ANR NANOLIT

Dates:
October 2021 – April 2025

Project coordinator:
Nicolas DUPRE (ST2E team)

Partner laboratories :

• LIST (Luxembourg)
• CEA – LITEN Innovation Laboratory for New Energy Technologies and Nanomaterials
• Umicore Umicore NV / Corporate Research & Development

IMN staff involved:
Dominique GUYOMARD, Bernard LESTRIEZ, Patrick SOUDAN

The NanoLit project aims to develop a methodology based on lithium isotope tracing, combining advanced microscopy and spectroscopy techniques. The aim is to gain a better understanding of lithium mobility in both SEI and electrode materials, and to study its trapping through detailed description at different scales. The dynamics of lithium transport at interfaces will be characterized in the case of model systems, silicon or silicon-graphite half-cells. Subsequently, the impact of pre-lithiation on the evolution of interfaces and electrochemical performance, linked to Li transport properties, will be assessed for complete silicon/NMC cells. The underlying aim is to understand and be able to describe the transport properties between electrodes and electrolyte, in order to better control these phenomena and acquire the knowledge needed to develop high-performance batteries.