Le Dr. Zhongfan JIA, Pr. associé à Flinders University en Australie donnera un séminaire le lundi 12 juin 2023 à 11h00 à l’Auditorium intitulé :
Design Radical Polymers for sustainable energy storage
The rapid advent of portable and flexible devices has spurred major advancements in flexible energy storage for seamless integration. It thus requires new lightweight, easily processed, mouldable, and flexible materials. Unfortunately, traditional metal and inorganic materials could not fulfil all the requirements. In addition, the ever-increased consumption of metal-based batteries has led to a sustainability concern, such as the depletion of rare metal resources and potential environmental and health impacts – if not properly recycled. Batteries made from organic redox polymers represent a promising and viable solution to many issues, particularly in the production of next-generation flexible energy storage systems.
Nitroxide radical polymers (NRPs) are some of the most promising redox polymers available, providing corresponding batteries with high voltage, fast charging and long cyclability.1-3 Despite the attractive properties of NRPs as active electrode materials, these polymers have limited implementation in battery-powered electronic devices or large-scale energy storage. Our group have developed a range of synthetic strategies to improve the battery performance, including voltage output,4-5 cycling stability,6 capacity,7 and applications in different battery systems.
1. Janoschka, T.; Hager, M. D.; Schubert, U. S., Powering up the Future: Radical Polymers for Battery Applications. Adv. Mater. 2012, 24 (48), 6397-6409.
2. Wang, S.; Easley, A. D.; Lutkenhaus, J. L., 100th Anniversary of Macromolecular Science Viewpoint: Fundamentals for the Future of Macromolecular Nitroxide Radicals. ACS Macro Lett. 2020, 9 (3), 358-370.
3. Xie, Y.; Zhang, K.; Yamauchi, Y.; Oyaizu, K.; Jia, Z., Nitroxide radical polymers for emerging plastic energy storage and organic electronics: fundamentals, materials, and applications. Mater. Horiz. 2021, 8 (3), 803-829.
4. Zhang, K.; Noble, B. B.; Mater, A. C.; Monteiro, M. J.; Coote, M. L.; Jia, Z., Effect of Heteroatom and Functionality Substitution on the Oxidation Potential of Cyclic Nitroxide Radicals: Role of Electrostatics in Electrochemistry. Phys. Chem. Chem. Phys. 2018, 20 (4), 2606-2614.
5. Jiang, S.; Li, W.; Xie, Y.; Yan, X.; Zhang, K.; Jia, Z., An All-Organic battery with 2.8 V output voltage. Chem. Eng. J. 2022, 434.
6. Hu, Y. X.; Zhang, K.; Hu, H.; Wang, S. C.; Ye, D. L.; Monteiro, M. J.; Jia, Z. F.; Wang, L. Z., Molecular-level anchoring of polymer cathodes on carbon nanotubes towards rapid-rate and long-cycle sodium-ion storage. Mater. Chem. Front. 2018, 2 (10), 1805-1810.
7. Zhang, K.; Xie, Y.; Noble, B. B.; Monteiro, M. J.; Lutkenhaus, J. L.; Oyaizu, K.; Jia, Z. F., Unravelling kinetic and mass transport effects on two-electron storage in radical polymer batteries. J. Mater. Chem. A 2021, 9 (22), 13071-13079.