| 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
The effect of cation chemistry on physicochemical behaviour of superconcentrated NaFSI based ionic liquid electrolytes and the implications for Na battery performance
Abstract
<p>There is growing interest in ionic liquid based electrolytes for Na metal and Na-ion batteries. Here we compare three quite distinct bis(fluorosulfonyl)imide (FSI) anion based ionic liquids with small alkyl phosphonium (trimethyl isobutyl phosphonium, methyl tri-isobutyl: P<sub>111i4</sub>, P<sub>1i4i4i4</sub>) or alkoxy ammonium counter cations (N-ethyl-2-(2-methoxyethoxy)-N,N-bis(2-(2-methoxyethoxy)ethyl)ethan-1-ammonium bis(fluorosulfonyl)imide: N<sub>2(2O2O1)3</sub>) mixed at near 1:1 mol ratio with NaFSI. The conductivities of these electrolytes range from 4.4 mScm<sup>−1</sup> for the smallest P<sub>111i4</sub>FSI:NaFSI system to 0.3 mScm<sup>−1</sup> for the N<sub>2(2O2O1)3</sub>FSI:NaFSI mixture at 50 °C. This difference in conductivity is interestingly not reflected in the cyclic voltammetry for Na/Na<sup>+</sup> where the maximum peak current density of 10 mAcm<sup>−2</sup> is surprisingly high for the poorly conductive N<sub>2(20201)3</sub>FSI:NaFSI solution (e.g. 17 mAcm<sup>−2</sup> for P<sub>111i4</sub>FSI:NaFSI). The overpotentials observed for Na symmetric cell cycling show very little differences after initial stabilising/conditioning for the three electrolytes being 50 mV for P<sub>111i4</sub>FSI:NaFSI and 100 mV for the others (at 0.1 mA cm<sup>−2</sup>). Also the Na<sup>+</sup> transport number is similar for the three electrolytes ranging from 0.33 to 0.37. Full cells were prepared with layered transition metal oxide cathodes: O3-Na<sub>2/3</sub>(Fe<sub>2/3</sub>Mn<sub>1/3</sub>)O<sub>2</sub>), P2-Na<sub>2/3</sub>(Fe<sub>2/3</sub>Mn<sub>1/3</sub>)O<sub>2</sub> and P2-Na<sub>2/3</sub>(Mn<sub>0.8</sub>Fe<sub>0.1</sub>Ti<sub>0.1</sub>)O<sub>2</sub>. While for the O3/P2-Na<sub>2/3</sub>(Fe<sub>2/3</sub>Mn<sub>1/3</sub>)O<sub>2</sub> structures the device performance is consistent with the electrolyte properties, with the P2-Na<sub>2/3</sub>(Mn<sub>0.8</sub>Fe<sub>0.1</sub>Ti<sub>0.1</sub>)O<sub>2</sub> cathode the N<sub>2(2O2O1)3</sub>FSI:NaFSI electrolyte cycling extremely well. The P<sub>111i4</sub>FSI and N<sub>2(2O2O1)3</sub>FSI yield almost equivalent specific capacities of approximately 180 and 160 mAhg<sup>−1</sup> respectively at C/10 rate.</p>