| 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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Marcoen, Kristof
Vrije Universiteit Brussel
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (33/33 displayed)
- 2024Molecular Layer Deposition of Zeolitic Imidazolate Framework-8 Filmscitations
- 2024Application of operando ORP-EIS for the in-situ monitoring of acid anion incorporation during anodizingcitations
- 2024Effect of heat treatment on the microstructure and pitting corrosion behavior of 316L stainless steel fabricated by different additive manufacturing methods (L-PBF versus L-DED): Comparative investigation exploring the role of microstructural features on passivitycitations
- 2023Revealing the Role of Electrolyte Salt Decomposition in the Structural Breakdown of LiNi0.5Mn1.5O4citations
- 2023Identification of carbon‐containing phases in electrodeposited hard Fe–C coatings with intentionally codeposited carbon
- 2023Molecular Layer Deposition of Zeolitic Imidazolate Framework-8 Filmscitations
- 2023Molecular Layer Deposition of Zeolitic Imidazolate Framework-8 Filmscitations
- 2023Molecular Layer Deposition of Zeolitic Imidazolate Framework-8 Filmscitations
- 2023Identification of carbon-containing phases in electrodeposited hard Fe–C coatings with intentionally codeposited carbon
- 2023Investigation of hybrid Zr-aminosilane treatment formation on zinc substrate and comparison to advanced high strength stainless steelcitations
- 2022Electrochemical codeposition of copper-antimony and interactions with electrolyte additives: towards the use of electronic waste for sustainable copper electrometallurgycitations
- 2022Unraveling the mechanism of the conversion treatment on Advanced High Strength Stainless Steels (AHSSS)citations
- 2022Electrochemical codeposition of arsenic from acidic copper sulfate baths : the implications for sustainable copper electrometallurgycitations
- 2022Unraveling the formation mechanism of hybrid Zr conversion coating on advanced high strength stainless steelscitations
- 2021A study of the interfacial chemistry between polymeric methylene diphenyl di-isocyanate and a Fe-Cr alloycitations
- 2021Electrochemical codeposition of arsenic from acidic copper sulfate baths: the implications for sustainable copper electrometallurgycitations
- 2021Effect of Sr Addition to a Modified AA3003 on Microstructural and Corrosion Propertiescitations
- 2021Effect of Sr Addition to a Modified AA3003 on Microstructural and Corrosion Propertiescitations
- 2020Molecular Characterization of Bonding Interactions at the Buried Steel Oxide-Aminopropyl Triethoxysilane Interface Accessed by Ar Cluster Sputteringcitations
- 2020ToF-SIMS characterization of the interfacial molecular chemistry in metal (active) corrosion protection systems based on organic coatings
- 2020Effect of excess hydrogen bond donors on the electrode-electrolyte interface between choline chloride-ethylene glycol based solvents and coppecitations
- 2020Integrated cleanroom process for the vapor-phase deposition of large-area zeolitic imidazolate framework thin filmscitations
- 2020Molecular Characterization of Multiple Bonding Interactions at the Steel Oxide - Aminopropyl triethoxysilane Interface by ToF-SIMScitations
- 2020Molecular Characterization of Multiple Bonding Interactions at the Steel Oxide-Aminopropyl triethoxysilane Interface by ToF-SIMScitations
- 2019Electrode-electrolyte interactions in choline chloride ethylene glycol based solvents and their effect on the electrodeposition of ironcitations
- 2019Dual Role of Lithium on the Structure and Self-Healing Ability of PMMA-Silica Coatings on AA7075 Alloycitations
- 2019The chemical throwing power of lithium-based inhibitors from organic coatings on AA2024-T3citations
- 2019Integrated Cleanroom Process for the Vapor-Phase Deposition of Large-Area Zeolitic Imidazolate Framework Thin Filmscitations
- 2019An integrated cleanroom process for the vapor-phase deposition of large-area zeolitic imidazolate framework thin filmscitations
- 2018Compositional study of a corrosion protective layer formed by leachable lithium salts in a coating defect on AA2024-T3 aluminium alloyscitations
- 2018Fluoride-Induced Interfacial Adhesion Loss of Nanoporous Anodic Aluminium Oxide Templates in Aerospace Structurescitations
- 2017Unravelling the chemical influence of water on the PMMA/aluminum oxide hybrid interface in situcitations
- 2017Atomic Layer Deposition of Ruthenium Thin Films from (Ethylbenzyl)(1-Ethyl-1,4-cyclohexadienyl) Ru: Process Characteristics, Surface Chemistry, and Film Propertiescitations
Places of action
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article
Revealing the Role of Electrolyte Salt Decomposition in the Structural Breakdown of LiNi0.5Mn1.5O4
Abstract
<p>Spinel LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O<sub>4</sub> (LNMO) is one of the most promising cobalt-free high-performance electrodes for boosting energy density in future Li-ion batteries and microbatteries. However, its high operating potential of over 4.7 V vs Li<sup>+</sup>/Li leads to undesired secondary reactions derived from the oxidative electrolyte decomposition that cause active material dissolution and structural degradation. Even though great effort has been put into understanding the decomposition products in the liquid electrolyte, the effects that the electrolyte decomposition has on the electrode integrity are often overlooked. Sputtered thin film electrodes with simplified geometries and composition are ideal model systems to deconvolute the effects and isolate the influencing factors. The influence of electrolyte salt on the electrochemical performance and chemical stability is analyzed here on thin film LNMO employing spectroscopic and microscopic tools. The negative effects of electrolyte decomposition on cyclability and electrode composition are noticeable when using LiPF<sub>6</sub> salt, but the degradation with an LiClO<sub>4</sub>-based electrolyte was found to be more severe. LiClO<sub>4</sub> decomposing in the operating potential range is associated with the generation of Cl compounds that etch the spinel oxide dissolving transition metal, diminishing the available intercalating active material and triggering the electrode breakdown. Acidification of the electrolyte occurs during repeated cycling, and the proton source is attributed to the hydrogen abstraction from the solvent oxidation induced by the high operating voltages. Our results suggest that electrolyte decomposition could trigger significant proton intercalation and surface reconstruction in the electrode, ultimately causing its electrochemical and structural breakdown.</p>