15. Oktober 2018, 07:30 Uhr | Andreas Pfeffer
Felix Walther (left) and Dr. Saneyuki Ohno working on the 3D analysis of a solid state battery at the Physical-Chemical Institute of the Justus-Liebig-University Giessen.
In the competence cluster »FestBatt« (»SolidBatt«) 14 scientific institutions are working on future e-mobility with long ranges: Large storage capacities, short charging times, and no flammable liquid electrolytes. The German Federal Ministry of Education and Research (BMBF) is funding the research.
The concept of the solid-state battery is becoming increasingly important. Solid-state batteries do not require flammable liquid electrolytes, have a higher energy density than the lithium-ion batteries commonly used today, and enable shorter charging times. To further develop both material and process technology, the German Federal Ministry of Education and Research (BMBF) has been funding the »FestBatt« competence cluster since September 2018 with a total of around 16 million euros over three years. The focus of the research is the determination of which materials can be used for solid-state batteries, the analysis of the materials’ properties, and finding viable manufacturing techniques. A total of 14 scientific institutions are involved: Universities, institutes of the Helmholtz Association and institutes of the Fraunhofer-Gesellschaft. The competence cluster is coordinated by the Center for Materials Research (ZfM) of the Justus-Liebig-University Giessen (JLU).
The competence cluster »FestBatt« consists of five collaborative projects:
The goals of the first project phase include the production of stable and high-quality solid electrolytes and their electrochemical characterization. The development of solid state batteries based on electrolytes is the focus of further work.
»Developing materials for energy conversion, storage, and conservation is one of the most important fields of work in materials research internationally - not least because of the enormous social challenges posed by anthropogenic climate change,« says Prof. Dr. Joybrato Mukherjee, President of JLU.
In addition to coordinating the cluster, the Giessen researchers are also leading the work on solid state batteries based on special solid electrolytes (lithium thiophosphates), which have especially favorable properties. Prof. Jürgen Janek's research group (JLU) will make further contributions to a method platform for the characterization of electrodes in solid state batteries. Here, too, the Giessen scientists have already contributed to the elucidation of electrode kinetics.
Prof. Dr. Kerstin Volz's research group at the Scientific Centre for Material Sciences (WZMW) and the Physics Department of the University of Marburg are also involved in the methods platform. She characterizes the materials used in solid-state batteries using state-of-the-art electron microscopic methods.