitations
- 2021Dielectric Properties and Spectral Characteristics of Photocatalytic Constant of TiO2 Nanoparticles Doped with Cobaltcitations
- 2021Dielectric properties and spectral characteristics of photocatalytic constant of TiO2 nanoparticles doped with cobalt ; Propriedades dielétricas e características espectrais da constante fotocatalítica de nanopartículas TiO2 dopadas com cobaltocitations
- 2021Formation of Bi$_2$Ir nanoparticles in a microwave-assisted polyol process revealing the suboxide Bi$_4$Ir$_2$Ocitations
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article
The Role of Al2O3 ALD Coating on Sn-Based Intermetallic Anodes for Rate Capability and Long-Term Cycling in Lithium-Ion Batteries
Abstract
<p>The electrochemical performances of CoSn<sub>2</sub> and Ni<sub>3</sub>Sn<sub>4</sub> as potential anode materials in lithium-ion batteries (LIBs) are investigated using varying thicknesses of an alumina layer deposited by the atomic layer deposition (ALD) technique. Rate capability results showed that at high current densities, Al<sub>2</sub>O<sub>3</sub>-coated CoSn<sub>2</sub> and Ni<sub>3</sub>Sn<sub>4</sub> electrodes after 10-ALD cycles outperformed uncoated materials. The charge capacities of coated CoSn<sub>2</sub> and Ni<sub>3</sub>Sn<sub>4</sub> electrodes are 571 and 134 mAh g<sup>−1</sup>, respectively, at a high current density of 5 A g<sup>−1</sup>, while the capacities of uncoated electrodes are 363 and 11 mAh g<sup>−1</sup>. When the current density is reduced to 1 A g<sup>−1</sup>, however, the cycling performances of Al<sub>2</sub>O<sub>3</sub>-coated CoSn<sub>2</sub> and Ni<sub>3</sub>Sn<sub>4</sub> electrodes fade faster after almost 40 cycles than uncoated electrodes. The explanation is found in the composition of the solid-electrolyte interface (SEI), which strongly depends on the current rate. Thus, X-ray photoelectron spectroscopy analysis of SEI layers on coated samples cycles at a low current density of 0.1 Ag<sup>−1</sup>, revealed organic carbonates as major products, which probably have a low ionic conductivity. In contrast, the SEI of coated materials cycled at 5 Ag<sup>−1</sup> consists mostly of mixed inorganic/organic fluorine-rich Al-F and C-F species facilitating a higher ionic transport, which improves electrochemical performance.</p>