Main Research Activities
This Ph.D. focuses on the high-voltage spinel LiNi0.5Mn1.5O4 (LNMO) used as positive electrode material for Li-ion batteries. Our goal is to correlate the structural information to electrochemical performance at the primary particle scale. Thus, various LNMO samples presenting different morphologies will be synthesized and characterized by diffraction (X-ray and neutrons) and spectroscopy techniques (NMR, Raman), and X-ray absorption spectroscopy at large-scale facilities. The (de)lithiation mechanisms will be studied by scanning electron microscopy coupled with precession (Astar System, 4D-STEM), providing information on the local crystalline structure with spatial resolution. Supervisors : Dr. Laurence Croguennec (ICMCB) Dr. Arnaud Demortière (LRCS), Dr. Jacob Olchowka (ICMCB), Prof. Christian Masquelier (LRCS), Dr. François Weill (ICMCB)Academic Training
Master Chimie et Sciences des Matériaux pour l’Energie et le Développement Durable (Université de Montpellier, 2020)
Professional skills
Running Projects
ANR DestiNa-ion Operando (2020-2023)
LRCS, ICMCB,ESRF,SIMAP
Identification of degree of ordering in spinel LiNi0.5Mn1.5O4 through NMR and Raman spectroscopies supported by theoretical calculations
Gozde Oney, Jon Serrano Sevillano, Mouna Ben Yahia, Jacob Olchowka, Emmanuelle Suard, François Weill, Arnaud Demortière, Montse Casas Cabanas, Laurence Croguennec, Dany Carlier
Energy Storage Materials, 2024
Improved ACOM pattern matching in 4D-STEM through adaptive sub-pixel peak detection and image reconstruction
Nicolas Folastre, Junhao Cao, Gozde Oney, Sunkyu Park, Arash Jamali, Christian Masquelier, Laurence Croguennec, Muriel Veron, Edgar F. Rauch & Arnaud Demortière
Scientific Reports, 2024
