Daniela JOSEPETTI

Battery End-of-life Access Through Liquid Electrolyte Spectroscopy (BEATLES)

I am Daniela Josepetti, I am Brazilian and I am a Destiny Ph.D. fellow based in Montpellier, France, with my secondment in Graz, Austria. Currently, I am in the first year of my Ph.D., but I have been happily studying batteries for the last four years. The idea of my project is to create a catalytic path for the degradation of carbonate-based electrolytes and subsequently analyze it through operando ATR-FTIR and GC-MS techniques. For this, we are utilizing tin (revealed in literature to accelerate the electrolyte reduction) and enhancing its surface area by incorporating it into titania nanotubes. These nanotubes serve as an intriguing template due to the favorable optical transmittance in the infrared region of Titania and its resistance to the formation of solid electrolyte interface (SEI). The successful implementation of this setup will enable us to conduct an in-depth analysis of electrolyte degradation over an extended period, aiming to explore the end-of-life state of health, which has not been extensively studied. Furthermore, this main project has given rise to several other ideas, for which I am fortunate to receive support in their development. Being a part of DESTINY has been a highly rewarding experience for me. The program offers enriching courses and maintains a good organizational standard. As a result, I can genuinely perceive personal growth both as a researcher and as a specialist in battery technology!