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Stefan Koller

Dipl.-Ing. Dr.techn.

20062019
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Research Output 2006 2019

2019

Monitoring of the Transition Metal Oxidation State in Battery Cathodes during Charging and Discharging by Magnetometry

Klinser, G., Zettl, R., Hanzu, I., Kren, H., Koller, S., Krenn, H. & Würschum, R., 17 Jun 2019.

Research output: Contribution to conferenceAbstractResearch

Operando monitoring of charging-induced defect formation in battery electrodes by positrons

Klinser, G., Krenn, H., Koller, S. & Würschum, R., 2019, In : Applied Physics Letters. 114, 1, p. 013905 013905.

Research output: Contribution to journalArticleResearchpeer-review

charging
electric batteries
positrons
electrodes
defects

Monitoring of the transition metal oxidation state in Li-ion battery cathodes during charging and discharging by SQUID magnetometry

Klinser, G., Krenn, H., Koller, S., Krenn, H. & Würschum, R., 16 May 2018.

Research output: Contribution to conferenceAbstractResearch

Studying charging and discharging processes in lithium and post lithium ion batteries by operando SQUID magnetometry

Klinser, G., Krenn, H., Koller, S., Hanzu, I., Zettl, R., Krenn, H. & Würschum, R., 25 Sep 2018.

Research output: Contribution to conferenceAbstractResearch

2017

Defects and Charging Processes in Li-Ion Battery Cathodes Studied by Operando Magnetometry and Positron Anihilation

Würschum, R., Topolovec, S., Klinser, G., Sprengel, W., Kren, H., Koller, S., Krenn, H., Hugenschmidt, C., Reiner, M., Gigl, T., Berkermeier, F. & Fiedler, M., 2017, In : Materials Science Forum. 879, p. 2125-2130

Research output: Contribution to journalArticleResearchpeer-review

2016

Charging of lithium cobalt oxide battery cathodes studied by means of magnetometry

Klinser, G., Topolovec, S., Kren, H., Koller, S., Krenn, H. & Würschum, R., 2016, In : Solid State Ionics. 293, p. 64-71 8 p.

Research output: Contribution to journalArticleResearchpeer-review

Continuous monitoring of the bulk oxidation states in LixNi1/3Mn1/3Co1/3O2 during charging and discharging

Klinser, G., Topolovec, S., Kren, H., Koller, S., Gössler, W., Würschum, R. & Krenn, H., 2016, In : Applied Physics Letters. 109, p. 213901

Research output: Contribution to journalArticleResearchpeer-review

Operando magnetic studies of LiₓCoO₂ and LiₓNi1/3Co1/3Mn1/3O₂ battery cathodes during charging and discharging

Klinser, G., Topolovec, S., Krenn, H., Kren, H., Koller, S. & Würschum, R., 2016.

Research output: Contribution to conferencePosterResearch

Operando magnetometry on LixCoO2 during charging/discharging

Topolovec, S., Kren, H., Klinser, G., Koller, S., Krenn, H. & Würschum, R., 2016, In : Journal of solid state electrochemistry. 20, 5, p. 1491-1496 7 p.

Research output: Contribution to journalArticleResearchpeer-review

Operando SQUID magnetometry as tool for studying charging and discharging processes in Lithium ion battery cathodes

Würschum, R., Klinser, G., Topolovec, S., Kren, H., Koller, S. & Krenn, H., 2016.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

2015

About Microwave Solvothermal Synthesis of Solid Solutions LiFexMn1-xPO4/C and Their Electrochemical Properties

Handel, P. M., Stangl, C., God, C., Filzwieser, M., Schröttner, H. & Koller, S., 2015, Book of Abstracts. ., p. 486-486

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

About Microwave Solvothermal Synthesis of Solid Solutions LiFexMn1-xPO4/C and Their Electrochemical Properties

Handel, P. M., Stangl, C., God, C., Filzwieser, M., Uhlig, F., Schröttner, H. & Koller, S., 2015, In : ECS Transactions. 66, 9, p. 127-137

Research output: Contribution to journalArticleResearch

An Investigation of the Impact of Protic Impurities, Different Housing Materials and Silicon on the Thermal Aging of Electrolytes Used in Lithium-Ion Batteries

Handel, P. M., Fauler, G., Kapper, K., Schmuck, M., Stangl, C., Fischer, R., Uhlig, F. & Koller, S., 2015, Book of Abstracts. ., p. 409-409

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Carbonization of Macroporous poly(Dicyclopentadiene)-foams

Kovacic, S., Gruber, K., Koller, S. & Slugovc, C., 2015.

