Irreversible reaCtivity In complex electRoChemical systEms (CIRCE)
| Componente | Categoria |
|---|---|
| Domenico Stranges | Componenti strutturati del gruppo di ricerca |
| Giorgia Greco | Dottorando/Assegnista/Specializzando componente non strutturato del gruppo di ricerca |
The CIRCE project focuses on failure mechanisms occurring in high capacity batteries with aprotic electrolytes. The project will last 24 months and will imply the cooperation of three permanent Sapienza Staff (Sergio Brutti, Camillo La Mesa and Domenico Stranges), one non-permanent post-doc (Giorgia Greco) and one PhD student (Mariarosaria Tuccillo)
The main goal of the project is to study the fundamental chemical mechanisms underneath the irreversible degradation upon abuse of the battery constituents (i.e. electrodes, electrolytes) leading to gas release.
The project tackles two closely interacting activities that address:
(a) the fundamental understanding of thermal and photochemical degradation reacions of aprotic electrolytes/solvents
(b) the interplay between solid consitutents of batteries (electrodes, separators, countercollectors, cages) and the liquid aprotic electrolyte in abuse conditions.
In summary this project focuses on the study of the parasitic chemistry activated by thermal/electrochemical abuse leading to gas release in high capacity batteries with aprotic electrolytes. We adopt a bottom-up approach starting from the unexplored analysis of the thermal and photochemical degradation of electrodes/electrolytes to rationalize the complexity of the gas release reactions in full LIBs under abuse conditions. This fundamental knowledge will pave the way for the identification of mitigation strategies to reduce flammability and toxic gas release.