|Which materials to design better Li-based storage systems for a "Green Energy Society" |
Institute for Advanced Materials and Devices
|Jean-Marie TARASCON, Laboratoire de Réactivité et Chimie des Solides, Université de Picardie Jules Verne CNRS Amiens, France|
3:00 PM, Fiber Optics Auditorium
Li-ion batteries are strongly considered for powering the upcoming generations of HEVs and PHEVs, on condition that improvements can be achieved in terms of safety. Moreover, another important issue linked to wide implementation of the Li-ion technology for large scale application deals with materials resources and abundances as well as with materials synthesis and recycling processes, which will inflict a heavy energy cost. Notions of materials having minimum footprint made via eco-efficient processes must be integrated in our new research endeavours aiming towards the next generation of sustainable and “greener” Li-ion batteries.
The recent arrival of electrode materials based on minerals such as, for instance, LiFePO4 (tryphilite) is a forward but not sufficient step towards the long-term demand for materials sustainability. Further efforts are sorely needed. The eco-efficient synthesis, via hydrothermal/solvothermal processes using latent bases, structure directing templates or other bio-related approaches of LiFePO4 nanopowders will be presented. However, to secure sustainability organic electrodes appear as ideal candidates as they can provide environmental benefits: they can be synthesized via “Green Chemistry” from natural organic sources, are biodegradable and are not resource limited. We decided to take a fresh look at organic-based electrodes. Results of such a research considering sequentially Metal-Organic Frameworks (MOFs) electrodes and Li-based organic electrodes (LixCyOz) will be reported and discussed.
Host: Glenn Amatucci