Regensburg 2022 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
CPP: Fachverband Chemische Physik und Polymerphysik
CPP 12: Poster 1
CPP 12.13: Poster
Montag, 5. September 2022, 18:00–20:00, P1
Poly((trifluoromethane)sulfonimide lithium styrene) as single-ion conducting binder for lithium iron phosphate electrodes in lithium-ion batteries — •Fabian A.C. Apfelbeck1, Julian E. Heger1, Tianfu Guan1, Matthias Schwartzkopf2, Stephan V. Roth2,3, and Peter Müller-Buschbaum1,4 — 1TU München, Physik- Department, LS Funktionelle Materialien, 85748 Garching — 2DESY, 22607 Hamburg — 3Royal Institute of Technology KTH, 100 44 Stockholm — 4MLZ, TU München, 85748 Garching
Lithium-ion batteries turned out as an indispensable energy supplier in modern society which however suffers from safety concerns due to the flammability of the liquid electrolyte. Solid polymer electrolytes (SPEs) represent a safe alternative to conventional electrolytes. Especially single-ion conducting polymers (SICPs), which have the anion covalently bonded to the backbone of the polymer and thus a theoretical transference number of unity, attracted strong interest in battery research. For full-cell performance investigation of these battery cells, the ion-conducting polymer electrolyte is often used as binder instead of the neutral polyvinylidenfluorid (PVDF) in order to enhance ion conduction in the electrode and decrease the interfacial contact. Here, lithium iron phosphate (LFP) cathodes with different weight ratios of PVDF and the SICP poly((trifluoromethane)sulfonimide lithium styrene) (PSTFSILi) as binders are prepared and analysed with real (scanning electron microscopy) and reciprocal (grazing-incidence small/wide angle x-ray scattering) space techniques.