Publications in 2017 (peer reviewed)

(114.)  Ion dynamics in solid electrolytes for lithium batteries, M. Uitz, V. Epp, P. Bottke, M. Wilkening, J. Electroceram. (2017), in press.

(113.)  Ion Transport Unwanted: Li-Blocking Barrier Materials for Si-Based Batteries, R. Janski M. Fugger, M. Forster, A. Dunst, M. Sternad and M. Wilkening (2017), submitted.

(112.)  Solid State NMR to Study Translational Li Ion Dynamics in Solids with Low-Dimensional Diffusion Pathways, K. Volgmann, V. Epp, J. Langer, B. Stanje, J. Heine, S. Nakhal, M. Lerch, M. Wilkening, P. Heitjans, Z. Phys. Chem. (2017), submitted. (DFG molife final report, TP1)

(111.)  Nanostructured Ceramics: Ionic Transport and Electrochemical Activity - A short journey across various families of materials, D. Prutsch, S. Breuer, M. Uitz, B. Stanje, J. Langer, P. Bottke, S. Lunghammer, P. Posch, V. Pregartner, M. Philipp, A. Dunst, D. Wohlmuth, H. Brandstätter, W. Schmidt, V. Epp, A. Chadwick, I. Hanzu and M. Wilkening, Z. Phys. Chem. (2017), submitted. (DFG molife final report, TP7)

(110.)  An X-Ray Absorption Spectroscopy Study of Ball-Milled Lithium Tantalate and Lithium Titanate Nanocrystals, A.V. Chadwick, D.M. Pickup, S. Ramos, G. Cibin, N. Tapia-Ruiz, S. Breuer, D. Wohlmuth and M. Wilkening, IOP Conf. Series: Mater. Sci. Engin. 169 (2017) 012015.

(109.)  Structure and ion dynamics of mechanosynthesized oxides and fluorides, M. Wilkening, A. Düvel, F. Preishuber-Pflügl, K. da Silva, S. Breuer, V. Sepelak, P. Heitjans, Z. Krist.-Cryst. Mater. 232 (2017) 107. (DFG SPP1415 final report)

(108.)  An Electrolyte for Reversible Cycling of Sodium Metal and Intercalation Compounds, L. Schafzahl, I. Hanzu, M. Wilkening, S. Freunberger, ChemSusChem 10 (2017) 401.


Publications in 2016 (peer reviewed)

(107.)  Synthesis, crystal structure and stability of cubic Li7−xLa3Zr2−xBixO12, R. Wagner, D. Rettenwander, G. Redhammer, G. Tippelt, G. Sabathi, M. Musso, B. Stanje, M. Wilkening, E. Suard, G. Amthauer, Inorg. Chem. 55 (2017) 12211.

(106.) The microstructure matters: breaking down the barriers with single crystalline silicon as negative electrode in Li-ion batteries, M. Sternad, M. Forster, M. Wilkening Sci. Rep. 6 (2016) 31712.

(105.) Ultra-slow Li ion jump diffusion in Li2SnO3 studied by two-time Li spin-alignment echo NMR and Li NMR relaxometry, J. Langer, M. Wilkening, Solid State Ion. 293 (2016) 85.

(104.)  Electrochemical preparation of tin–titania nanocomposite arrays, D. Prutsch, M. Wilkening, I. Hanzu, RSC Adv. 6 (2016) 98243.

(103.) Discriminating the Mobile Ions from the Immobile Ones in Li4+xTi5O12: 6Li NMR Reveals the Li+ Diffusion Pathway and Proposes a Refined Lithiation Mechanism, W. Schmidt and M. Wilkening, J. Phys. Chem. C 120 (2016) 11372.

(102.)  An Unexpected Pathway: 6Li-Exchange NMR points to Vacancy-Driven Out-of-Plane Li-Ion Hopping in Crystalline Li2SnO3, J. Langer, D. L. Smiley, G. R. Goward, A. D. Bain, and M. Wilkening, J. Phys. Chem. C 120 (2016) 3130.

(101.)  Electrochemical properties of spinel Li4Ti5O12 nanoparticles repared via a low-temperature solid route, M. Senna, M. Fabián, L. Kavan, M. Zukalová, J. Briančin, E. Turianicová, P. Bottke, M. Wilkening, V. Šepelák, J. Solid State Electrochem. 20 (2016) 2673.

(100.) LiBi3S5 — A Lithium Bismuth Sulfide with Strong Cation Disorder S. Nakhal, D. Wiedemann, B. Stanje, O. Dolotko, M. Wilkening, M. Lerch, J. Solid State Chem. 238 (2016) 60.

