Date/Time: 04-04-2018 - Wednesday - 05:00 PM - 07:00 PM
Roland Roesch1 2 Tina Mede1 2 Alexandra Lex-Balducci1 2 Ulrich S. Schubert1 2 Harald Hoppe1 2

1, University Jena, Jena, , Germany
2, University Jena, Jena, , Germany

Thin film energy storage systems offer the possibility of roll-to-roll processing on flexible substrates by use of different printing techniques, which enables cost-efficient large scale production. By the use of organic radical compounds as electrodes, such devices are able to combine a favorable environmental impact, since they do not rely on rare materials, with superior charging times and discharging power. Furthermore, an all-solid state device architecture is desirable for such devices, since that potentially increases safety and long-life operation significantly – leakage of liquid electrolytes is disabled by design a priori. Approaches for solid state electrolytes include different types of polymer electrolytes, such as dry polymer electrolytes, plasticized polymer salt complexes, gel polymer electrolytes, polymer-in-salt electrolytes and ceramic polymer electrolytes.
In this work we present an all-solid state thin film battery with electrodes based on polymers of organic radicals, such as TEMPO (2,2,6,6-tetramethyl-4-piperidinyl-N-oxyl radical) [1] and TCAQ (tetracyano-9,10-anthraquinonedimethane) [2], and an ionic liquid gel electrolyte based on 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide in a PMMA network [3, 4]. Electrodes and electrolyte were deposited out of liquid phase and dried thereafter resulting in a layer stack thickness in total of approximately 1 µm, including the charge collectors. Results on energy and power density as well as charging and discharging behavior will be presented.

[1] T. Janoschka et al.; Advanced Energy Materials 2013, 3, 1025
[2] B. Häupler et al.; Journal of Materials Chemistry A 2014, 2, 8999
[3] M.A. Susan et al., Journal of the American Chemical Society 2005, 127, 4976
[4] J. Jensen et al.; Journal of Polymer Science 2012, 50, 536

Meeting Program

5:00 PM–7:00 PM Apr 4, 2018

PCC North, 300 Level, Exhibit Hall C-E