Veranstaltung

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

Do, 03.05.2018, 10:30 - 11:30

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 [1], discussing the interfacial limits with Li metal anode leading to unexpected short-circuit and cell failure [2]. 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.
 
[1] 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).
[2] 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).

Weitere Informationen

Referenten

  • CIC Energigune, Solid Electrolyte Group, Vitoria, Spain Ikerbasque, Basque Foundation of Science, Bilbao, Spain
    Anna Llordés Gil

Veranstalter

Rubrik

Exakte und Naturwissenschaften

Art der Veranstaltung: Vortrag/Konferenz

Zielpublikum: Fachleute

Veranstaltungsort

EPFL Valais Wallis - Conference Room : Zeuzier

EPFL Valais Wallis
Rue de l'Industrie 17
Case postale 440
1951 Sion
Telefon +41 (0) 21 695 82 00
http://valais.epfl.ch

Geografische Lage: Im Tal

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