| 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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| 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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Maibach, Julia
Chalmers University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2023From high‐pressure $β‐V_2O_5$ to $κ‐Na_xV_2O_5$ ( x = 0.4 − 0.55): A structural, chemical, and kinetic insight into a sodiated phase with a large interlayer spacecitations
- 2023Unraveling the Electrochemical Mechanism in Tin Oxide/MXene Nanocomposites as Highly Reversible Negative Electrodes for Lithium‐Ion Batteriescitations
- 2021Polyoxometalate Modified Separator for Performance Enhancement of Magnesium–Sulfur Batteriescitations
- 2021A self‐conditioned metalloporphyrin as a highly stable cathode for fast rechargeable magnesium batteries
- 2021A Self‐Conditioned Metalloporphyrin as a Highly Stable Cathode for Fast Rechargeable Magnesium Batteriescitations
- 2020Multi‐Electron Reactions Enabled by Anion‐Based Redox Chemistry for High‐Energy Multivalent Rechargeable Batteriescitations
- 2020Multi-electron reactions enabled by anion-participated redox chemistry for high-energy multivalent rechargeable batteriescitations
- 2020Multi‐electron reactions enabled by anion‐based redox chemistry for high‐energy multivalent rechargeable batteries
- 2018Dendrite-free lithium electrode cycling via controlled nucleation in low LiPF6 concentration electrolytescitations
Places of action
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article
Multi‐Electron Reactions Enabled by Anion‐Based Redox Chemistry for High‐Energy Multivalent Rechargeable Batteries
Abstract
<jats:title>Abstract</jats:title><jats:p>The development of multivalent metal (such as Mg and Ca) based battery systems is hindered by lack of suitable cathode chemistry that shows reversible multi‐electron redox reactions. Cationic redox centres in the classical cathodes can only afford stepwise single‐electron transfer, which are not ideal for multivalent‐ion storage. The charge imbalance during multivalent ion insertion might lead to an additional kinetic barrier for ion mobility. Therefore, multivalent battery cathodes only exhibit slope‐like voltage profiles with insertion/extraction redox of less than one electron. Taking VS<jats:sub>4</jats:sub> as a model material, reversible two‐electron redox with cationic–anionic contributions is verified in both rechargeable Mg batteries (RMBs) and rechargeable Ca batteries (RCBs). The corresponding cells exhibit high capacities of >300 mAh g<jats:sup>−1</jats:sup> at a current density of 100 mA g<jats:sup>−1</jats:sup> in both RMBs and RCBs, resulting in a high energy density of >300 Wh kg<jats:sup>−1</jats:sup> for RMBs and >500 Wh kg<jats:sup>−1</jats:sup> for RCBs. Mechanistic studies reveal a unique redox activity mainly at anionic sulfides moieties and fast Mg<jats:sup>2+</jats:sup> ion diffusion kinetics enabled by the soft structure and flexible electron configuration of VS<jats:sub>4</jats:sub>.</jats:p>