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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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Berger, Thomas
University of Bern
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2024Comparison of FDM and SLA printing on woven fabricscitations
- 2024Fostering resilience and well-being in emerging adults with adverse childhood experiences: study protocol for a randomized controlled trial to evaluate the FACE self-help appcitations
- 2023On the Importance of Nanoparticle Necks and Carbon Impurities for Charge Trapping in TiO2citations
- 2023Charge Separation in BaTiO3 Nanocrystals: Spontaneous Polarization versus Point Defect Chemistrycitations
- 2022Investigating emotion regulation and social information processing as mechanisms linking adverse childhood experiences with psychosocial functioning in young swiss adults: the FACE epidemiological accelerated cohort studycitations
- 2021Chemical Preintercalation of H2V3O8-reduced Graphene Oxide Composites for Improved Na- and Li-ion Battery Cathodescitations
- 2020Fault zone structures and strain localization in clinoptilolite-tuff (Nizny Hrabovec, Slovak Republic)citations
- 2019Particle Consolidation and Electron Transport in Anatase TiO2 Nanocrystal Filmscitations
- 2016Modification of Charge Trapping at Particle/Particle Interfaces by Electrochemical Hydrogen Doping of Nanocrystalline TiO2citations
Places of action
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article
Chemical Preintercalation of H2V3O8-reduced Graphene Oxide Composites for Improved Na- and Li-ion Battery Cathodes
Abstract
<p>Due to a growing demand for sustainable electrical energy storage alternatives to Li-ion batteries (LIBs), Na-ion batteries (SIBs) are of great interest because of the abundance of Na<sup>+</sup>. By modifying layered H<sub>2</sub>V<sub>3</sub>O<sub>8</sub> by preintercalation and composite formation, improved electrochemical properties were obtained in LIBs. In analogy, a scalable soft chemistry synthesis is developed, to chemically presodiate H<sub>2</sub>V<sub>3</sub>O<sub>8</sub> for the first time, in addition to a composite formation reaction with reduced graphene oxide (rGO). Crystal structure and morphology of all compounds are determined and their electrochemical properties as cathode are evaluated with respect to both Na<sup>+</sup> and Li<sup>+</sup> intercalation. The combination of preintercalation and composite formation leads to excellent initial capacities of 96 mAh ⋅ g<sup>−1</sup> for SIBs and 371 mAh ⋅ g<sup>−1</sup> for LIBs (58 % and 48 % higher than unmodified H<sub>2</sub>V<sub>3</sub>O<sub>8</sub>) at a practical current density of 100 mA ⋅ g<sup>−1</sup>, demonstrating that H<sub>2</sub>V<sub>3</sub>O<sub>8</sub> is a promising cathode material for SIBs and LIBs.</p>