New polymer electrolytes for high-performance rechargeable batteries

New polymer electrolytes for high-performance rechargeable batteries

Presenter: Dominik Steinle
Co-authors:
Huu-Dat Nguyen, Matthias Kuenzel, Elie Paillard, Stefano Passerini, Cristina Iojoiu, Dominic Bresser
Title:
New polymer electrolytes for high-performance rechargeable batteries
Affiliation: Karlsruhe Institute of Technology

Abstract

Polymer electrolytes are expected to contribute to the realization of safer rechargeable batteries and may, moreover, enable the employment of metal anodes to further improve their energy density.[1,2] Beside mechanical strength, three features are crucial: (i) Sufficient ionic conductivity, (ii) avoidance of reversed cell polarization, and (iii) the homogeneous metal deposition upon charge to avoid dendrite formation.[2]
Here, we present our approach to address these requirements by designing different functional blocks and introducing strongly coordinating molecular “transporters” to decouple polymer dynamics and charge transport,[3,4] while additionally allowing for the stable cycling of high-energy Li[Ni0.6Mn0.2Co0.2]O2.

[1] J. Kalhoff et al., ChemSusChem 2015, 8, 2154.
[2] D. T. Hallinan, N. P. Balsara, Annu. Rev. Mater. Res. 2013, 43, 503.
[3] H.-D. Nguyen et al., Energy Environ. Sci. 2018, 11, 3298.
[4] D. Bresser et al., Mol. Syst. Des. Eng. 2019, DOI: 10.1039/c9me00038k

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Dominik Steinle
Dominik Steinle
Dominik Steinle is presently working as researcher at the Helmholtz Institute Ulm (HIU) associated with the Karlsruhe Institute of Technology (KIT) in Germany in the group of Dr. Dominic Bresser, focusing on the investigation of polymer-based electrolytes for lithium batteries, including the development of new tools for their comprehensive characterization.