courbe en fond

Former staff and alumni

Walid Dachraoui


  • PostDoc

Main Research Activities

Recent developments in in-situ liquid TEM opened a new area in the understanding of interface mechanisms during electrochemical cycling of Li-ion batteries such as the kinetics of lithiation, formation of SEI layer, structural accommodation, crystalline transformation and morphological evolution. The goal of this project is to further identify and study phenomena involved in batteries’ efficiency decay, which is mainly related to induced effects of exchange dynamics at electrode/electrolyte interfaces. Thus, he focus on the study of the mechanism of formation of the SEI layer during the first EC cycles and on the electrolyte’s evolution with different analytical TEM techniques in liquid medium. 

Operando Liquid-electrochemical TEM for Monitoring Growth and Dissolution Steps of NaO2 Cubes in Na-O2 Battery

Walid Dachraoui, Lukas Lutz, Lee. R. Johnson, Peter G. Bruce, Jean-Marie Tarascon, Alexis Grimaud, Arnaud Demortière

Microscopy and Microanalysis, 2019

In Situ Electron Diffraction using Liquid-Electrochemical TEM for Monitoring Structural Transformation in Single Crystals Of Cathode Materials for Li-Ion Batteries

Olesia M. Karakulina, Walid Dachraoui, Artem M. Abakumov, Joke Hadermann, Arnaud Demortière

Microscopy and Microanalysis, 2019

Preparation and characterization of mechanically alloyed AB3-type based material LaMg2Ni5Al4 and its solid-gaz hydrogen storage reaction

Hassen Jaafar, Luc Aymard, Walid Dachraoui, Arnaud Demortière, Mohieddine Abdellaoui

Journal of Solid State Chemistry, 2018

Operando Monitoring of the Solution-Mediated Discharge and Charge Processes in a Na–O2 Battery Using Liquid-Electrochemical Transmission Electron Microscopy

Lukas Lutz, Walid Dachraoui, Arnaud Demortière, Lee R. Johnson, Peter G. Bruce, Alexis Grimaud, and Jean-Marie Tarascon

Nano Letters, 2018

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