Dresden 2026 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 46: Poster II

CPP 46.50: Poster

Thursday, March 12, 2026, 09:30–11:30, P5

Investigation of structure and transport properties in redox-active polymers — •Laura Hölzer¹ and Diddo Diddens² — ¹Institut für Physikalische Chemie, Universität Münster, 48149 Münster, Germany — ²Helmholtz Institute Münster, Forschungszentrum Jülich GmbH, 48149 Münster, Germany

Organic radical batteries are seen as an alternative to traditional lithium-ion batteries. Their advantages include fast charge and discharge processes, and mechanical flexibility. However, high power densities are required for their application in the Internet of Things. To achieve this, good charge transport is essential. This transport mechanism is guided by two factors: the movement of electrons along the polymer, which is dictated by its structure, and the compensation of charge by counterions, which affects their mobility. The focus here is on a cathode material consisting of a redox-active polymer such as poly(2,2,6,6-tetramethylpiperidinyloxy-4-ylmethacrylate) (PTMA), which is in contact with a solvent. Classical molecular dynamics simulations of a PTMA cathode model are carried out. These provide insights into the structural properties and dynamics of charge transport. An outlook on the behaviour at interfaces around the cathode is given.

Keywords: organic radical batteries; redox-active polymer; molecular dynamics simulation