Author
Alain Levasseur
Other affiliations: École Normale Supérieure, École nationale supérieure de chimie et de physique de Bordeaux, Centre national de la recherche scientifique
Bio: Alain Levasseur is an academic researcher from University of Bordeaux. The author has contributed to research in topics: Thin film & Lithium. The author has an hindex of 33, co-authored 133 publications receiving 5017 citations. Previous affiliations of Alain Levasseur include École Normale Supérieure & École nationale supérieure de chimie et de physique de Bordeaux.
Papers published on a yearly basis
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TL;DR: In this article, the results of a systematic XPS study, under high controlled conditions, of different basic oxides of transition metals, alkali and alkaline-earth metals are presented; the XPS data of some hydroxides and peroxides are also reported.
Abstract: The results of a systematic XPS study, under high controlled conditions, of different basic oxides of transition metals, alkali and alkaline-earth metals are presented; the XPS data of some hydroxides and peroxides are also reported. Variations of the O 1s binding energies are analysed and one point of interest is the large
binding energy scale obtained for O 1s peaks all associated with a ‘‘2−
’’ formal charge. Through extended
Huckel theory-tight binding (EHT-TB) calculations, attempts are made to rationalize the observed variations.
The results illustrate
the significant
differences
between real
charges on oxygen atoms in transition metal and alkaline-earth oxides.
1,653 citations
TL;DR: In this paper, thin films of titanium oxysulfides which could be used as positive electrode materials in microbatteries were analysed by XPS and the results showed the existence of a new type of titanium.
328 citations
TL;DR: In this article, X-ray photoelectron spectroscopy was used to study the evolution of LixCoO2+y thin-films at different stages of their cycle in experimental microbatteries.
224 citations
TL;DR: In this article, LiI-rich glasses obtained in the B2S3-Li2S-LiI system have been investigated and the Ionic conductivity is higher than 10−3Ω−1cm−1 at 25°C.
182 citations
TL;DR: LiPON films were deposited using radiofrequency magnetron sputtering in a pure N2 gas atmosphere and the influence of rf power, N2 pressure, target-substrate distance and target density on thin film composition and ionic conductivity was studied.
151 citations
Cited by
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TL;DR: Biesinger et al. as mentioned in this paper proposed a more consistent and effective approach to curve fitting based on a combination of standard spectra from quality reference samples, a survey of appropriate literature databases and/or a compilation of literature references and specific literature references where fitting procedures are available.
7,498 citations
TL;DR: In this article, the authors provide a background overview and discuss the state of the art, ion-transport mechanisms and fundamental properties of solid-state electrolyte materials of interest for energy storage applications.
Abstract: Solid-state electrolytes are attracting increasing interest for electrochemical energy storage technologies. In this Review, we provide a background overview and discuss the state of the art, ion-transport mechanisms and fundamental properties of solid-state electrolyte materials of interest for energy storage applications. We focus on recent advances in various classes of battery chemistries and systems that are enabled by solid electrolytes, including all-solid-state lithium-ion batteries and emerging solid-electrolyte lithium batteries that feature cathodes with liquid or gaseous active materials (for example, lithium–air, lithium–sulfur and lithium–bromine systems). A low-cost, safe, aqueous electrochemical energy storage concept with a ‘mediator-ion’ solid electrolyte is also discussed. Advanced battery systems based on solid electrolytes would revitalize the rechargeable battery field because of their safety, excellent stability, long cycle lives and low cost. However, great effort will be needed to implement solid-electrolyte batteries as viable energy storage systems. In this context, we discuss the main issues that must be addressed, such as achieving acceptable ionic conductivity, electrochemical stability and mechanical properties of the solid electrolytes, as well as a compatible electrolyte/electrode interface. This Review details recent advances in battery chemistries and systems enabled by solid electrolytes, including all-solid-state lithium-ion, lithium–air, lithium–sulfur and lithium–bromine batteries, as well as an aqueous battery concept with a mediator-ion solid electrolyte.
2,749 citations
2,643 citations
TL;DR: In this article, the results of a systematic XPS study, under high controlled conditions, of different basic oxides of transition metals, alkali and alkaline-earth metals are presented; the XPS data of some hydroxides and peroxides are also reported.
Abstract: The results of a systematic XPS study, under high controlled conditions, of different basic oxides of transition metals, alkali and alkaline-earth metals are presented; the XPS data of some hydroxides and peroxides are also reported. Variations of the O 1s binding energies are analysed and one point of interest is the large
binding energy scale obtained for O 1s peaks all associated with a ‘‘2−
’’ formal charge. Through extended
Huckel theory-tight binding (EHT-TB) calculations, attempts are made to rationalize the observed variations.
The results illustrate
the significant
differences
between real
charges on oxygen atoms in transition metal and alkaline-earth oxides.
1,653 citations
TL;DR: A comprehensive survey of conduction phenomena in all components of a Li-ion cell incorporating theoretical, experimental, and simulation studies is presented in this paper, where the critical results, issues and challenges with respect to ionic and electronic conduction in the cathode, anode and electrolyte are discussed.
1,394 citations