Dresden 2026 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 17: Poster I

CPP 17.31: Poster

Monday, March 9, 2026, 19:00–21:00, P5

A gel polymer electrolyte interface layer-amphiphilic polymer/salt composite nanoarray for lithium metal batteries — •Thomas Bullinger, Ming Yang, and Peter Müller-Buschbaum — TUM School of Natural Sciences, Chair for Functional Materials, Garching, Germany

Research on lithium-ion batteries has been focused on improving energy density, which is mainly limited by conventional graphite anodes. Therefore, lithium metal has emerged as a desirable anode material due to its high energy density. However, it easily reacts during cycling, thus forming lithium dendrites, which can lead to short-circuiting of the battery. As liquid electrolytes cannot solve this problem, solid-state polymer electrolytes have shown promise as an alternative, but their ionic conductivity at room temperature limits their practical use, leading to the compromise of gel polymer electrolytes. In this project the block copolymer P2VP-b-PEO together with the lithium salt lithium nitrate, both dissolved in tetrahydrofuran (THF), surprisingly lead to the solvent phase changing to a gel polymer, which was then used as the electrolyte in coin cells. For the cycling and rate performance tests, Li||LFP batteries were investigated. Further experiments include cycling voltammetry (CV), linear sweep voltammetry (LSV), Tafel curves and impedance spectroscopy.

Keywords: Lithium-Ion Batteries; Gel Polymer Electrolyte; P2vP-b-PEO