Regensburg 2025 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
CPP: Fachverband Chemische Physik und Polymerphysik
CPP 32: Poster Session II
CPP 32.23: Poster
Donnerstag, 20. März 2025, 09:30–12:00, P3
Organic polyaniline-based cathode materials — •Meriem N. Boudjenane1, Friederike Ganster2, Sebastian Mühlbauer1, and Lucas P. Kreuzer1 — 1Forschungs-Neutronenquelle Heinz Maier-Leibnitz (FRM II), 85748 Garching, Germany — 2TUM School of Natural Sciences, Chair for Functional Materials, 85748 Garching, Germany
Organic cathode materials feature tuneable structures, abundant active sites, and compatibility with multivalent charge carriers, thereby allowing to overcome challenges typically faced in inorganic cathode systems such as structural instability, and environmental hazards. We focus on the development of polyaniline (PANI) based cathodes. PANI, a conductive polymer, has demonstrated high capacity, excellent rate capability and fast ionic diffusion. Cellulose-based materials such as carboxymethyl cellulose (CMC) are used as binders and enhance the overall stability and electrochemical performance. By tuning parameters such as material composition, ionic strength, water content, and temperature, we elucidate how the conductivity and electrochemical stability of the PANI-based cathode can be optimized. Advanced techniques like X-ray diffraction, scanning and transmission electron microscopy, and electrochemical analysis provide deep insights into the structure-function relationship of the cathode materials while operando Raman spectroscopy will give insights into the charge/discharge mechanism and respective redox reactions, guiding the development of high-performance organic cathodes.
Keywords: Battery; Organic cathode; Polyaniline; Cellulose