Research output: Contribution to conferencePosterResearch

Charging-induced defects in Li₁₋ₓCoO₂ battery electrodes

Klinser, G., Topolovec, S., Parz, P., Krenn, H., Kren, H., Koller, S. & Würschum, R., 2015.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

In-situ magnetic studies on LiCoₓO₂ battery cathodes during charging/discharging

Topolovec, S., Kren, H., Klinser, G., Koller, S., Krenn, H. & Würschum, R., 2015.

Research output: Contribution to conferencePosterResearch

In-situ SQUID magnetometry during electrochemical charging - A characterization tool for battery electrodes

Topolovec, S., Kren, H., Klinser, G., Koller, S., Krenn, H. & Würschum, R., 2015.

Research output: Contribution to conferencePosterResearch

2014

Characterization of Li charging state of Li₁₋ₓCoO₂ battery cathodes by means of SQUID magnetometry

Klinser, G., Topolovec, S., Krenn, H., Kren, H., Koller, S. & Würschum, R., 2014, p. S. 24.

Research output: Contribution to conferencePosterResearch

Development of a new 3D current collector for the positive electrode in lithium-ion batteries

Pötz, S., Fuchsbichler, B., Schmuck, M. & Koller, S., 2014, In : Journal of applied electrochemistry. 44, 9, p. 989-994

Research output: Contribution to journalArticleResearchpeer-review

Evaluation of Decomposition Products of EMImCl*1.5 AlCl3 During Aluminium Electrodeposition with Different Analytical Methods

Pötz, S., Handel, P. M., Fauler, G., Fuchsbichler, B., Schmuck, M. & Koller, S., 2014, In : RSC Advances . 4, 13, p. 6685-6690

Research output: Contribution to journalArticleResearchpeer-review

2013

Ex-Situ Method for the Determination of Lithium and Fluoride trapped in the SEI of Lithium Ion Cells during prolonged cycling

Kren, H., Hohl, R., Sternad, M., Cifrain, M. & Koller, S., 1 Oct 2013.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

Production of porous carbon materials by carbonization of treated unsaturated polymers

Scharfegger, M., Fuchsbichler, B., Koller, S., Slugovc, C. & Kovacic, S., 5 Dec 2013, Patent No. WO 2013178371 A1

Research output: PatentResearch

SYNTHESIS OF LITHIUM SALT IMIDAZOLE DERIVATIVES AS ELECTROLYTES FOR LITHIUM-ION BATTERIES

Zoidl, M., Koller, S., Schmuck, M., Saf, R. & Wrodnigg, T., 2013.

Research output: Contribution to conferencePosterResearch

The Growth of the SEI and its Influence on Capacity and Power of Li-Ion Batteries

Kren, H., Koller, S., Cifrain, M. & Garche, J., 16 Jan 2013.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

The use of an emulsion templated microcellular poly(dicyclopentadiene-co-norbornene) membrane as separator in lithium-ion batteries

Kovacic, S., Kren, H., Krajnc, P., Koller, S. & Slugovc, C., 2013, In : Macromolecular rapid communications. 34, p. 581-587

Research output: Contribution to journalArticleResearchpeer-review

2012

A New Binder/Solvent System for Lithium Ion Batteries

Scharfegger, M., Kren, H. & Koller, S., 2012.

Research output: Contribution to conferencePosterResearch

Investigation of LiCoO2-electrodes at different degrees of lithium extraction

Parz, P., Puff, W., Würschum, R., Fuchsbichler, B. & Koller, S., 2012, Conference Book, 16th International Conference on Positron Annihilation. ., p. 57-57

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Organische Radikalbatterien (ORB) - Energiespeicherung mit Polymeren

Knall, A-C., Fast, D., Gallas, K., Schinagl, C., Kren, H., Koller, S., Saf, R. & Stelzer, F., 5 Oct 2012.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

2011

High capacity graphite–silicon composite anode material for lithium-ion batteries

Fuchsbichler, B., Stangl, C., Kren, H., Uhlig, F. & Koller, S., 2011, In : Journal of power sources. 196, 5, p. 2889-2892

Research output: Contribution to journalArticleResearchpeer-review

2010

3-Electrode Measurements of Industrially Manufactured Lithium-Ion Batteries

Stangl, C., Bayer, C., Fuchsbichler, B., God, C. & Koller, S., 2010.

Research output: Contribution to conferencePosterResearch

A New High Capacity Graphite/Silicon Composite Material for Lithium Ion Batteries

Fuchsbichler, B., Stangl, C., Kren, H., Sternad, M., Bayer, C., God, C. & Koller, S., 2010.

Research output: Contribution to conferencePosterResearch

Investigation of the oxidative stability of electrolyte systems on 5V cathode materials by insitu mass spectrometry

God, C., Moser, O., Bayer, C., Hohl, R., Stangl, C., Sternad, M., Koller, S., Leitner, K. & Schulz-Dobrick, M., 2010.

