%0 Journal Article %T Effects of the Electrolyte Concentration on the Nature of the Solid Electrolyte Interphase of a Lithium Metal Electrode %+ Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM) %+ Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM) %+ Réseau sur le stockage électrochimique de l'énergie (RS2E) %A Touja, Justine %A Salembier Peyrovi, Parnian %A Tison, Yann %A Martinez, Hervé %A Gimello, Olinda %A Louvain, Nicolas %A Stievano, Lorenzo %A Monconduit, L. %< avec comité de lecture %@ 2194-4296 %J Energy Technology %I Wiley %V 11 %N 1 %P 2201037 %8 2023 %D 2023 %R 10.1002/ente.202201037 %K electrolytes %K lithium anodes %K lithium batteries %K metal anodes %K solid electrolyte interphase %Z Chemical Sciences/Material chemistry %Z Chemical Sciences/Analytical chemistry %Z Chemical Sciences/Polymers %Z Chemical Sciences/Theoretical and/or physical chemistryJournal articles %X The need of more powerful systems with higher energy density raises a lot of interest in lithium metal batteries (LMBs). As LMBs suffer from safety concerns due to the dendrite growth, several strategies have been studied to limit this growth. Using a highly concentrated electrolyte allows a homogeneous lithium plating that delays the formation of dendrites. Herein, different techniques are used in order to better understand the beneficial role of the salt concentration in the lithium plating/stripping. Operando Fourier transform infrared spectroscopy highlights the better reversibility of the Li+ solvation in the 5 M lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) in 1,2-dioxolane/1,3-dimethoxyethane electrolyte in comparison with the 1 M electrolyte. This obviously leads to different electrolyte decompositions during the lithium plating/stripping and changes the nature of the electrode solid electrolyte interphase (SEI) depending on the salt concentration. Gas chromatography coupled with mass spectrometry as well as X-ray photoelectron spectroscopy confirms that with the 5 M LiTFSI electrolyte the salt is preferentially reduced during the plating/stripping, leading to a more inorganic SEI on the lithium metal electrode. %G English %2 https://univ-pau.hal.science/hal-03884752/document %2 https://univ-pau.hal.science/hal-03884752/file/Energy%20Tech%20-%202022%20-%20Touja%20-%20Effects%20of%20the%20Electrolyte%20Concentration%20on%20the%20Nature%20of%20the%20Solid%20Electrolyte%20Interphase%20of.pdf %L hal-03884752 %U https://univ-pau.hal.science/hal-03884752 %~ ENSCP %~ UNIV-TLSE3 %~ UGA %~ CNRS %~ UNIV-AMU %~ CDF %~ UNIV-PAU %~ ENSC-MONTPELLIER %~ ENSC-PARIS %~ INPG %~ ICG %~ PARISTECH %~ IPREM %~ INC-CNRS %~ PSL %~ CHIMIE %~ UNIV-MONTPELLIER %~ IPREM-PCM %~ SITE-ALSACE %~ SORBONNE-UNIVERSITE %~ SORBONNE-UNIV %~ ENSCP-PSL %~ CDF-PSL %~ UGA-EPE %~ SU-TI %~ ANR %~ UPPA-OA %~ ALLIANCE-SU %~ TOULOUSE-INP %~ NANTES-UNIVERSITE %~ NANTES-UNIV %~ UNIV-UT3 %~ UT3-INP %~ UT3-TOULOUSEINP %~ UM-2015-2021 %~ UM-EPE