DC06 - National Institute of Chemistry - Slovenia
Title: Interphases and interfaces in Li/S batteries in all solid-state polymer configurations
Objective:
DC6 will characterize and correlate the properties of single ion polymer electrolytes combined with either sulfur-based cathode or lithium metal anode. The specific objectives will be related to the study of mass and charge transfer between polymers and sulfur/lithium metal in order to study the evolution/degradation of the interfaces. A combined study using galvanostatic and potentiostatic electrochemical methods, EIS, FIB-SEM, and XPS will be designed in full cell configuration or symmetrical cells with a focus on the properties in the bulk and at the interfaces. Finally, a multilayer pouch cell will be prepared to confirm the scalability of the approach.
Expected results:
DC6 will obtain Li/S batteries with stable cycling and high capacity utilization (>500 cycles, >1000 mAh/g), high electrode loading (>2 mAh/cm2) and protected lithium metal anode capable of stripping and plating at a current density of 5 mA/cm2. Tailored functional SIPEs developed by DC1 (UCBL) and DC5 (LIST) and doped porous carbons (DC8, SU) will also be considered. Finally, DC6 will provide ~100 mAh prototype cells that will be thoroughly characterized to check the scalability of the process in collaboration with KIT and KEYS.
SUPERVISORS
