Research group Prof. Dr. Jürgen Janek
- Welcome to our homepage!
- Recent Publications
Towards zinc-oxygen batteries with enhanced cycling stability: The benefit of anion-exchange ionomer for zinc sponge anodes
D. Stock, S. Dongmo, K. Miyazaki, T. Abe, J. Janek, D. Schröder, J. Power Sources 395 (2018) 195-204; find paper here
Degradation Mechanisms at the Li10GeP2S12/LiCoO2 Cathode Interface in an All-Solid-State Lithium-Ion Battery
W. Zhang, F. H. Richter, S. P. Culver, T. Leichtweiss, J. G. Lozano, C. Dietrich, P. G. Bruce, W. G. Zeier, J. Janek, ACS Appl. Mater. Interfaces (2018); find paper here
Structural analysis and electrical characterization of cation-substituted lithium ion conductors Li1-xTi1-xMxOPO4 (M = Nb, Ta, Sb)
P. Hofmann, J. Ariai, A. Zaichenko, J. Janek, D. Mollenhauer, W. G. Zeier, J. Solid State Ionics 319C (2018) 170-179; find paper here
Homogeneous Coating with an Anion-Exchange Ionomer Improves the Cycling Stability of Secondary Batteries with Zinc Anodes
D. Stock, S. Dongmo, F. Walther, J. Sann, J. Janek , and D. Schröder, ACS Appl. Mater. Interfaces, 2018; find paper here
Synthesis and characterization of polyphosphazene electrolytes including cyclic ether side groups
C. Fiedler, B. Luerssen, B. Lucht, J. Janek, J. Power Sources 384 (2018) 165-171; find paper here
- Picture of the month - July 2018
Here you can find alternating insights into our research group. Enlarged versions of all published pictures can be found here.
The two pictures show the chamber inside of our new Xe plasma FIB SEM (XEIA3, Tescan) and the preparation process for the cross section of a zinc sponge which incorporates an ionomer. At first, a trench was made with the highest milling rate in about 2 hours, followed by polishing with two successive steps of an intermediated and a low milling rate for about 1 hour. The cross section shown is the first cross section made in our new FIB SEM.
The sample was investigated within Project Zisabi (in cooperation with Prof. Abe, Kyoto University, Japan; funded by the German Federal Ministry of Education and Research), where we look at the influence of anion-exchange ionomers on structured zinc anodes to stabilize the electrochemical deposition and dissolution processes during cycling.
For more information, please contact Boris Mogwitz and Klaus Peppler.
Publication on this topic:
Stock, D. et al. Towards zinc-oxygen batteries with enhanced cycling stability: The benefit of anion-exchange ionomer for zinc sponge anodes. J. Power Sources 395, 195–204 (2018).
(Picture submitted by Daniel Stock, Boris Mogwitz and Klaus Peppler.)
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