| 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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Devaux, Didier
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2024In Situ Hybrid Solid-State Electrolytes for Lithium Battery Applicationscitations
- 2024Effective conductivity of composite polymer/ceramic electrolytes for all-solid-state batteries
- 2024PEO Electrolyte As Interlayer for Li Metal Battery Comprising an Halide Based Hybrid Electrolyte
- 2024Tuning ceramic surface to minimize the ionic resistance at the interface between PEO- and LATP-based ceramic electrolyte
- 2023Insight of ionic transport in solid-state polymer electrolyte for lithium-sulfur batteries
- 2023Hybrid polymer/ceramic membranes: Towards a new concept of electrolytic separator for all-solid-state Lithium metal batteries
- 2023Analysis of Limiting Processes of Power Performance Within Li-ion Batteries
- 2023Evolution of the Ionic Conductivity of Solid Polymer Electrolytes upon Elongation
- 2022Analysis of limiting Processes within Li-ion Batteries
- 2022Study of limiting factors of power performance within Li-ion batteries
- 2022Dense inorganic electrolyte particles as a lever to promote composite electrolyte conductivitycitations
- 2022Electrochemical Impedance Spectroscopy of PEO-LATP Model Multilayers: Ionic Charge Transport and Transfercitations
- 2021Tomography Imaging of Lithium Electrodeposits Using Neutron, Synchrotron X-ray, and Laboratory X-ray sources: A Comparisoncitations
- 2021In Situ Imaging Comparison of Lithium Electrodeposits By Neutron and X-Ray (Synchrotron and Laboratory) Tomographycitations
- 2020Effect of Electrode and Electrolyte Thicknesses on All-Solid-State Battery Performance Analyzed With the Sand Equationcitations
- 2020Fast Determination of the Limiting Ionic Diffusion Coefficient in Lithium Metal Polymer Batteries
- 2020X-Ray Microtomography Analysis of Li-Sulfur Batteries with a Block Copolymer Electrolyte
- 2020Quantification of the Local Topological Variations of Stripped and Plated Lithium Metal by X-ray Tomographycitations
- 2018Comparison of single-ion-conductor block-copolymer electrolytes with Polystyrene- TFSI and Polymethacrylate- TFSI structural blockscitations
- 2016Relationship between Conductivity, Ion Diffusion, and Transference Number in Perfluoropolyether Electrolytescitations
- 2016Structure and Ionic Conductivity of Polystyrene- block -poly(ethylene oxide) Electrolytes in the High Salt Concentration Limitcitations
- 2016Compliant glass–polymer hybrid single ion-conducting electrolytes for lithium batteriescitations
- 2015Failure Mode of Lithium Metal Batteries with a Block Copolymer Electrolyte Analyzed by X-Ray Microtomographycitations
- 2015Phase Behavior and Electrochemical Characterization of Blends of Perfluoropolyether, Poly(ethylene glycol), and a Lithium Saltcitations
- 2012Mechanism of ion transport in PEO/LiTFSI complexes: Effect of temperature, molecular weight and end groupscitations
Places of action
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article
Quantification of the Local Topological Variations of Stripped and Plated Lithium Metal by X-ray Tomography
Abstract
Lithium (Li) metal is the most promising negative electrode to be implemented in batteries for stationary and electric vehicle applications. For years, its use and subsequent industrialization were hampered because of the inhomogeneous Li + ion reduction upon recharge onto Li metal leading to dendrite growth. The use of solid polymer electrolyte is a solution to mitigate dendrite growth. Li reduction leads typically to dense Li deposits, but the Li stripping and plating process remain nonuniform with local current heterogeneities. A precise characterization of the behavior of these heterogeneities during cycling is then essential to move toward an optimized negative electrode. In this work, we have developed a characterization method based on X-ray tomography applied to model Li symmetric cells to quantify and spatially probe the Li stripping/plating processes. Ante-and postmortem cells are recut in smaller cells to allow a 1 μm voxel size resolution in a conventional laboratory scanner. The reconstructed cell volume is postprocessed to numerically reflatten the Li electrodes, allowing us a subsequent precise measurement of the electrode and electrolyte thicknesses and revealing local interface modifications. This in-depth analysis brings information about the location of heterogeneities and their impact on the electrode microstructure at both the electrode grains and grain boundaries. We show that the plating process (reduction) induces more pronounced heterogeneities compared to the stripping (oxidation) one. The existence of crosstalking between the electrodes is also highlighted. In addition, this simple methodology permits to finely retrieve and then surface map the local current density at both electrodes based on the local thickness change during the redox process.