Suche nach „[Mobil]“ hat 325 Publikationen gefunden

MobilNachhaltigTC Plattling MoMo

Vortrag

Michael Sternad, M. Forster, M. Wilkening

Powering the Digital Revolution: A Miniaturized Lithium Battery Made of Single-Crystalline Silicon

Poster presentation

18th International Meeting on Lithium Batteries, Chicago, IL, USA

MobilNachhaltigTC Plattling MoMo

Patent

Michael Sternad, M. Forster, K. Schmut, B. Goller, Zieger G., M. Sorger, P. Schweizer

LITHIUM BATTERY, METHOD FOR MANUFACTURING A LITHIUM BATTERY, INTEGRATED CIRCUIT AND METHOD OF MANUFACTURING AN INTEGRATED CIRCUIT

MobilNachhaltigTC Plattling MoMo

Patent

Michael Sternad, M. Forster, K. Schmut, B. Goller, Zieger G., M. Sorger, et al.

LITHIUM BATTERY, METHOD FOR MANUFACTURING A LITHIUM BATTERY, INTEGRATED CIRCUIT AND METHOD OF MANUFACTURING AN INTEGRATED CIRCUIT

MobilNachhaltigTC Plattling MoMo

Patent

Michael Sternad, M. Forster, K. Schmut, B. Goller, Zieger G., M. Sorger, et al.

LITHIUM BATTERY, METHOD FOR MANUFACTURING A LITHIUM BATTERY, INTEGRATED CIRCUIT AND METHOD OF MANUFACTURING AN INTEGRATED CIRCUIT

MobilNachhaltigTC Plattling MoMo

Patent

Michael Sternad, M. Forster, K. Schmut, B. Goller, Zieger G., M. Sorger, et al.

LITHIUM BATTERY, METHOD FOR MANUFACTURING A LITHIUM BATTERY, INTEGRATED CIRCUIT AND METHOD OF MANUFACTURING AN INTEGRATED CIRCUIT

MobilNachhaltigTC Plattling MoMo

Patent

Michael Sternad, M. Forster, K. Schmut, B. Goller, Zieger G., M. Sorger, et al.

LITHIUM BATTERY, METHOD FOR MANUFACTURING A LITHIUM BATTERY, INTEGRATED CIRCUIT AND METHOD OF MANUFACTURING AN INTEGRATED CIRCUIT

MobilNachhaltigTC Plattling MoMo

Zeitschriftenartikel

Michael Sternad, M. Cifrain, D. Watzenig, G. Brasseur, M. Winter

Condition monitoring of Lithium-Ion Batteries for electric and hybrid electric vehicles

e & i Elektrotechnik und Informationstechnik, vol. 126, no. 5, pp. 186-193

DOI: 10.1007/s00502-009-0644-2

Abstract anzeigen

Since the early 1990s Lithium-Ion Batteries have stated a key technology in rechargeable batteries due to their high volumetric and gravimetric energy densities and were first introduced in personal devices like camcorders, cellular phones and mobile computers ("3-C applications"). Ongoing evolutionary advances release at present a new spate of research activities to extend the operational area of small-sized batteries with the final aim to achieve reliable energy storage in automotive environments (e.g. hybrid vehicles). High absolute energy amounts of large-scale Lithium-Ion Batteries raise safety and lifetime issues and set demands for methods to monitor the health conditions of batteries for automotive applications. By observing significant system variables, imminent failures of single cells or battery packs are in many cases predictable and suitable counteractions can be initiated. The paper gives a brief introduction to the state-of-the-art of advanced batteries for electric and hybrid electric vehicles. Special focus is put on the monitoring of safety-relevant system parameters like cell-voltage, system temperature and headspace-pressure, their significance on the battery's state-of-health (SOH) and possible cell-failures. Different in-situ, ex-situ and onboard measurement techniques are addressed.

MobilNachhaltigTC Plattling MoMo

Vortrag

Michael Sternad

Die große Macht der kleinen Ionen - was Lithium-Ionen-Batterien zm Erfolg führt(e)

Erfolgsfaktoren-Vortragsreihe, Kuchl, Österreich

MobilNachhaltigTC Plattling MoMo

Vortrag

Michael Sternad

Die Lithium-Ionen-Batterie - von der Knopfzeile zur Traktionsbatterie

Joint Annual Meeting of the Austrian Physical Society and the Swiss Physical Society, Linz, Österreich

MobilNachhaltigTC Plattling MoMo

Vortrag

M. Schweiger, N. Hochgatterer, P. Raimann, Michael Sternad, M. Schmuck, A. Balducci, et al.

"Mono --> Poly": Polymerization reactions in lithium batteries

PBFC-Polymer Batteries, Fuel Cells, Rome, Italy

MobilNachhaltigTC Plattling MoMo

Vortrag

M. Schweiger, N. Hochgatterer, P. Raimann, Michael Sternad, M. Winter

Electrolyte Decomposition On Chemically And Electrochemically Formed Li-Intermetallics

Poster presentation

58th Annual Meeting of the International Society of Electrochemistry, Banff, Canada

MobilNachhaltigTC Plattling MoMo

Vortrag

P. Raimann, N. Hochgatterer, M. Schweiger, Michael Sternad, M. Winter

Zukunfts-Management für regionale Betriebe ( Methoden und Werkzeuge - Chancen und Potenziale)

