| 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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Danner, Timo
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024Lithium Redistribution Mechanism within Silicon-Graphite Electrodes: Multi-Method Approach and Method Validationcitations
- 2024Influence of Electrode Structuring Techniques on the Performance of All‐Solid‐State Batteriescitations
- 2024Lithiophilic interlayer driven 'bottom-up' metal infilling in high current density Li-metal anodescitations
- 2024Strategies to Spatially Guide Li Deposition in Porous Electrodes for High-Performance Lithium Metal Batteries
- 2024Synergistic Enhancement of Mechanical and Electrochemical Properties in Grafted Polymer/Oxide Hybrid Electrolytescitations
- 2024Material parameters affecting Li plating in Si/graphite composite electrodescitations
- 2023Effect of Particle Size and Pressure on the Transport Properties of the Fast Ion Conductor t-Li7SiPS8citations
- 2023Optimizing the Composite Cathode Microstructure in All‐Solid‐State Batteries by Structure‐Resolved Simulations
- 2022Effect of Particle Size and Pressure on the Transport Properties of the Fast Ion Conductor t-Li7SiPS8
- 2020Investigating the Nucleation of Lithium Deposits in Polycrystalline Solid Electrolytes
- 2020Mechanistic details of the spontaneous intercalation of Li metal into graphite electrodem
- 2019The importance of passive materials in Li-Ion battery electrodes
- 2012A Flexible Framework for Modeling Multiple Solid, Liquid and Gaseous Phases in Batteries and Fuel Cellscitations
Places of action
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article
Effect of Particle Size and Pressure on the Transport Properties of the Fast Ion Conductor t-Li7SiPS8
Abstract
<jats:p>All-solid-state batteries promise higher energy and power densities as well as increased safety compared to lithium ion batteries, by using non-flammable solid electrolytes and metallic lithium as the anode. As the liquid electrolyte is replaced by a solid electrolyte, ensuring permanent and close contact between the various components as well as between the individual particles is key for the long-term operation of a solid-state cell. Currently, there are few studies on how a solid-state electrolyte behaves when compressed by external pressure. Here we present a study in which the compression mechanics and ionic conductivity evolution of the fast solid-state conductor Li7SiPS8 were investigated under pressure on two samples with different particle sizes. In operando electrochemical impedance spectroscopy under pressure allows the determination of the activation volume of Li7SiPS8. In addition to the experiments under pressure, we show that the determined ionic conductivity additionally depends on the contact pressure. Furthermore, we simulate pelletizing using the discrete element method followed by finite volume analysis, where the effect of the pressure dependent microstructure can be distinguished from the atomistic effect of the activation volume. We conclude not only that the pelletizing pressure is an important parameter for describing the ionic conductivity of a solid, but also the particle size and morphology as well as the contact pressure during the measurement affect the impedance of a solid tablet. Furthermore, the relative density of a tablet is a weaker descriptor for the sample's impedance, compared to the particle size distribution.</jats:p>