One of the main research areas of the Rettenwander group is the design and development of new materials for energy applications that comprises the synthesis of ceramics (e.g., nanostructures, single crystals, polycrystals, thin films), polymers, and ceramic/polymer composites, their structural and electrochemical characterization as well as their implementation in advanced Li/Na/K/Mg-ion battery technologies. In particular, our group focuses on the key challenges currently hindering the ultimate commercial usage of solid-state batteries, such as Li-metal dendrite formation, and the lack of thermodynamic stability of most solid electrolytes either against Li metal or cathode materials, as well as on the development of contingency strategies to overcome those bottlenecks.

Research Highlights


Lowering the interfacial resistance in Li6.4La3Zr1.4Ta0.6O12 | poly(ethylene oxide) composite electrolytes

Cell Press Phys. Sci., 2020, in press.




The natural critical current density limit for Li7La3Zr2O12 garnets

J. Mater. Chem. A., 2020, 8, 15782-15788



On the dependence of ionic transport on crystal orientation in NaSICON-type solid electrolytes

J. Phys. Energy, 2020, 2, 035003.



Untangling Structure and Dynamics of Lithium-Rich Anti-Perovskites Envisaged as Solid Electrolytes for Batteries

Chem. Mater., 2018, 30, 8134-8144.



Priv.-Doz. Dr. Daniel Rettenwander
Director of the Christian Doppler Laboratory for Solid-State Batteries

Stremayrgasse 9, 8010 Graz, Austria
Tel.: +43 316 873 32356