Batterien und Brennstoffzellen für Elektrofahrzeuge 2007, Ökopark Hartberg, Österreich

MobilNachhaltigTC Plattling MoMo

Vortrag

M. Schweiger, N. Hochgatterer, S. Koller, P. Raimann, Michael Sternad, M. Schmuck, et al.

Lithium Battery´s meaning of liefe: the Solid Electrolyte Interphase (SEI)

58th International Metting of the International Society of Electrochemistry (ISE), Banff, Kanada

MobilNachhaltigTC Plattling MoMo

Vortrag

M. Schmuck, B. Fuchsbichler, H. Kren, Michael Sternad, C. Bayer, C. God, et al.

Methoden für die Angewandte Materialcharakterisierung

Posterpräsentation

BASF Day, Graz, Österreich

MobilNachhaltigTC Plattling MoMo

Zeitschriftenartikel

W. Schmidt, P. Bottke, Michael Sternad, P. Gollob, V. Hennige, M. Wilkening

Small Change—Great Effect: Steep Increase of Li Ion Dynamics in Li 4 Ti 5 O 12 at the Early Stages of Chemical Li Insertion

Chemistry of Materials, vol. 27, no. 5, pp. 1740-1750

DOI: 10.1021/cm504564k

Abstract anzeigen

Lithium titanate (LTO) is one of the most promising anode materials for large-scale stationary electrochemical storage of energy produced from renewable sources. Besides many other aspects, such as negligible formation of passivation layers and no volume expansion during lithiation, the success of LTO is mainly based on its ability to easily accommodate and release Li ions in a fully reversible way. This feature is tightly connected with Li self-diffusion. As yet, little information is available about microscopic Li diffusion properties and elementary steps of Li hopping at low intercalation levels, i.e., at values of x being significantly smaller than 1. Here, we used 7Li spin-locking NMR relaxometry to probe absolute hopping rates of LTO (homogeneous) solid solutions in quasi-thermodynamic equilibrium. As a result, the largest increase of Li diffusivity is observed when small amounts of Li are inserted. Strong Coulomb repulsions caused by the simultaneous occupation of neighboring 8a and 16c sites serve as an explanation for the enhanced Li diffusivity found. At even larger values of x, Li mobility slows down but is still much faster than in the host material with x = 0. Our results experimentally corroborate the outcome of recently published calculations on the DFT level focusing on both dynamic and structural aspects. The findings favor the formation of LTO solid solutions upon chemical lithiation; the steep increase in Li diffusivity found might also help with understanding the flat insertion potential observed.

MobilNachhaltigTC Plattling MoMo

Vortrag

P. Raimann, E. Lanzer, K.-C. Möller, M. Winter, Michael Sternad, N. Hochgatterer, et al.

Advanced electrochemical mass spectrometry

Poster presentation

International Meeting on Lithium Batteries, Biarritz, Frankreich

MobilNachhaltigTC Plattling MoMo

Vortrag

P. Raimann, N. Hochgatterer, M. Schweiger, Michael Sternad, M. Winter

Batterien und Brennstoffzellen für Elektrofahrzeuge

CHANCE, Hartberg, Österreich

MobilNachhaltigTC Plattling MoMo

Vortrag

P. Raimann, J. Besenhard, K.-C. Möller, M. Winter, Michael Sternad, N. Hochgatterer, et al.

Preparation of Thin Film Model Electrodes by APID (Atmospheric Pressure Ion Deposition

Poster presentation

210th Meeting of The Electrochemical Society (ECS), Cancun, Mexiko

MobilNachhaltigTC Plattling MoMo

Vortrag

E. Lanzer, P. Raimann, K.-C. Möller, Michael Sternad, N. Hochgatterer, M. Schweiger, et al.

On the origin of gases evolved during electrolyte decomposition at silicon anodes in Lithium-Ion batteries

Poster presentation

International Meeting on Lithium Batteries, Biarritz, Frankreich

MobilNachhaltigTC Plattling MoMo

Zeitschriftenartikel

J. Langer, V. Epp, Michael Sternad, M. Wilkening

Diffusion-induced 7Li NMR relaxation of layer-structured tin disulphide — Li diffusion along the buried interfaces in Li0.17SnS2

Solid State Ionics, vol. 276, no. August, pp. 56-61

DOI: 10.1016/j.ssi.2015.03.039

Abstract anzeigen

7Li NMR relaxation has been used to study lithium-ion diffusion in layer-structured SnS2. Keeping the Li intercalation degree in LixSnS2 below x = 0.49, the Li ions preferentially occupy sites in the van der Waals gap between the SnS2 sheets. In contrast to conventional NMR spin-lattice relaxation (SLR) rate measurements in the laboratory frame of reference, which are sensitive to rather fast Li exchange processes, with the help of spin-locking SLR NMR slower Li motions were extracted from characteristic diffusion-induced rate peaks. The latter contain information on both Li+ activation energies Ea and Li ion jump rates τ− 1 characterizing the elementary steps of Li+ hopping. Our results point to two different diffusion processes (Ea(I) = 0.38 eV; Ea(II) = 0.28 eV), a slower and a faster one, observable directly after chemical Li insertion. Interestingly, the diffusion behaviour irreversibly changes when the sample has been exposed to temperatures as high as 573 K. Diffusion-induced NMR rates and corresponding line shapes are discussed with respect to an inhomogenous distribution of Li ions in SnS2, which seems to be present directly after Li intercalation.