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Konferenzbeiträge

Posterbeiträge, Vorträge (ab 2013)

2016

▪ "Making the Most of Neutron-Diffraction Data: Lithium Diffusion in Ramsdellite-Like Li2Ti3O7", D. Wiedemann, A. Franz, 2. Treffen der "Jungen Kristallographen" in der DGK, 2016, Poster. Awarded with poster prize.

▪ "The Elusive LiBi3S5-Synthesis, Characterization, and Topological Analysis", D. Wiedemann, S. Nakhal, B. Stanje, O. Dolotko, M. Wilkening, M. Lerch, 24. Jahrestagung der DGK, 2016, Poster. Awarded with poster prize.

▪ "Evaluation of Density Functional Theory for Li Ion Migration in 1T-LiTiS2", V. Werth, M. M. Islam, K. Volgmann, T. Bredow, P. Heitjans, Bunsen Colloquium "Defects and Diffusion in Solids: Application of new theoretical concepts", Aachen 2016, Poster. Awarded with poster prize.

▪ "Influence of structural and crystallographical factors on the Li-ion conductivity of garnet type cubic Li7La3Zr2O12 electrolyte units", M. Senna, P. Jeevan Kumar, A. Düvel, C. V. Chandran, K. Volgmann, P. Heitjans, N. Sakamoto, N. Wakiya, H. Suzuki, MSE, Darmstadt 2016, Talk.

▪ "Electrolytes for All-Solid-State Batteries: Diffusivity, Conductivity and Mobility", M. Wilkening, 2nd Graz Battery Days, Graz, Austria, Invited Talk.

▪ "Sulfide Solid Electrolytes -  Long-Range and Local Li-Ion Dynamics in the Glass-Ceramic Li3PS4", D. Prutsch, H. Brandstätter, V. Pregartner, D. Wohlmuth, V. Epp,  2nd Graz Battery Days, Graz, Austria, Poster.

▪ "From Ultrafast to Extremely Slow Li Ion Dynamics in (Nano-)Crystalline Solids - Dimensionality Effects and Structural Disorder", M. Wilkening, EMRS 2016, Warsaw, Poland, Invited Talk.

▪ "Solid Electrolytes: Extremely Fast Charge Carriers in Single Crystalline Garnet-Type Li6La3ZrTaO12", B. Stanje, D. Rettenwander, S. Berendts, R. Uecker, G. Redhammer, M. Wilkening, EMRS 2016, Symposium N, Warsaw, Poland, Vortrag.

▪ "The Elementary Steps of Li Ion Hopping in the Anode Material Li2Ti3O7", S. Lunghammer, M. Wilkening, EMRS 2016, Symposium N, Warsaw, Poland, Poster.

▪ "Hydrothermally Synthesized Sodium Titanates as Anode Materials for Sodium-Ion Batteries", P. Posch, I. Hanzu, M. Wilkening, EMRS 2016, Symposium N, Warsaw, Poland, Poster.

▪ "Ion-Beam Sputtered Thin LixSi Films and Atomic Transport", F. Strauß, H. Schmidt, P. Heitjans, Verhandlungen der DPG 2016, Regensburg, Poster.

▪ "Li7La3Zr2O12 Interface Modification for Li-dendrite Prevention", M. Finsterbusch, C. L. Tsai, V. Roddatis, V. C. Nair, Q. Ma, S. Uhlenbruck, P. Heitjans, O. Guillon, invited talk, PRiME 2016, Honolulu, Hawaii, Talk.

▪ "Mobile Li+ and F- Ions in Insulating Materials", P. Heitjans, ICDIM 2016, Lyon, France, Invited Talk.

▪ "Li7La3Zr2O12 Interface Modification for Li-dendrite Prevention", H.-G. Gehrke, C.-L- Tsai, V. Roddatis, C. Vinod Chandran, S. Uhlenbruck, P. Heitjans, O. Guillon, ICACC 2016, Talk.

▪ "The influence of mobile monovalent ions on structures and properties of multinary thermoelectric tellurides", O. Oeckler, P. Heitjans, S. Schwarzmüller, A. Düvel, L. Schmohl, M. Jakob, A. Kuhn, M. Nentwig, T. Schröder, 30th European Crystallographic Meeting, 2016, Congress Center Basel, Switzerland, Talk.

