| 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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Zhao-Karger, Zhirong
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024Calcium Metal Batteries - Similarities and Differences to their Magnesium and Lithium Counterparts
- 2024Recent developments and future prospects of magnesium–sulfur batteriescitations
- 2023Addressing the Sluggish Kinetics of Sulfur Redox for High‐Energy Mg–S Batteriescitations
- 2023A π‐Conjugated Porphyrin Complex as Cathode Material Allows Fast and Stable Energy Storage in Calcium Batteries
- 2022Dual Role of Mo 6 S 8 in Polysulfide Conversion and Shuttle for Mg–S Batteriescitations
- 2022Operando UV/vis Spectroscopy Providing Insights into the Sulfur and Polysulfide Dissolution in Magnesium-Sulfur Batteriescitations
- 2021Polyoxometalate Modified Separator for Performance Enhancement of Magnesium–Sulfur Batteriescitations
- 2021Surface Engineering of a Mg Electrode via a New Additive to Reduce Overpotentialcitations
- 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
- 2014Carbon materials for the positive electrode in all-vanadium redox flow batteriescitations
- 2014Gold Catalysis: AuCl-induced Polymerization of Styrene and n-Butylvinylethercitations
- 2014Fabrication of porous rhodium nanotube catalysts by electroless platingcitations
- 2012Fabrication of porous rhodium nanotube catalysts by electroless platingcitations
Places of action
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article
Multi-electron reactions enabled by anion-participated redox chemistry for high-energy multivalent rechargeable batteries
Abstract
Intense research efforts in electrochemical energy storage are being devoted to multivalent ion technologies in order to meet the growing demands for high energy and low-cost energy storage systems. However, the development of multivalent metal (such as Mg and Ca) based battery systems is hindered by lack of suitable cathode chemistries that show well reversible multi-electron redox reactions. Cationic redox centers in the classical cathodes could only afford stepwise single electron transfer, which we believe are not ideal for multivalent ion storage. The possible local charge balance issue would set additional kinetic barrier for ion mobility. Therefore, most of the multivalent battery cathodes only exhibit slope-like voltage profiles with insertion/extraction redox of less than one electron. To address this issue, we propose to activate anionic redox chemistry enabling multi-electron transfer in insertion cathodes for high-energy multivalent batteries. Taking VS 4 as a model material, reversible two-electron redox with synergetic cationic-anionic contribution has been verified in both rechargeable Mg batteries (RMBs) and rechargeable Ca batteries (RCBs). The corresponding cells exhibit high capacities of > 300 mAh g -1 at a current density of 100 mA g -1 in both RMBs and RCBs, resulting in a high energy density of >300 Wh kg -1 for RMBs and >500 Wh kg -1 for RCBs. Mechanistic studies reveal the unique redox activity at anionic sulphides moieties and demonstrate fast Mg 2+ ion diffusion kinetics enabled by the soft structure and flexible electron configuration of VS 4 . The concept of coupling a cathode based on anionic redox reactions with a multivalent metal anode provides a general approach towards high performance multivalent batteries.