| 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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Armand, Michel
European Commission
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2023Transport Properties and Local Ions Dynamics in LATP‐Based Hybrid Solid Electrolytescitations
- 2022Interface Stability between Na3Zr2Si2PO12 Solid Electrolyte and Sodium Metal Anode for Quasi-Solid-State Sodium Batterycitations
- 2021Considering lithium-ion battery 3D-printing via thermoplastic material extrusion and polymer powder bed fusioncitations
- 2020Overview on Lithium-Ion Battery 3D-Printing By Means of Material Extrusioncitations
- 2020Poly(Ethylene Oxide)-LiTFSI Solid Polymer Electrolyte Filaments for Fused Deposition Modeling Three-Dimensional Printingcitations
- 2019Three-Dimensional Printing of a LiFePO4/Graphite Battery Cell via Fused Deposition Modelingcitations
- 2019Fluorine‐Free Noble Salt Anion for High‐Performance All‐Solid‐State Lithium–Sulfur Batteriescitations
- 2019Single-ion conducting poly(ethylene oxide carbonate) as solid polymer electrolyte for lithium batteriescitations
- 2018The effect of cation chemistry on physicochemical behaviour of superconcentrated NaFSI based ionic liquid electrolytes and the implications for Na battery performancecitations
- 2016Novel Na+ ion diffusion mechanism in mixed organic-inorganic ionic liquid electrolyte leading to high Na+ transference number and stable, high rate electrochemical cycling of sodium cellscitations
- 2016Stable zinc cycling in novel alkoxy-ammonium based ionic liquid electrolytescitations
- 2010Detailed studies on the fillers modification and their influence on composite, poly(oxyethylene)-based polymeric electrolytescitations
- 2009Ceramic-in-polymer versus polymer-in-ceramic polymeric electrolytes—A novel approachcitations
- 2009Modern generation of polymer electrolytes based on lithium conductive imidazole saltscitations
- 2007FLUOROSULPHONATED ELASTOMERS WITH LOW GLASS TRANSITION BASED OF VINYLIDENE FLUORIDE
Places of action
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article
Novel Na+ ion diffusion mechanism in mixed organic-inorganic ionic liquid electrolyte leading to high Na+ transference number and stable, high rate electrochemical cycling of sodium cells
Abstract
<p>Ambient temperature sodium batteries hold the promise of a new generation of high energy density, low-cost energy storage technologies. Particularly challenging in sodium electrochemistry is achieving high stability at high charge/discharge rates. We report here mixtures of inorganic/organic cation fluorosulfonamide (FSI) ionic liquids that exhibit unexpectedly high Na<sup>+</sup> transference numbers due to a structural diffusion mechanism not previously observed in this type of electrolyte. The electrolyte can therefore support high current density cycling of sodium. We investigate the effect of NaFSI salt concentration in methylpropylpyrrolidinium (C<sub>3</sub>mpyr) FSI ionic liquid (IL) on the reversible plating and dissolution of sodium metal, both on a copper electrode and in a symmetric Na/Na metal cell. NaFSI is highly soluble in the IL allowing the preparation of mixtures that contain very high Na contents, greater than 3.2 mol/kg (50 mol %) at room temperature. Despite the fact that overall ion diffusivity decreases substantially with increasing alkali salt concentration, we have found that these high Na<sup>+</sup> content electrolytes can support higher current densities (1 mA/cm<sup>2</sup>) and greater stability upon continued cycling. EIS measurements indicate that the interfacial impedance is decreased in the high concentration systems, which provides for a particularly low-resistance solid-electrolyte interphase (SEI), resulting in faster charge transfer at the interface. Na<sup>+</sup> transference numbers determined by the Bruce-Vincent method increased substantially with increasing NaFSI content, approaching >0.3 at the saturation concentration limit which may explain the improved performance. NMR spectroscopy, PFG diffusion measurements, and molecular dynamics simulations reveal a changeover to a facile structural diffusion mechanism for sodium ion transport at high concentrations in these electrolytes.</p>