▪ “Solid electrolytes for Li batteries — how NMR helps us to identify suitable candidates”, invited talk, M. Wilkening,Technische Universität München, Institutskolloquium, Talk.

▪ “Li Ion Dynamics in Solid Electrolytes as Seen by Time-Domain NMR”, invited talk, M. Wilkening, 67th Annual Meeting of the International Society of Electrochemistry, The Hague, The Netherlands, Talk.

▪ “Solid Electrolytes: Bulk and Grain Boundary Li Ion Conductivity of Li1.5Al0.5Ti1.5(PO4)3” S. Breuer, D. Prutsch, Q. Ma, V. Epp, F. Preishuber-Pflügl, F. Tietz, M. Wilkening, IMLB 2016 Chicago, Poster.

▪ “Powering the Digital Revolution: A Miniaturized Lithium Battery Made of Single-Crystalline Silicon” M. Sternad, M. Forster, M. Wilkening, IMLB 2016 Chicago, Poster.

▪ “Interface Storage and Diffusion in Titania-Based Na-Ion Battery Negative Electrodes” I. Hanzu, D. Prutsch, M. Uitz, M. Wilkening, IMLB 2016 Chicago, Poster.

▪ “Sulfide Electrolytes: Study of Local Li-Ion Dynamics in Li3PS4 Using 7Li NMR Relaxometry” D. Prutsch, H. Brandstätter, V. Pregartner, D. Wohlmuth, V. Epp, M. Wilkening, IMLB 2016 Chicago, Poster.

▪  "Ageing of Commercial 18650 Batteries Used in Tesla Model S Electric Vehicles" ― M. Uitz, M. Sternad, T. Traussnig, C. Täubert, V. Hennige, M. Wilkening, IMLB 2016, Chicago, Poster.

▪ "A Microbattery Made from Monocrystalline Silicon" ― M. Wilkening, Thermec 2016, Graz, Invited Talk.

▪ "Identifying fast Li ions at the interfaces in composites of ionic liquids (EMIMTFSI) and Li salts (LiTFSI) by long-time 7Li NMR" ― B. Stanje, P. Bottke, I. Hanzu, M. Marczweski, P. Johansson, M. Wilkening, E-MRS 2016 Spring Meeting, Lille, France, Poster. Awarded with poster prize.

▪  "Separating bulk from grain boundary Li ion conductivity in the sol-gel prepared solid electrolyte Li1.5Al0.5Ti1.5(PO4)3" ― S. Breuer, D. Prutsch, Q. Ma, V. Epp, F. Preishuber-Pflügl, F. Tietz, M. Wilkening, International Battery Association Meeting 2016, Nantes, France, Poster.

▪  "Ageing studies on commercial 18650 batteries used in Tesla model S electric vehicles " ― M. Uitz, M. Sternad, T. Traussnig, C. Täubert, V. Hennige, M. Wilkening, International Battery Association Meeting 2016, Nantes, France, Poster.

 

2015

▪  "Spatially Confined Li Diffusion in Channel-Structured LiBi3S5" ― B. Stanje, S. Nakhal, M. Lerch, M. Wilkening, Materials Day, Graz, Austria, 2015, Poster. 

▪  "Li-Ion Dynamics of Layer-Structured 2H-LixNbS2 studied by 7Li NMR" ― B. Stanje, M. Wilkening, 15th European Conference on Solid State Chemistry, Vienna, Austria, 2015, Poster.

▪  "Combined 6,7Li NMR study of slow Li diffusion in monoclinic Li2SnO3" ― J. Langer, P. Bottke, M. Wilkening, 15th European Conference on Solid State Chemistry, Vienna, Austria, 2015, Poster.

▪  "Extremely High Li+ Diffusivity in NASICON-type Li1.5Al0.5Ti1.5(PO4)3" ― V. Epp, Q. Ma, F. Tietz, M. Wilkening, 15th European Conference on Solid State Chemistry, Vienna, Austria, 2015, Poster.

▪  "Lithium ion dynamics in amorphous Li-Si electrochemically prepared from semiconductor grade, monocrystalline silicon - An NMR Study" ― A. Dunst, M. Sternad, V. Epp, M. Wilkening, 15th European Conference on Solid State Chemistry, Vienna, Austria, 2015, Talk.

