Our partners from the University of Ljubljana have published a groundbreaking article as part of the NEXTCELL project. Titled Enhanced Porous Electrode Theory Based Electrochemical Model for Higher Fidelity Modelling and Deciphering of the EIS Spectra, this work provides a significant advancement in the understanding of electrochemical impedance spectroscopy (EIS), a critical tool for non-invasive battery characterization. The research has been published in the Journal of The Electrochemical Society, which embraces the Open Science principles we stand for and is now available for anyone interested in exploring these innovations.

The paper introduces a novel high-fidelity electrochemical model that successfully replicates complex EIS spectra, offering more accurate insights into internal battery phenomena. By extending the porous electrode model and incorporating innovative sub-models for phenomena like the double layer at various interfaces and charged species transport, the authors have made substantial progress in deciphering overlapping internal processes in batteries. This development enhances our ability to interpret EIS spectra and paves the way for advanced virtual sensors in future battery management systems.

Get it on our “Downloads” section!