| 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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Grey, Cp
The Faraday Institution
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2024The effect of interface heterogeneity on zinc metal anode cyclability.
- 20233D Nanocomposite Thin Film Cathodes for Micro-Batteries with Enhanced High-Rate Electrochemical Performance over Planar Films
- 2022Effect of Lithiation upon the Shear Strength of NMC811 Single Crystals
- 2022Importance of Superstructure in Stabilizing Oxygen Redox in P3-Na 0.67 Li 0.2 Mn 0.8 O 2
- 2022Electrolyte reactivity at the charged Ni-rich cathode interface and degradation in Li-ion batteriescitations
- 2022Electrolyte Reactivity at the Charged Ni-Rich Cathode Interface and Degradation in Li-Ion Batteries.
- 2022Forced Disorder in the Solid Solution Li3P-Li2S: A New Class of Fully Reduced Solid Electrolytes for Lithium Metal Anodes.
- 2021Endogenous 17 O Dynamic Nuclear Polarization of Gd-Doped CeO 2 from 100 to 370 K
- 2021Stabilized tilted-octahedra halide perovskites inhibit local formation of performance-limiting phasescitations
- 2020Revealing the Structure and Oxygen Transport at Interfaces in Complex Oxide Heterostructures via ¹⁷O NMR Spectroscopy
- 2020Investigating the effect of a fluoroethylene carbonate additive on lithium deposition and the solid electrolyte interphase in lithium metal batteries using: In situ NMR spectroscopy
- 2020Establishing Ultralow Activation Energies for Lithium Transport in Garnet Electrolytes.
- 2020Establishing ultra-low activation energies for lithium transport in garnet electrolytes.citations
- 2018The use of strontium ferrite in chemical looping systemscitations
- 2018Interface Instability in LiFePO4–Li3+xP1–xSixO4 All-Solid-State Batteries
- 2018Crystal Structures, Local Atomic Environments, and Ion Diffusion Mechanisms of Scandium-Substituted Sodium Superionic Conductor (NASICON) Solid Electrolytescitations
- 2017Metal-Organic Nanosheets Formed via Defect-Mediated Transformation of a Hafnium Metal-Organic Frameworkcitations
- 2017How Strong Is the Hydrogen Bond in Hybrid Perovskites?citations
- 2017Structural Simplicity as a Restraint on the Structure of Amorphous Silicon
- 2017Investigating Sodium Storage Mechanisms in Tin Anodes: A Combined Pair Distribution Function Analysis, Density Functional Theory and Solid-State NMR Approach
- 2017Mg x Mn 2-x B 2 O 5 Pyroborates (2/3 ≤ x ≤ 4/3): High Capacity and High Rate Cathodes for Li-Ion Batteries
- 2014Three-dimensional characterization of electrodeposited lithium microstructures using synchrotron X-ray phase contrast imagingcitations
- 2013Lithiation of silicon via lithium Zintl-defect complexes from first principles
Places of action
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article
Establishing Ultralow Activation Energies for Lithium Transport in Garnet Electrolytes.
Abstract
Garnet-type structured lithium ion conducting ceramics represent a promising alternative to liquid-based electrolytes for all-solid-state batteries. However, their performance is limited by their polycrystalline nature and inherent inhomogeneous current distribution due to different ion dynamics at grains, grain boundaries, and interfaces. In this study, we use a combination of electrochemical impedance spectroscopy, distribution of relaxation time analysis, and solid-state nuclear magnetic resonance (NMR), in order to understand the role that bulk, grain boundary, and interfacial processes play in the ionic transport and electrochemical performance of garnet-based cells. Variable temperature impedance analysis reveals the lowest activation energy for Li transport in the bulk of the garnet electrolyte (0.15 eV), consistent with pulsed field gradient NMR spectroscopy measurements (0.14 eV). We also show a decrease in grain boundary activation energy at temperatures below 0 °C, that is followed by the total conductivity, suggesting that the bottleneck to ionic transport resides in the grain boundaries. We reveal that the grain boundary activation energy is heavily affected by its composition that, in turn, is mainly affected by the segregation of dopants and Li. We suggest that by controlling the grain boundary composition, it would be possible to pave the way toward targeted engineering of garnet-type electrolytes and ameliorate their electrochemical performance in order to enable their use in commercial devices.