▪  "Li ion dynamics in nanocrystalline and structurallly disordered Li2TiO3" ― H. Brandstätter, D. Wohlmuth, P. Bottke, V. Pregartner, M. Wilkening, 15th European Conference on Solid State Chemistry, Vienna, Austria, 2015, Poster.

▪  "Fast Li Ion Transport in the Li7P3S11 Glass Ceramic as Seen by 6,7Li NMR Relaxometry" ― D. Wohlmuth, V. Epp, M. Wilkening, 15th European Conference on Solid State Chemistry, Vienna, Austria, 2015, Poster.

▪  "The Electrochemical Performance of Rutile Nanorods for Lithium-Ion Batteries" ― M. Uitz, P. Bottke, W. Schmidt, M. Wark, I. Hanzu, M. Wilkening, 15th European Conference on Solid State Chemistry, Vienna, Austria, 2015, Poster.

▪  "Self-Organized Amorphous TiO2 Nanotubes as Na-Ion Battery Anodes" ― D. Prutsch, M. Wilkening, I. Hanzu, 15th European Conference on Solid State Chemistry, Vienna, Austria, 2015, Poster.

▪  "Small change ― great effect: Steep increase of Li ion dynamics in Li4Ti5O12 at the early stages of chemical Li insertion (x = 0.1, x = 0.3)" ― W. Schmidt, P. Bottke, V. Hennige, P. Gollob, I. Hanzu, M. Wilkening, 12th International Conference on Materials Chemistry, University of York, UK, 2015, Poster. 

▪  "Fast Li Self-Diffusion in Amorphous Li-Si Electrochemically Prepared from Semiconductor Grade, Monocrystalline Silicon ― Insights from Spin-Locking Nuclear Magnetic Relaxometry" ― A. Dunst, M. Sternard, V. Epp, M. Wilkening, 20th International Conference on Solid State Ionics, Keystone, Colorado, USA, 2015, Poster. 

▪  "Elucidating Li ion dynamics and diffusion pathways in Li2SnO3 ― A comparative 6,7Li NMR study" ― J. Langer, P. Bottke, M. Wilkening, 20th International Conference on Solid State Ionics, Keystone, Colorado, USA, 2015, Talk. 

▪  "Fast but Complex ― Ultrafast Li Ion Dynamics in Li7P3S11 Glass Ceramic ass Seen by 6,7Li NMR and Conductivity Studies" ― D. Wohlmuth, M. Wilkening, 11th International Conference on Ceramic Materials and Components for Energy and Environmental Applications, Hyatt Regency, Vancouver, Canada, 2015, Talk. 

▪  "Li-Ion Dynamics Along the Inner Surface of Layer-Structured 2H-LixNbS2" ― B. Stanje, V. Epp, S. Nakhal, M. Lerch, M. Wilkening, 20th International Conference on Solid State Ionics, Keystone, Colorado, USA, 2015, Poster.

▪  "Extremely Mobile Ions in Solid Electrolytes as Seen by NMR" ― M. Wilkening, 20th International Conference on Solid State Ionics, Keystone, Colorado, USA, 2015, Talk.

▪  "Mobile Lithium Ions in Solids - Access to Li+ Dynamics via variable-temperature 7Li (and 6Li) NMR Relaxometry" ― M. Wilkening, International Workshop on Solid Lithium Ion Conductors, AIT Austrian Institute of Technology, Vienna, 2015, Talk. 

▪ "Inhomogenous Aging Effects during Low-Temperature-Cycling of Graphite Anodes in Lithium Ion Cells", D. Burow, K. Sergeeva, S. Calles, K. Schorb, A. Börger, C. Roth, P. Heitjans, Kraftwerk Batterie, Aachen, 2015, Poster.

▪  "High-Temperature Transformation from 1T- to 3R-LixTiS2 Observed in situ with Neutron Diffraction" ― D. Wiedemann, S. Nakhal, A. Senyshyn, T. Bredow, M. Lerch, 23. Jahrestagung der Deutschen Gesellschaft für Kristallographie, Göttingen, 2015, Poster.

