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. |