Research Areas

The current research areas focus on the following topics:
  • Laser structuring and laser annealing of electrode thin and thick layers as well as current arresters to improve the electrochemical performance (service life, high current capability) of lithium-ion batteries (LIB) and to increase the energy and power density at cell level (3D battery concept).
  • Laser-induced plasma spectroscopy (LIBS) on battery materials as an analysis method for quality-controlled slip development and for the investigation and visualization of degradation processes (post mortem) under high current conditions. 2D surface mapping, depth profile (3D), multi-element analysis.
  • Large-area laser material processing of battery materials (anode / cathode / separator / current conductor) in the roll-to-roll (R2R) process. Laser structuring in the µm and nm range, laser cutting, notches, slits, laser ablation.
  • Electrochemical analyzes of electrode materials to evaluate cell chemistry and service life. Galvanostatic analysis, impedance spectroscopy (EIS), cyclovoltammertie (CV), galvanostatic intermittent titration technique (GITT).
  • Development of surface functionalizations (e.g. wetting behavior), micro- and nano-structuring of surfaces and thin layers for biological and microfluidic applications (e.g. in combination with micro-printing techniques).
  • Microstructuring of polymers with CO2 and UV laser radiation.
  • LIFT & SMI (structuring of thin layers).

Laserstrukturierte LiCoO2 Kathoden­dünnschicht (links) und nano­strukturierte a-C:H Schicht (rechts).

Lasergefertigte Formeinsätze aus Nickel (links) und Stahl (rechts).

Entwicklung von Bauteilen auf Polymerbasis zur Analyse von Zellsystemen.

Links: Lasermikroschweißnaht in Aluminiumlegierung AlMg3.

Rechts: Durch Laserstrukturierung und Laserdurchstrahlschweißen gefertigter Mikrofluidikchip.

Lasergefertigte Zahnräder aus

Polyimid (Kapton®);

Durchmesser 150-500 µm.