▪  "The site preferences of Al and Ga in (Al, Ga)-doped garnet-type Li7La3Zr2O12 as deduced from 27Al and 71Ga MAS NMR at ultrahigh magnetic fields" ― D. Rettenwander, J. Langer, W. Schmidt, K. Harris, V. Terskikh, G. Goward, M. Wilkening, G. Amthauer, 23. Jahrestagung der Deutschen Gesellschaft für Kristallographie, Göttingen, 2015, Poster.

▪  "The role of dopents in Li7 La3Zr2O12 garnets" ― D. Rettenwander, R. Wagner, J. Langer, W. Schmidt, A. Wezel, K. Harris, V. Terskikh, G. Goward, M. Wilkening, M. Maier, G. Redhammer, J. Fleig, G.Amthauer, 30. Workshop on Novel Materials and Superconductors, Obertraun, Österreich, 2015, Poster.

▪  "Crystal chemistry of “Li7La3Zr2O12” garnet doped with Al, Ga, and Fe: a review of NMR- and Mössbauer spectroscopy studies" ― G.Amthauer, J. Langer, M. E. Meyer, D. Rettenwander, R. Wagner, M. Wilkening, PERIODICO di MINERALOGIA, ECMS 2015 - Proceedings of the 8th European Conference on Mineralogy and Spectroscopy Rome, Italy, 2015, Talk.

 

2014

▪  "Conductivity and Dielectric Properties of LixNa2-xTi6O13 (x = 0...2)", K. Volgmann, P. Heitjans, Verhandlungen der DPG 2014, Dresden, Talk.

▪  "X Marks the Path — Diffusion Pathways in 3R-LixTiS2 as a Function of Lithium Content" — D. Wiedemann, S. Nakhal, A. Senyshyn, M. Lerch, 22. Jahrestagung der Deutschen Gesellschaft für Kristallographie, Berlin, 2014, Poster.

▪  "A DFT study of the role of Al3+ in the fast ion conductor Li7-3xAl3+xLa3Zr2O12 garnets" ― D. Rettenwander, P. Blaha, R. Laskowski, K. Schwarz, P. Bottke, M. Wilkening, G. Amthauer, 29. Workshop on Novel Materials and Superconductors, Obertraun, Österreich, 2014, Poster.

▪  "Complex Ultrafast Li+ Ion Dynamics in Li7P3S11 as seen by 6,7Li NMR relaxometry and line shape studies" ― D. Wohlmuth, W. Schmidt, V. Epp, P. Bottke, I. Hanzu, M. Wilkening, Bunsenkolloquium Solid-State Batteries, Frankfurt, 2014, Poster. 

▪  "Extremely Mobile Ions - How to Probe Ultrafast Li+ Dynamics in Solid Electrolytes by Time-domain NMR" ― M. Wilkening, D. Wohlmuth, Bunsenkolloquium Solid-State Batteries, Frankfurt, 2014, Talk. 

▪  "Synthesis and Electrochemical Characterization of TiO2 Nanotubes as Na-Ion Battery Anodes" ― D. Prutsch, M. Wilkening, I. Hanzu, 1st Int. Conf. Functional Integrated nano Systems - nanoFIS 2014, Graz, Poster. Awarded with poster prize.

▪  "Carbon and Oxide Materials with Designed Pore Architectures for Li Ion Diffusion and Battery Applications" ― M. Wark, Bunsenkolloquium 2014, Hannover, Talk.

▪  "From Ultrafast to Extremely Slow Li Ion Dynamics in (Nano)crystalline Solids - Dimensionality Effects and Disorder" ― M. Wilkening, Bunsenkolloquium 2014, Hannover, Talk.

▪  "Li Diffusion in Various Polymorphs of LiTiS2: Insights form Theory" ― M. M. Islam, T. Bredow, Bunsenkolloquium 2014, Hannover, Poster.

▪  "Slowly but Surely - Pathways of Ultraslow Lithium Diffusion in γ-LiAlO2" ― D. Wiedemann, S. Nakhal, S. Zander, M.Lerch, Bunsenkolloquium 2014, Hannover, Poster.

▪  "Lithium Self-Diffusion in Single Crystalline and Amorphous LiAlO2" ― J. Rahn, E. Hüger, E. Witt, P. Heitjans, H. Schmidt, Bunsenkolloquium 2014, Hannover, Poster.