(99.)  Myth and Reality about the Origin of Inductive Loops in Impedance Spectra of Lithium-Ion Electrodes —A Critical Experimental Approach  H. Brandstätter, I. Hanzu, M. Wilkening, Eletrochim. Acta 207 (2016) 218.

(98.)  Mechanochemically Synthesized Fluorides: Local Structures and Ion Transport  F. Preishuber-Pflügl, M. Wilkening, Dalton Transact. 45 (2016), 8675.

(97.)  Structural and Electrochemical Consequences of Al and Ga co-substitution in Li7La3Zr2O12 Solid Electrolytes  D. Rettenwander, G. Redhammer, F. Florian Preishuber-Pflügl, L. Cheng, L. Miara, R. Wagner, A. Welzl, E. Suard, M.M. Doeff, M. Wilkening, J. Fleig, G. Amthauer, Chem. Mater. 28 (2016) 2384.

(96.)  Overall Conductivity and NCL-Type Relaxation Behavior in Nanocrystalline Sodium Peroxide Na2O2 ― the discharge product in Na-Air batteries   A. Dunst, M. Wilkening, Mater. Sci. Eng. B 211 (2016) 85.

(95.)  Crystal chemistry of “Li7La3Zr2O12” garnet doped with Al, Ga, and Fe: A short review on local structures as revealed by NMR and Mössbauer spectroscopy studies  D. Rettenwander, R. Wagner, J. Langer, M. E. Maier, M. Wilkening, G. Amthauer, Eur. J. Min. (2016), in press.

(94.)  Crystal structure of garnet-related Li-ion conductor Li7-3xGaxLa3Zr2O12: Fast Li-ion conduction caused by a different cubic modification? R. Wagner, G. J. Redhammer, D. Rettenwander, A. Senyshyn, W. Schmidt, M. Wilkening, G. Amthauer, Chem. Mater. 28 (2016) 1861.

(93.)   High-Energy Mechanical Treatment Boosts Ion Transport in Nanocrystalline Li2B4O7  D. Wohlmuth, V. Epp, A.-M. Welsch, H. Behrens, M. Wilkening, J. Am. Ceram. Soc. 99 (2016) 1687.

(92.)  Diffusion-induced 7Li NMR spin-lattice relaxation of non-lithiated Li4Ti5O12 and fully lithiated, mixed-conducting Li7Ti5O12 battery materials  W. Schmidt and M. Wilkening, Solid State Ion. 287 (2016) 77.

(91.)  Unravelling Ultraslow Lithium-Ion Diffusion in γ-LiAlO2: Experiments with Tracers, Neutrons, and Charge Carriers  D. Wiedemann, S. Nakhal, J. Rahn, E. Witt, M. M. Islam, S. Zander, P. Heitjans, H. Schmidt, T. Bredow, M. Wilkening, M. Lerch, Chem. Mater. 28 (2016) 915.

(90.)  Evaluating the trade-off between electrochemical and mechanical performance of separators for lithium-ion batteries: methodology and application   M. Plaimer, C. Breitfuß, W. Sinz, S. F. Heindl, C. Ellersdorfer, H. Steffan, M. Wilkening, V. Hennige, R. Tatschl et al. J. Power Sources 308 (2016) 702.

(oa)  Method for Determination of the Internal Short Resistance and Heat Evolution at Different Mechanical Loads of a Lithium Ion Battery Cell Based on Dummy Pouch Cells T. Volck, W. Sinz, G. Gstrein, C. Breitfuß, S. F. Heindl, H. Steffan, S. Freunberger, M. Wilkening, M. Uitz, C. Fink, A. Geier, Batteries 2 (2016) 8.

(89.)  Investigation of the Electron Transfer at Si Electrodes: Impact and Removal of the Native SiO2 Layer   H. Bülter, M. Sternad, E. dos Santos Sardinha, J. Witt, C. Dosche, M. Wilkening, G. Wittstock, J. Electrochem. Soc. 163 (2016) A504.


Publications in 2015

(88.)  Fast Li ion diffusivity in crystalline Li1.5Al0.5Ti0.5(PO4)3 as seen by NMR relaxometry  V. Epp, Q. Ma, E.-M. Hammer, F. Tietz, M. Wilkening, Phys. Chem. Chem. Phys. 17 (2015) 32115.  

(87.)  Impact of the Native SiO2 Surface Layer on the Electron Transfer at Amorphous Si Electrodes  H. Bülter, M. Sternad, M. Wilkening, G. Wittstock, ECS Transact. 68(2) (2015) 1-11.