Research output: Contribution to conferencePosterResearch

Alternative Binder Systems for Lithium Ion Batteries

Stangl, C., Bayer, C., Fruhwirth, O., Fuchsbichler, B., God, C., Hohl, R., Hojnik, C., Kaltenböck, L., Kren, H., Sternad, M. & Koller, S., 5 Oct 2009.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

A New High Capacity Graphite-Core / Silicon-Shell Composite Material for Lithium Ion Batteries

Fuchsbichler, B., Stangl, C., Kren, H., Bayer, C., God, C., Sternad, M., Hohl, R., Schmuck, M. & Koller, S., 4 Oct 2009.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

Differential Scanning Calorimetry and Thermo Gravimetry with In-Situ Online Mass Spectrometry Studies on Lithium Iron Phosphate Cathodes and Carbon Anodes

Hohl, R., Kren, H., Fuchsbichler, B., Stangl, C., Bayer, C., God, C., Fruhwirth, O., Schmuck, M., Koller, S. & Sternad, M., 4 Oct 2009.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

Lithium-Ionen-Technologie - Die Batterie der Zukunft

Koller, S., 2009, Graz: Verlag der Technischen Universität Graz.

Research output: Book/ReportOther reportResearch

Nitrile transforming enzymes in enantioselective synthesis of non-proteinogenic amino acids

Winkler, M., Meischler, D., Knall, A-C., Schreiner, U., Kulterer, M. R., Koller, S., Kremser, G., Auner, C., Schnitzer, O., Schmuck, M., Enko, B., Leitgeb, A., Harum, B., Hlina, J., Richter, U., Stickler, B. & Klempier, N., 2009.

Research output: Contribution to conferencePosterResearch

Post Mortem Analysis of SEI Components in Industrial Lithium‐Ion Cells for Determination of Ageing Effects

Kren, H., Koller, S., Hohl, R., Sternad, M. & Stelzer, F., 2009.

Research output: Contribution to conferencePosterResearch

The Influence of Fluorinated Aromatic Isocyanates (FAI) on the Cycling Performance of Silicon Anodes in Lithium-Ion Batteries

Sternad, M., Kren, H., Hohl, R., Bayer, C., God, C., Stangl, C., Fuchsbichler, B., Koller, S., Schmuck, M., Takehara, M., Ue, M. & Winter, M., 2009.

Research output: Contribution to conferencePosterResearch

2008

Cathodic decomposition processes on LiFePO4 and LiMn2O4 electrodes - leading to aging in high power Lithium-Ion Batteries

Kren, H., Sternad, M., Fuchsbichler, B., Koller, S., Schmuck, M., Bayer, C., God, C., Lux, S., Stangl, C. & Winter, M., 2008.

Research output: Contribution to conferencePosterResearch

Different Room Temperature Ionic Liquids and their Mixtures as Electrolytes for Graphite Negative Electrodes in Lithium Ion Batteries

Lux, F. S., Schmuck, M., Balducci, A., Fuchsbichler, B., Stangl, C., Kren, H., Sternad, M., God, C., Bayer, C., Koller, S., Appetecchi, G., Passerini, S. & Winter, M., 2008.

Research output: Contribution to conferencePosterResearch

Functional Binders as Basic Fundament for Applicable Lithium-Alloy Based Anodes in Lithium Ion Batteries

Koller, S., Fuchsbichler, B., Schmuck, M., Bayer, C., God, C., Lux, S. F., Stangl, C., Kren, H., Sternad, M. & Winter, M., 29 Jun 2008.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

Germanium for High Capacity Lithium Ion Battery Anodes

Fuchsbichler, B., Kren, H., Schmuck, M., Sternad, M., Bayer, C., God, C., Lux, S. F., Stangl, C., Fischer, R., Hutter, L., Uhlig, F. & Koller, S., 2008.

Research output: Contribution to conferencePosterResearch

Influence of Pressure on the Cycling Stability of Silicon-Electrodes

Fuchsbichler, B., Kren, H., Schmuck, M., Sternad, M., Bayer, C., God, C., Lux, S. F., Stangl, C. & Koller, S., 2008.

Research output: Contribution to conferencePosterResearch

Influence of pressure on the cycling stability of silicon electrodes in lithium-ion batteries

Stangl, C., Bayer, C., God, C., Fuchsbichler, B., Lux, S. F., Schmuck, M., Koller, S., Kren, H., Sternad, M. & Winter, M., 2008.

Research output: Contribution to conferencePosterResearch

Investigating the SEI-layer on Silicon Insertion Electrodes of Lithium-Ion Batteries by Pyrolysis-GC/MS

Sternad, M., Kren, H., Bayer, C., God, C., Lux, S. F., Stangl, C., Fuchsbichler, B., Koller, S., Schmuck, M., Takehara, M., Ue, M. & Winter, M., 12 Oct 2008.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch