Ceramic-Polymer solid electrolytes: a multiscale view of ion transport and electrodeposition in Li metal batteries
ChE-605 - Highlights in Energy Research seminar series
Ecole polytechnique fédérale de Lausanne
Solid-state Li metal batteries hold the promise to boost the performance of conventional Li-ion battery technologies; being capable of storing more energy as well as being safe from combustion. However, replacing the ubiquitous liquid electrolyte in a Li-ion battery, by a solid electrolyte is great scientific challenge. The poor contact and the highly resistive interfaces between the solid electrolyte and the solid electrodes are a major limitation for practical application.
This presentation will report on the development and prospective solutions of solid-state Li metal batteries. First, I will focus on Li7La3Zr2O12 (LLZO) garnet electrolyte , discussing the interfacial limits with Li metal anode leading to unexpected short-circuit and cell failure . Then, a promising alternative to full ceramic electrolytes will be proposed based on elastic polymer-ceramic composite membranes. This combination of hard-soft electrolyte materials is found to greatly enhance the interfacial stability and electrodeposition properties with Li metal anode, offering new opportunities for application in solid-state batteries.
 L. Buannic, B. Orayech, J. M. Lopez del Amo, J. Carrasco, N. A. Katcho, F. Aguesse, W.Manalastas, J.Kilner and A.Llordes. Chemistry of Materials, 29, 1769–1778 (2017).
 F. Aguesse, W. Manalastas, L. Buannic, J. M. Lopez del Amo, G.Singh, A. Llordés, and J. Kilner. ACS Applied Materials & Interfaces, 9 (4), 3808–3816, (2017).
- CIC Energigune, Solid Electrolyte Group, Vitoria, Spain Ikerbasque, Basque Foundation of Science, Bilbao, Spain
Anna Llordés Gil
Art der Veranstaltung: Vortrag/Konferenz