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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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Best, Adam
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024Electrolyte Evolution: Unraveling Mechanisms and Enhancing Performance in Lithium-Oxygen Batteries
- 2021Long-Life Power Optimised Lithium-ion Energy Storage Device
- 2020In situ synchrotron XRD and sXAS studies on Li-S batteries with ionic-liquid and organic electrolytescitations
- 2020Spectroscopic Evidence of Surface Li-Depletion of Lithium Transition-Metal Phosphatescitations
- 2019The Australian Battery Landscape
- 2019Re-evaluation of experimental measurements for the validation of electronic band structure calculations for LiFePO4 and FePO4citations
- 2018From Lithium Metal to High Energy Batteries
- 2017Electrochemistry of Lithium in Ionic Liquids - Working With and Without a Solid Electrolyte Interphase
- 2016Optimising the concentration of LiNO3 additive in C4mpyr-TFSI electrolyte-based Li-S batterycitations
- 2015S/PPy composite cathodes for Li-S batteries prepared by facile in-situ 2-step electropolymerisation process
- 2012Development of a flexible, wearable and rechargeable battery
- 2012Development of a flexible, wearable and rechargeable battery
- 2010In situ NMR Observation of the Formation of Metallic Lithium Microstructures in Lithium Batteriescitations
- 2010Ionic Liquids with the Bis(fluorosulfonyl)imide (FSI) anion: Electrochemical properties and applications in battery technologycitations
Places of action
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article
In situ synchrotron XRD and sXAS studies on Li-S batteries with ionic-liquid and organic electrolytes
Abstract
Lithium-sulfur (Li-S) batteries are a promising technology capable of reaching high energy density of 500-700 Wh kg-1, however the practically achievable performance is still lower than this value. This hindrance can be attributed to a lack of understanding of the fundamental electrochemical processes during Li-S battery cycling, in particular the so-called redox shuttle effect which is due to the relatively high solubility of polysulfide intermediates in the electrolyte. Herein, the effects of LiNO3 as an additive as well as C4mpyr-based ionic liquids (ILs) in electrolyte formulations for Li-S cells are analysed using in situ X-ray powder diffraction (XRD) and ex situ soft X-ray absorption spectroscopy (sXAS) techniques. Whilst LiNO3 is known for its protective properties on the lithium anode in Li-S cells, our studies have provided further evidence for suppression of Li2S deposition when using LiNO3 as an additive, as well as affecting the solid electrolyte interphase (SEI) layer at a molecular level. Moreover, the detected sulfur species on the surface of the anode and cathode, after a few cycles are compared for IL and organic- based electrolytes.