▪  "Lithium Transport through Ultrathin Silicon Layers" ― E. Hüger, L. Dörrer, T. Geue, J. Stahn, H. Schmidt, Bunsenkolloquium 2014, Hannover, Poster.

▪  "Hydrothermally Synthesized Nanostructured Sodium Titanates as Negative Electrode Materials for Na-Ion Batteries" ― P. Posch, P. Bottke, M. Wilkening, and I. Hanzu, Bunsenkolloquium 2014, Hannover, Poster.

▪  "Li Insertion Behaviour of Rutile TiO2 Nanorods as Anode Material in Lithium-Ion Batteries" ― M. Uitz, P. Bottke, W. Schmidt, M. Wark, I. Hanzu, M. Wilkening, Bunsenkolloquium 2014, Hannover, Poster.

▪  "7Li Field-Cycling NMR as Powerful Tool for Investigating Li Ion Conductors" ― K. Volgmann, B. Kresse, A. F. Privalov, F. Fujara, P. Heitjans, Bunsenkolloquium 2014, Hannover, Poster.

▪  "Multinuclear Solid-State NMR Study of Local Structure and Dynamics in Li0.7Nb3S4" ― K. Volgmann, V. Epp, P. Bottke, C. V. Chandran, S. Nakhal, M. Lerch, M. Wilkening, P. Heitjans, Bunsenkolloquium 2014, Hannover, Poster.

▪  "Nuclear Magnetic Resonance and Impedance Spectroscopy Studies on Lithium Ion Diffusion in γ-LiAlO2" ― E. Witt, J. Rahn, H. Schmidt, S. Nakhal, M. Lerch, C. V. Chandran, P. Heitjans, Bunsenkolloquium 2014, Hannover, Poster.

▪  "Solid-state NMR Investigations on the Lithiated Thiospinel LixTiS2" ― C. V. Chandran, S. Nakhal, K. Volgmann, E. Witt, M. Lerch, P. Heitjans, Bunsenkolloquium 2014, Hannover, Poster.

▪  "Solid-State NMR Studies on Li+ Ion Dynamics and Structure of LixAlx-1Tiy(PO4)3" ― C. V. Chandran, S. Pristat, E. Witt, F. Tietz, P. Heitjans, Bunsenkolloquium 2014, Hannover, Poster.

▪  "The Site Preference of Al and Ga in Mixed Doped Li7−3(x+y)GaxAlyLa3Zr2O12 Garnet Solid Solutions with x, y {0.1, 0.2, …, 0.8 ; x + y ≤ 0.8} and its Influence on Li-Ion Mobility" ― D. Rettenwander, W. Schmidt, C. Arrer, M. Wilkening, G. Amthauer, Bunsenkolloquium 2014, Hannover, Poster.

▪  "Synthesis of Coarse-grained Garnet-type Li-ion Conductor Li7-3x(Al/Ga)xLa3Zr2O12 and its Li-ion Dynamics" ― R. Wagner, D. Rettenwander, M. Maier, W. Schmidt, J. Langer, M. Wilkening, G. Amthauer, Bunsenkolloquium 2014, Hannover, Poster. 

▪  "Investigation of Lithium Ion Dynamics in Copper Coated Graphite" ― K. Bösebeck, K. Volgmann, B. K. Licht, F. Homeyer, M. Binnewies, P. Heitjans, The International Conference on Diffusion in Materials - DIMAT, Münster (2014), Poster. 

▪  "Lithium self-diffusion in compounds of the system Li2O-Nb2O3" ― J. Rahn, E. Hüger, B. Ruprecht, P. Heitjans, H. Schmidt, The International Conference on Diffusion in Materials - DIMAT, Münster (2014), Poster. 

▪  "Extremely Slow Lithium Ion Diffusion in γ-LiAlO2" ― E. Witt, J. Rahn, H. Schmidt, S. Nakhal, M. Lerch, P. Heitjans, The International Conference on Diffusion in Materials - DIMAT, Münster (2014), Poster.

▪  "Solid-state NMR studies on ion dynamics and local structure in cubic LixTiS2" ― C.V. Chandran, S. Nakhal, K. Volgmann, M. Lerch, P. Heitjans, The International Conference on Diffusion in Materials - DIMAT, Münster (2014), Poster. 

