Prof. Philippe Poizot will give a talk on "The rise of organic electrode materials for more sustainable rechargeable batteries".
All are welcomed to join. Please register here (contact form) if you wish to attend the lecture.

Speaker : Prof. Philippe Poizot (Professor in Chemistry and Electrochemistry at Nantes University, Nantes, France)

As for further information on his research project, please visit the website below:
POIZOT Philippe (cnrs-imn.fr)

Abstract

Li-ion batteries (LIBs) appear nowadays as flagship technology able to power an increasing range of applications starting from small portable electronic devices to advanced electric vehicles. Over the past 25 years, the discoveries of new metal-based host structures coupled with substantial technical developments have considerably improved their electrochemical performance, particularly in terms of energy density. Nevertheless, to further promote electrochemical storage systems while limiting the demand on metal-based raw materials, one possible parallel research to inorganic-based batteries consists in developing organic electrode materials. Indeed, organic systems exhibit several advantages such as chemical structures composed of quite naturally abundant elements (e.g., C, H, O, N or S) and a great richness in terms of chemical designs. For a long time, this family of redox-active materials has been disregarded mainly due to stability issues but progress has been made demonstrating that organics undeniably exhibit considerable assets. Great achievements have already been realized especially with organic radical batteries (ORBs). However, simultaneously achieving high energy/power density and high cyclability in a fully integrated organic Li-ion cell is still challenging. For the past few years, our group has been revisiting selected organic structures containing pi-conjugated enolate/C=O-based moieties in order to identify robust organic electrode structures reacting at both high and low potentials vs. Li. This contribution will be an opportunity to present some interesting organic materials showing reversible electrochemical activities in the solid state as well as recent advances in terms of poorly soluble organic cathode materials capable of being reversibly charged at a high voltage.