Tailored Charge Transfer Kinetics in Organic Radical Batteries – A Joint Synthetic-Theoretical Approach

01 September 2022, Version 1
This content is a preprint and has not undergone peer review at the time of posting.


The development of sustainable energy storage devices is crucial for the transformation of our energy management. In this scope, organic batteries attracted considerable attention. To overcome the shortcomings of typically applied materials from the classes of redox-active conjugated polymers, i.e., unstable cell voltages, and soft matter embedded stable organic radicals, i.e., low conductivity, we introduce a novel design concept integrating such stable radicals within a conductive polymer backbone. In our present theory-driven design approach redox-active TEMPOs were incorporated in thiophene-based polymer model systems, while structure-property relationships governing the thermodynamic properties as well as the charge transfer kinetics underlying the charging and discharging processes were investigated in a systematical approach. Thereby, the impact of the substitution pattern, the length as well as the nature of the chemical linker and the ratio of TEMPO and thiophene units was studied using state-of-the-art quantum chemical and quantum dynamical simulations for a set of six molecular model systems. Finally, two promising candidates were synthesized and electrochemically characterized – paving the way to applications in the frame of novel organic radical batteries.


Organic radical batteries
Charge transfer
Multiconfigurational calculations

Supplementary materials

Supporting Information: Tailored Charge Transfer Kinetics in Organic Radical Batteries – A Joint Synthetic-Theoretical Approach
Supporting information


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