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

Ecole polytechnique fédérale de Lausanne
EPFL Valais Wallis
Rue de l'Industrie 17
Case postale 440
1951 Sion

Telefon +41 (0) 21 695 82 00
http://valais.epfl.ch

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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