Research group Prof. Dr. Jürgen Janek
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- Recent Publications
Physicochemical Concepts of the Lithium Metal Anode in Solid-State Batteries
T. Krauskopf, F. H. Richter, W. G. Zeier, and J. Janek, Chem. Rev. 120 (2020) 7745; find paper here
On the Influence of Carbon Additives on the Decomposition Pathways in Cathodes of Lithium Thiophosphate-based All-Solid-State Batteries
F. Walther, S. Randau, Y. Schneider, J. Sann, M. Rohnke, F. H. Richter, W. G. Zeier, and J. Janek, Chem. Mater. 32 (2020) 6123; find paper here
The Fast Charge Transfer Kinetics of the Lithium Metal Anode on the Garnet‐Type Solid Electrolyte Li6.25Al0.25La3Zr2O12
T. Krauskopf, B. Mogwitz, H. Hartmann, D. K. Singh, W. G. Zeier, and J. Janek, Adv. Energy Mater. 10 (2020) 2000945; find paper here
Importance of the Spin–Orbit Interaction for a Consistent Theoretical Description of Small Polarons in Pr-Doped CeO2
K. Michel, T. S. Bjørheim, T. Nordby, J. Janek, and M. T. Elm, J. Phys. Chem. C 124 (2020) 15831; find paper here
Influence of NCM Particle Cracking on Kinetics of Lithium-Ion Batteries with Liquid or Solid Electrolyte
R. Ruess, S. Schweidler, H. Hemmelmann, G. Conforto, A. Bielefeld, D. A. Weber, J. Sann, M. T. Elm, and J. Janek, J. Electrochem. Soc. 167 (2020) 100532; find paper here
- Picture of the month - August 2019
Here you can find alternating insights into our research group. Enlarged versions of all published pictures can be found here.
Atomic Force Microscopy (AFM) is a method of characterizing a sample surface by passing a tip close to the surface to be examined. By measuring the atomic forces between the tip and the surface by means of the deflection of the tip, it is possible to obtain information about the topography of the surface or to determine the magnetic and chemical properties of the surface. The picture on the left shows the topography of a cathode for lithium-ion batteries investigated by AFM, in which as active material secondary particles of Li(Ni,Co,Mn)O2 with a diameter of a few micrometers are embedded in carbon. In the right image, an electrically conductive tip was used during the AFM measurement to examine the electrical conductivity of the cathode at the surface. Clearly recognizable is the impact of carbon as conductive additive, since an electrical current is measured mainly in the region, where carbon is found. (Picture submitted by Miguel Wiche and Matthias Elm).
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