Berlin 2018 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 42: Materials for Energy Storage I (joint session KFM/CPP)

CPP 42.1: Hauptvortrag

Mittwoch, 14. März 2018, 09:30–10:00, EMH 025

Resource-efficient dielectric materials for short-time energy storage — •Stephan Krohns — Experimental Physics V, University of Augsburg, 86159 Augsburg

Materials exhibiting so-called colossal effects have an enormous potential for future use in correlated electronics, including capacitors for energy storage. The search for functional dielectrics showing colossal dielectric constants (CDC) is still an active field of research [1].

Beside the pure materials properties, also the scarcity and possible future shortages of used key elements in this modern technology is in the focus of scientific interest. An imminent challenge of modern materials science is the development of materials with less critical elements that have comparable or better functionalities than those currently used.

In this talk, I address the pure materials science perspective focusing on the research of CDC materials like crystals showing barrier layer capacitances [2] as well as ionic liquids. The latter are promising candidates for electrolytes used in supercapacitors [3]. Furthermore, I present a practical guideline for basic research implementing resource strategy aspects [4] as well as a possible scenario for the system and market integration of those short-term energy storages [5].

[1] S. Krohns et al., Nat. Mat. 10, 899 (2011).

[2] E. Ruff et al., Phys. Rev. Lett. 118, 036803 (2017).

[3] P. Sippel et al., Sci. Rep. 5, 13922 (2015).

[4] Ch. Helbig et al., Sust. Mat. & Techn. 12, 1 (2017).

[5] M. Hassler et al., OR Spectrum 38, 633 (2016).