Solid Electrolytes

Solid Electrolytes

Ion dynamics and transport in solids are at the heart of multiple applications ranging from sensing to electrochemical energy storage, but also play an important role in degradation processes and materials failure. Solid electrolytes are for example critical components in all-solid-state batteries, which potentially offer higher safety, paired with higher power and energy densities compared to commercial lithium ion batteries based on liquid electrolytes. Our group has been active in developing new solid electrolytes for lithium and sodium solid-state batteries. We try to understand why and how ions move, and how we can influence their energy landscape and trajectories rationally by chemical design.

© Image courtesy of Verena Langowski (MPI for Solid State Research and Ludwig-Maximilians-Universität München)

Key Publications

How Certain Are the Reported Ionic Conductivities of Thiophosphate-Based Solid Electrolytes? An Interlaboratory Study
S. Ohno, T. Bernges, J. Buchheim, M. Duchardt, A.-K. Hatz, M.A. Kraft, H. Kwak, A.L. Santhosha, Z. Liu, N. Minafra, F. Tsuji, A. Sakuda, R. Schlem, S. Xiong, Z. Zhang, P. Adelhelm, H. Chen, A. Hayashi, Y. Seok Jung, B.V. Lotsch, B. Roling, N.M. Vargas-Barbosa, W.G. Zeier
ACS Energy Lett. 2020, 5, 910–915. Article

Finding the Right Blend: Interplay Between Structure and Sodium Ion Conductivity in the System Na5AlS4–Na4SiS4
S. Harm, A.-K. Hatz, C. Schneider, C. Hoefer, C. Hoch, B.V. Lotsch
Front. Chem. 2020, 8:90. Article

A Lesson learned from NMR: characterization and ionic conductivity of LGPS-like Li7SiPS8
S. Harm, A.-K. Hatz, I. Moudrakovski, R. Eger, A. Kuhn, C. Hoch, B.V. Lotsch
Chem. Mater. 2019, 31, 1280–1288. Article

Relevance of solid electrolytes for Li-based batteries: A realistic view
B.V. Lotsch, J. Maier
J. Electroceram. 2017, 38, 128141. Article

Li0.6[Li0.2Sn0.8S2] – A layered lithium superionic conductor
T. Holzmann, L. Schoop, M.N. Ali, I. Moudrakovski, G. Gregori, J. Maier, R.J. Cava, B.V. Lotsch
Energy Environ. Sci. 2016, 9, 2578–2585. Article

A new ultrafast superionic Li-conductor: Ion dynamics in Li11Si2PS12 and comparison with other tetragonal LGPS-type electrolytes
A. Kuhn, O. Gerbig, C. Zhu, F. Falkenberg, J. Maier, B.V. Lotsch
Phys. Chem. Chem. Phys. 2014, 16, 14669−14674. Article

Tetragonal Li10GeP2S12 and Li7GePS8 – exploring the Li ion dynamics in LGPS Li electrolytes
A. Kuhn, V. Duppel and B.V. Lotsch
Energy Environ. Sci. 2013, 6, 3548–3552. Article

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