Dr. Morten Wetjen


Research Field

Li-Ion Battery Research, Silicon Anode Research, Neutron depth profiling

  • Preparation and Characterization of silicon-based anodes
  • Battery testing in full-cells vs. LFP and NMC cathodes
  • Investigation of the morphological changes of silicon nanoparticles

Scientific Contributions

Articles

M. Trunk,= M. Wetjen,= L. Werner, R. Gernhäuser, B. Märkisch, Zs. Révay, H.A. Gasteiger, R. Gilles, Materials science applications of Neutron Depth Profiling at the PGAA facility of Heinz Maier-Leibnitz Zentrum, Materials Characterization, 146, 127 (2018)

M. Wetjen,= M. Trunk,= L. Werner, R. Gernhäuser, B. Märkisch, Zs. Révay, R. Gilles, H.A. Gasteiger, Quantifying the Distribution of Electrolyte Decomposition Products in Silicon-Graphite Electrodes by Neutron Depth Profiling, Journal of The Electrochemical Society, 165 (10), A2340 (2018)

M. Wetjen, S. Solchenbach, D. Pritzl, J. Hou, V. Tileli, H.A. Gasteiger, Morphological Changes of Silicon Nanoparticles and the Influence of Cutoff Potentials in Silicon-Graphite Electrodes, Journal of The Electrochemical Society165 (7), A1503 (2018)

S. Solchenbach, M. Wetjen, D. Pritzl, K.U. Schwenke, H.A. Gasteiger, Lithium Oxalate as Capacity and Cycle-Life Enhancer in LNMO/Graphite and LNMO/SiG Full Cells, Journal of The Electrochemical Society, 165 (3), A512 (2018)

M. Wetjen, D. Pritzl, R. Jung, S. Solchenbach, R. Ghadimi, H.A. Gasteiger, Differentiating the Degradation Phenomena in Silicon-Graphite Electrodes for Lithium-Ion Batteries, Journal of The Electrochemical Society, 164 (12), A2840 (2017)

D. Pritzl, S. Solchenbach, M. Wetjen, H.A. Gasteiger, Analysis of Vinylene Carbonate (VC) as Additive in Graphite/LiNi0.5Mn1.5O4 Cells, Journal of The Electrochemical Society, 164 (12), A2625 (2017)

M. Wetjen, G.-T. Kim, M. Joost, M. Winter, S. Passerini, Thermal and electrochemical properties of PEO-LiTFSI-Pyr14TFSI-based composite cathodes, incorporating 4 V-class cathode active materials, Journal of Power Sources, 243, 846 (2014)

M. Wetjen, G.-T. Kim, M. Joost, M. Winter, S. Passerini, Temperature dependence of electrochemical properties of cross-linked poly(ethylene oxide)-lithium bis(trifluoromethanesulfonyl)imide-N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide solid polymer electrolytes for lithium batteries, Electrochimica Acta, 87, 779 (2013)

M. Wetjen, M.A. Navarra, S. Panero, S. Passerini, B. Scrosati, J. Hassoun, Composite Poly(ethylene oxide) Electrolytes Plasticized by N-Alkyl-N-butylpyrrolidinium Bis(trifluoromethane-sulfonyl)imide for Lithium Batteries, ChemSusChem6, 1037 (2013)


Oral Presentations

M. Wetjen,= M. Trunk,= L. Werner, R. Gernhäuser, B. Märkisch, Zs. Révay, R. Gilles, H.A. Gasteiger, Investigating the Distribution of Electrolyte Decomposition Products (SEI) in Silicon Electrodes by Neutron Depth Profiling, ECS AiMES Meeting, Cancun, Mexico (2018)

M. Wetjen, D. Pritzl, S. Solchenbach, J. Hou, V. Tileli, H.A. Gasteiger, "Less is More!" - Decreasing Silicon Particle Degradation By Limiting the Delithiation Cut-off Potential, 232nd ECS Meeting, National Harbor, MD, USA (2017)

M. Wetjen, G. Hong, S. Solchenbach, D. Pritzl, H.A. Gasteiger, DiFEC the Rescue? Evaluating Di-Fluoroethylene Carbonate As Additive for Silicon Electrodes, 231st ECS Meeting, New Orleans, LA, USA (2017)

M. Wetjen, R. Jung, D. Pritzl, H.A. Gasteiger, Silicon-graphite Composite Electrodes for High Energy Density Li-ion battery Applications, ECS PRiME Meeting, Honolulu, HI, USA (2016)

 

Poster Presentations

M. Wetjen, A.T.S. Freiberg, D. Pritzl, S. Ostermeyer, H.A. Gasteiger, Mitigating the Impedance Growth in SiG//NMC811 Lithium-Ion Batteries by Prelithiation of the Silicon-Graphite Anode, 19th IMLB Meeting, Kyoto, Japan (2018)

M. Wetjen, S. Niesen, D. Pritzl, H.A. Gasteiger, Investigating the Porosity and Tortuosity of Silicon-Graphite Electrodes, 232nd ECS Meeting, National Harbor, MD, USA (2017)

M. Wetjen, S. Solchenbach, D. Pritzl, R. Jung, H.A. Gasteiger, Quantifying the Degradation Phenomena of Silicon-based Electrodes in Lithium-Ion Batteries, MSE Colloquium, Munich, Germany (2017)

M. Wetjen, D. Pritzl, R. Jung, S. Solchenbach, H.A. Gasteiger, Reducing Electrolyte Consumption of Silicon-Electrodes through Capacity-Limited Cycling, 231st ECS Meeting, New Orleans, LA, USA (2017)

M. Wetjen, D. Pritzl, R. Jung, S. Solchenbach, H.A. Gasteiger, FEC, what else? Understanding the Degradation Mechanisms in Silicon-Graphite Composite Electrodes, 5th Workshop Lithium-Sulfur-Batteries, Dresden, Germany (2016)


Curriculum Vitae

Scientific Career:

5/2018-7/2018: Research stay, Tokyo University of Science (Prof. Dr. Shinichi Komaba), Tokyo, Japan

2/2013-6/2013: Internship, Robert Bosch Research and Technology Center, Palo Alto, CA, USA

9/2011-11/2011: Research stay, Universita Sapienza (Prof. Dr. Bruno Scrosati), Rome, Italy

10/2010-5/2012: Student assistant, MEET Battery Research Center, Münster, Germany

12/2009-8/2010: Student assistant, Fraunhofer IFAM, Bremen, Germany

Education:

10/2010-5/2012: Westfälische Wilhelms-Universität Münster, M.Sc. Chemistry (Thesis: "High Voltage Composite Cathode for Lithium Metal Polymer Batteries", Prof. Dr. Stefano Passerini, Prof. Dr. Martin Winter)

10/2007-8/2010: Universität Bremen, B.Sc. Chemistry (Thesis: "Construction of a Cyclic Voltammetry Cell and Characterization of Carbon-based Substrates", Prof. Dr. Marcus Bäumer)