▪  "Steep increase of Li diffusivity in the anode material Li4+xTi5O12 at low amounts of Li insertion (x = 0.1, x = 0.3)" ― W. Schmidt, P. Bottke, V. Hennige, P. Gollob, I. Hanzu, M. Wilkening, The International Conference on Diffusion in Materials - DIMAT, Münster (2014), Talk. 

▪  "Increasing the Li Diffusivity of Poorly Conducting Solids by Mechanical Treatment" ― D. Wohlmuth, V. Epp, I. Letofsky-Papst, F. Hofer, M. Kriechbaum, H. Amenitsch, M. Wilkening, The International Conference on Diffusion in Materials - DIMAT, Münster (2014), Talk.

▪  "Tracking down fast Li ions in composites of ionic liquids and Li salts by long-time 7Li NMR spin-lattice relaxation" ― B. Stanje, P. Bottke, I. Hanzu, M. Marczewski, P. Johansson, M. Wilkening, The International Conference on Diffusion in Materials - DIMAT, Münster (2014), Poster.

▪  "Mobility of Li Ions in Solids" ― P. Heitjans, CIMTEC 2014, 6th Forum on New Materials, Montecatini Terme, Italy (2014), Invited Talk.

▪  "Li Self-Diffusion in Metastable Li15Si4 prepared from Monocrystalline Si — An Ex Situ 7Li NMR Relaxometry Study" ― A. Dunst, M. Sternad, V. Epp, M. Wilkening, 17th International Meeting on Lithium Batteries (IMLB), Como, Italien (2014), Poster.

▪  "Li ion diffusion and ionic conduction in nanocrystalline, glassy and nanoglassy alumosilicate LiAlSi4O10" ― B. Stanje, P. Bottke, P. Heitjans, M. Wilkening, INCOME - International Conference on Mechanochemistry and Mechanical Alloying, Krakau (2014), Poster.

2013

▪  "Lithium Ion Dynamics and Transport in Lithium Niobate" ― P. Heitjans, Int. Workshop on Stoichiometric LiNbO3 in Goslar (2013), Invited Talk.

▪  "Microdynamics in Nanocrystalline and Nanoglassy: Crystalline and Amorphous Lithium Ion Conductors" ― P. Heitjans, 7th Int. Discussion Meeting on Relaxations in Complex Systems in Barcelona (2013), Invited Talk.

▪  "7Li ion diffusion in isotope-diluted glassy Li2Si3O7 — the generation of pure spin-3/2 spin-alignment NMR echoes" ― D. Wohlmuth, V. Epp, U. Bauer, A.-M. Welsch, H. Behrens, and M. Wilkening, Diffusion Fundamentals V in Leipzig (2013), Poster.

▪  "Extreme mobility: low-temperature NMR probes highly diffusive Li+ ions in argyrodite-type Li6PSe5Cl and Li6PS5Br" ― V. Epp , Ö. Gün, H.-J. Deiseroth, M. Wilkening, Diffusion Fundamentals V in Leipzig (2013), Poster.

▪  "Theoretical investigation of one-, two- and three-dimensional Li diffusion in solids" ― T. Bredow, M. M. Islam, Diffusion Fundamentals V in Leipzig (2013), Poster.

▪  "Diffusion in LixNa2-xTi6O13 investigated with impedance spectroscopy" ― K. Volgmann, K. Bösebeck, P. Heitjans, Diffusion Fundamentals V in Leipzig (2013), Poster.

▪ "Diffusion in lithium ion conductors - from fundamentals to applications" ― P. Heitjans, Diffusion Fundamentals V in Leipzig (2013), Invited Talk.

▪  "Li-air batteries: ionic conductivity of nanocrystalline lithium peroxide Li2O2" ― A. Dunst, S. Freunberger, V. Epp, M. Wilkening, Chemietage der GÖCH, Graz (2013), Poster. 

▪  "Charge Carrier transport in micro and nanocrystalline Li2O2 as probed by conductivity spectroscopy" ― A. Dunst, S. Freunberger, V. Epp, M. Wilkening, International Battery Association Meeting (IBA), Barcelona (2013), Poster.