Born in Paris in 1998, Rémy Lecordier has always been interested in sciences and technologies. When he got his high school diploma in 2016, he decided to do an associate degree in Instrumentations and Measurements in Marseille. During these two years, he discovered many subjects but one was his favorite: material sciences. In 2018, he did an internship in the Physic Institute of Sao Carlos in Brazil. Rémy studied TiO2 nanotubes and SnO2 applied as gas sensors, supervised by Dr. Renato V. Goncalves. With regards to synthesis, he has experience making anodization and sputtering methods as direct current (DC) and radio frequency (RF). In the end of 2018, Rémy studied in Marseille for a third-year degree in materials for electronics and energy in order to complete his knowledge in materials sciences. In February of 2021, Rémy joined the group of Advance Electrode Materials at CIC energiGUNE as an intern supervised by D. Gene Nolis and D. Montserrat Galceran. His project was to synthetize and characterize Na3MnXFe1-XCo3PO4 as a potential candidate cathode material for SIBs. He used several techniques such as structural (XRD), morphological (SEM, mastersizer), spectroscopic (raman, FTIR), thermal (STA-MS), electrochemical and advanced (XANES) characterizations. After the internship, Rémy obtained his master´s degree in Nanosciences and Nanotechnologies to start his PhD in CIC energiGUNE. It will be focused on the study of the kinetics and redox reactions of the cathode material in SIBs, in order to predict their performance using the studied materials.