(86.)  Long Cycle-Life Na-ion Anodes Based on Amorphous Titania Nanotubes - Interfaces and Diffusion  D. Prutsch, M. Wilkening, and I. Hanzu, Appl. Mater. Interfaces 7 (2015) 25757.

(85.)  Separating bulk from grain boundary Li ion conductivity in the sol-gel prepared solid electrolyte LATP  S. Breuer, Q. Ma, D. Prutsch, V. Epp, F. Preishuber-Pflügl, F. Tietz, and M. Wilkening, J. Mater. Chem. A 3 (2015) 21343.

(84.)  Li ion dynamics in solid electrolytes revealed by time-domain NMR: The elementary steps of ion hopping in oxide garnets   P. Bottke, D. Rettenwander, W. Schmidt, G. Amthauer, and M. Wilkening, Chem. Mater. 27 (2015) 6571.

(83.)  Mechanical Detection of Ultraslow, Debye-like Li-Ion Motions in LiAlO2 single crystals  J. Langer, D. Wohlmuth, A. Kovalcik, V. Epp, F. Stelzer, and M. Wilkening, Ann. Phys. (Berlin) 527 (2015) 523.

(82.)  Fast Li+ Ion Dynamics in the Solid Electrolyte Li7P3S11 as Probed by 6,7Li NMR Spin-Lattice Relaxation  D. Wohlmuth, V. Epp, and M. Wilkening, ChemPhysChem. 16 (2015) 2582.

(81.)  A simple and straightforward mechanochemical synthesis of the far-from-equilibrium zinc aluminate, ZnAl2O4, and its response to thermal treatment  M. Fabian, P. Bottke, V. Girman, A. Düvel, K. L. Da Silva, M. Wilkening, H. Hahn, P. Heitjans, V. Sepelak, RSC Advances 5 (2015) 54321.

(80.)  Li self-diffusion in amorphous Li-Si electrochemically prepared from semiconductor grade, monocrystalline silicon - insights from spin-locking nuclear magnetic relaxometry  A. Dunst, M. Sternad, V. Epp, and M. Wilkening, J. Phys. Chem. C 119 (2015) 12183.

(79.)  Site Preference of Ga and Al in Stabilized Cubic Li7-3(x+y)GaxAlyLa3Zr2O12 Garnets as Deduced from Al and Ga MAS NMR at Ultrahigh Magnetic Fields D. Rettenwander, J. Langer, W. Schmidt, C. Arrer, K. Harris, V. Terskikh, G. Goward, M. Wilkening, G. Amthauer, Chem. Mater. 27 (2015) 3135.

(78.)  Small change - great effect: Steep increase of Li ion dynamics in the anode material Li4Ti5O12 at the early stages of chemical Li insertion  W. Schmidt, P. Bottke, M. Sternad, P. Gollob, V. Hennige, M. Wilkening, Chem. Mater. 27 (2015) 1740.

(77.)  Li ion dynamics in nanocrystalline and structurally disordered Li2TiO3  H. Brandstätter, D. Wohlmuth, P. Bottke, V. Pregartner, M. Wilkening, Z. Phys. Chem. 229 (2015) 1363.

(76.) Diffusion-induced 7Li NMR relaxation of layer-structured tin disulfide - Li diffusion along the buried interfaces in Li0.17SnS2  J. Langer, V. Epp, M. Sternad, M. Wilkening, Solid State Ion. 276 (2015) 56.

(75.)  Li ion dynamics along the inner surfaces in layer-structured 2H-LixNbS2 B. Stanje, V. Epp, S. Nakhal, M. Lerch, M. Wilkening, ACS Appl. Mater Interfaces 7 (2015) 4089.

(book chapter)  Li dynamics in solids as seen via NMR relaxometry V. Epp, M. Wilkening, Handbook of Solid State Batteries (Eds. N. Dudney et al.), (2015), World Scientific, pp. 133 - 190.

(74.) The 3R modification of LixTiS2 - insights into local electronic structures from high-temperature in situ NMR spectroscopy  M. Wilkening, Phil. Mag. 95 (2015) 861.

(73.)  Defect-enhanced F ion conductivity in layer-structured nanocrystalline BaSnF4 prepared by high-energy ball milling combined with soft annealing  F. Preishuber-Pflügl, V. Epp, S. Nakhal, M. Lerch, M. Wilkening, Phys. Status Solidi C 12 (2015) 10.

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