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Battery research: Selective laser sintering for use in future batteries
  • Bachelor and Master Thesis
    • Battery research: Selective laser sintering for use in future batteries
    • Evaluation of the influence of particle contamination depending on the separator and compression using the Hi-Pot Test
    • Contacting of metal-polymer current collectors for use in cylindrical cells: Concept development and validation
    • Optimization of a bending test for the mechanical characterization of battery electrodes
    • Influence of cutting process and free cut edge geometry on the Al-5083 fatigue strength
    • Design and testing of a device and method for the in-situ calibration of force sensors in the die casting process
    • Laser beam assembly of lithium metal anodes
    • Laser pretreatment of die-cast aluminium for in-mold assembly with plastic
    • Prediction of component properties in high-pressure die casting using machine learning
    • Remelting effect on temperature field, residual stress, and distortion in WAAM components
    • Residual stress variations during fabrication
    • Conversion and test of a heating system
    • Investigation of the local suitability for adhesive bonding of aluminium die-cast components
    • Investigation of the local suitability for welding of aluminium die-cast components
    • Influence of thermal cutting processes on the quality of the cut edges
    • Toughness of high strength welded steels

Battery research: Selective laser sintering for use in future batteries

Background

At present, massive research is being conducted into a successor technology for the classic lithium-ion batteries. One of the most promising approaches for future energy storage systems is the so-called solid state battery, as ionically conductive solids are used instead of liquid electrolytes. This substitution is expected to result in considerably higher energy densities, while the use of a non-flammable solid will also increase safety. This new technology, however, brings new challenges for the manufacturing process. For example, an energy-intensive furnace sintering process is currently used for the layered composite production of cathode and solid electrolyte.

 

 

Task

Within the scope of several student projects the laser sintering of a solid material for future solid state batteries is to be evaluated. Thereby, the laser-material interaction is analyzed by means of different laser parameters and subsequently evaluated by different characterization methods (optical, thermal, mechanical).

Elektroauto

In the context of a student thesis the following fields of activity arise:

Literature research on the current state of research:

  • Solid electrolytes (oxide ceramics, polymers, sulphides)
  • Comparison to conventional batteries with liquid electrolytes
  • Laser use in battery production
  • Laser Sintering

 

Parameter studies to identify the interaction of laser parameters and material:

  • Variation of laser parameters like power, frequency, speed, etc.

  • Use of different laser sources

 

Evaluation using different techniques to characterize the material:

  • Light microscope
  • Laser Scanning Microscope (LSM)
  • Scanning electron microscope (SEM)
  • Thermography
    • Characterization of the mechanical properties of manufactured specimens
    • Development of evaluation tools
    • Interpretation of the results

Amount of work

The scope of the work is scalable and therefore allows both bachelor and master thesis. For a detailed task description, please contact the supervising research assistant.

Requirements

  • Independent, structured working methods and reliable documentation
  • Very good knowledge of German and English
  • Interest in scientific work
  • Known requirements of the faculty for the submission of student papers

Start

After arrangement (immediately)

 

 

Houssin Wehbe
+ 49 531 391 95596
h.wehbe(at)tu-braunschweig.de
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