TU BRAUNSCHWEIG

EW-7 Junior Research Group Solid-State Battery Materials and Electrodes

Welcome to the Solid-State Battery Materials and Electrodes group. Our group is located at the Battery LabFactory Braunschweig (BLB) and at the Institute of Particle Technology, Faculty of Mechanical Engineering, TU Braunschweig. We are interested in the manufacturing, processing and characterization of solid electrolytes for solid-state batteries as future energy storage systems used in vehicles and aircraft.

Solid-state batteries based on both lithium-ion and lithium-sulfur cells are regarded as promising future energy storage systems, particularly for mobility applications. In solid-state batteries, solid polymers or oxides are used as solid electrolytes. Compared to liquid electrolytes, solid electrolytes provide significantly higher safety levels and simpler cell structures. Moreover, solid electrolytes can be used in combination with active materials that are currently problematic for continuous operation. The use of metallic lithium as the anode and the elimination of the separator are also expected to double the energy density, which is very important in mobility application (vehicle and aircraft). Furthermore, the higher mechanical load-bearing capacity of solid-state batteries offers a key advantage with regard to the use in aircraft.

Due to all these reasons, solid-state batteries have been proved as a key future focus topic. However, there are still some challenges which need to be overcome. On the one hand, these battery systems require significantly more complex materials in comparison to conventional lithium-ion batteries. For example, in order to ensure stability against solid electrolytes, it could be a possibility to apply coatings in the nanometer range to active material particles. For the production of these materials, processes are being developed in the Battery LabFactory Braunschweig, bearing in mind the production of sufficient quantities of material for further processing into larger cells. On the other hand, the production of solid-state battery electrodes is currently limited to the laboratory scale, since the direct transfer of processing techniques for conventional lithium-ion batteries is not possible. With this aim, new processes for manufacturing the electrodes are being researched depending on the used materials.

Group leader:
  • Dipl.-Ing. Sabrina Zellmer, Battery LabFactory Braunschweig, Institut für Partikeltechnik, s.zellmer@tu-bs.de
scientist:
Publikationen in Bezug auf die Maßnahme:
  1. Titscher, P., Zellmer, S., Burmeister, C.F., Schmidt, L.O., Breitung-Faes, S., Garnweitner, G., Kwade, A. Evaluation of Processes for Mechanical Manufacturing of Composite Materials for Li-Sulfur Batteries (2018) Chemie-Ingenieur-Technik, 90 (4), pp. 513-520. DOI: 10.1002/cite.201700121
  2. Zellmer, S., Titscher, P., Wienken, E., Kwade, A., Garnweitner, G.; Fabrication of carbon-sulphur composites via a vibration mill process as cathode material for lithium sulphur batteries (2017) Energy Storage Materials, 9, pp. 70-77. DOI: 10.1016/j.ensm.2017.06.010
Weitere Publikationen:
  1. Wahl, T., Zellmer, S., Hanisch, J., Garnweitner, G., Ahlswede, E., Thin indium tin oxide nanoparticle films as hole transport layer in inverted organic solar cells (2016) Thin Solid Films, 616, pp. 419-424. DOI: 10.1016/j.tsf.2016.09.012
  2. Zellmer, S., Lindenau, M., Michel, S., Garnweitner, G., Schilde, C., Influence of surface modification on structure formation and micromechanical properties of spray-dried silica aggregates (2016) Journal of Colloid and Interface Science, 464, pp. 183-190. DOI: 10.1016/j.jcis.2015.11.028
  3. Einert, M., Ostermann, R., Weller, T., Zellmer, S., Garnweitner, G., Smarsly, B.M., Marschall, R., Hollow ?-Fe2O3 nanofibres for solar water oxidation: improving the photoelectrochemical performance by formation of ?-Fe2O3/ITO-composite photoanodes, (2016) Journal of Materials Chemistry A, 4 (47), pp. 18444-18456. DOI: 10.1039/c6ta06979g
  4. Runge, G., Preller, T., Zellmer, S., Blankemeyer, S., Kreuz, M., Garnweitner, G., Raatz, A., SpineMan: Design of a soft robotic spine-like manipulator for safe human-robot interaction (2015) IEEE International Conference on Intelligent Robots and Systems, 2015-December, art. no. 7353508, pp. 1103-1110. DOI: 10.1109/IROS.2015.7353508
  5. Zellmer, S., Garnweitner, G., Breinlinger, T., Kraft, T., Schilde, C., Hierarchical Structure Formation of Nanoparticulate Spray-Dried Composite Aggregates (2015) ACS Nano, 9 (11), pp. 10749-10757. DOI: 10.1021/acsnano.5b05220
  6. Zellmer, S., Kockmann, A., Dosch, I., Temel, B., Garnweitner, G., Aluminum zinc oxide nanostructures with customized size and shape by non-aqueous synthesis (2015) CrystEngComm, 17 (36), pp. 6878-6883. DOI: 10.1039/c5ce00629e
  7. Zellmer, S., Grote, C., Cheema, T.A., Garnweitner, G., Small-molecule stabilization mechanisms of metal oxide nanoparticles (2015) Colloid Process Engineering, pp. 73-92. DOI: 10.1007/978-3-319-15129-8_4
  8. Kockmann, A., Hesselbach, J., Zellmer, S., Kwade, A., Garnweitner, G., Facile surface tailoring of metal oxide nanoparticles via a two-step modification approach (2015) RSC Advances, 5 (75), pp. 60993-60999. DOI: 10.1039/c5ra08932h
  9. Runge, G., Zellmer, S., Preller, T., Garnweitner, G., Raatz, A., Actuation principles for the bioinspired soft robotic manipulator spineman(2015) 2015 IEEE International Conference on Robotics and Biomimetics, IEEE-ROBIO 2015, art. no. 7418955, pp. 1329-1336. DOI: 10.1109/ROBIO.2015.7418955


Dipl.-Ing. Sabrina Zellmer

Head of the Junior Research Group Solid-State Battery Materials and Electrodes

Technische Universität Braunschweig
Institut für Partikeltechnik
Battery LabFactory Braunschweig (BLB)
Langer Kamp 8, 5. OG., R. 514 und
Volkmaroder Straße 5, R. 014

Tel.: +49 (531) 391-94656 und 9621
E-Mail:s.zellmer@tu-bs.de

  last changed 12.11.2018
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