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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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Sakamoto, Jeff
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Topics
Publications (9/9 displayed)
- 2024Operando Investigation on the Role of Densification and Chemo‐Mechanics on Solid‐State Cathodescitations
- 2023Current‐Dependent Lithium Metal Growth Modes in “Anode‐Free” Solid‐State Batteries at the Cu|LLZO Interfacecitations
- 2023Evaluating the Use of Critical Current Density Tests of Symmetric Lithium Transference Cells with Solid Electrolytescitations
- 2022Increasing the Pressure‐Free Stripping Capacity of the Lithium Metal Anode in Solid‐State‐Batteries by Carbon Nanotubescitations
- 2021Evolving contact mechanics and microstructure formation dynamics of the lithium metal-Li7La3Zr2O12 interfacecitations
- 2020Sodium plating from Na‐ β "‐alumina ceramics at room temperature, paving the way for fast‐charging all‐solid‐state batteriescitations
- 2016Elastic Properties of the Solid Electrolyte Li 7 La 3 Zr 2 O 12 (LLZO)citations
- 2016The Effect of Relative Density on the Mechanical Properties of Hot‐Pressed Cubic <scp><scp>Li</scp></scp><sub>7</sub><scp><scp>La</scp></scp><sub>3</sub><scp><scp>Zr</scp></scp><sub>2</sub><scp><scp>O</scp></scp><sub>12</sub>citations
- 2015Elastic Properties of the Solid Electrolyte Li7La3Zr2O12 (LLZO)citations
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article
Elastic Properties of the Solid Electrolyte Li7La3Zr2O12 (LLZO)
Abstract
The oxide known as LLZO, with nominal composition Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub>, is a promising solid electrolyte for Li-based batteries due to its high Li-ion conductivity and chemical stability with respect to lithium. Solid electrolytes may also enable the use of metallic Li anodes by serving as a physical barrier that suppresses dendrite initiation and propagation during cycling. Prior linear elasticity models of the Li electrode/solid electrolyte interface suggest that the stability of this interface is highly dependent on the elastic properties of the solid separator. For example, dendritic suppression is predicted to be enhanced as the electrolyte s shear modulus increases. In the present study a combination of first-principles calculations, acoustic impulse excitation measurements, and nanoindentation experiments are used to determine the elastic constants and moduli for highconductivity LLZO compositions based on Al and Ta doping. The calculated and measured isotropic shear moduli are in good agreement and fall within the range of 56-61 GPa. These values are an order of magnitude larger than that for Li metal and far exceed the minimum value ( 8.5 GPa) believed to be necessary to suppress dendrite initiation. These data suggest that LLZO exhibits sufficient stiffness to warrant additional development as a solid electrolyte for Li batteries.