Mitarbeiterinnen und Mitarbeiter der Arbeitsgruppe Batterien- Zellcharakterisierung und -modellierung

Dynamic characterization of Li-ion batteries with Electrochemical Impedance Spectroscopy (EIS) and Nonlinear Frequency Response Analysis (NFRA)

Quantitative Analysis of the Nonlinear Frequency Response (also known as Nonlinear Electrochemical Impedance Spectroscopy) for Lithium-Ion Batteries

• Fully nonlinear Newman-type Pseudo-2D models in time-domain and frequency-domain
• Experimental characterization of commercial cells and custom-made cells with production errors
• Development of NFR-based detection of Lithium-Plating for LiB anodes
• Model-based quantification of the potentially hazardous metallic lithium

Multiphysical Simulation of large format Lithium-Ion-Batteries

• Coupled electro-thermal-mechanical modelling
• Multiscale modeling to investigate non-uniformities in large format batteries
• Experimental characterization of commercial and experimental cells under mechanical pressure