3D Printable Polymer Electrolytes for Ionic Conduction based on Protic Ionic Liquids

Alyna Lange; Sajal Arwish; Aurelie Rensonnet; Khalid Elamin; Iqbal Abdurrokhman; Zaneta Wojnarowska; Mark Rosenwinkel; Cedric Malherbe; Monika Schoenhoff; Kerstin Zehbe; Andreas Taubert

doi:10.1002/cphc.202400849

3D Printable Polymer Electrolytes for Ionic Conduction based on Protic Ionic Liquids

Chemphyschem. 2024 Nov 10:e202400849. doi: 10.1002/cphc.202400849. Online ahead of print.

Authors

Affiliations

¹ Universitat Potsdam, Chemistry, GERMANY.
² Universität Münster, Physical Chemistry, GERMANY.
³ Universite de Liege, Mass Spectrometry Laboratory, BELGIUM.
⁴ Chalmers tekniska hogskola, CHemistry & Chemical Engineering, SWEDEN.
⁵ Chalmers tekniska hogskola, Chemistry & Chemical Engineering, SWEDEN.
⁶ Silesian University of Technology - Katowice Campus, Physics, POLAND.
⁷ Liege University, Mass Spectrometry Laboratory, BELGIUM.
⁸ University of Potsdam: Universitat Potsdam, Institute of Chemistry, Karl-Liebknecht-Str. 24-25, 14476, Golm, GERMANY.

PMID: 39523659
DOI: 10.1002/cphc.202400849

Abstract

A range of protic ionic liquids (PILs) based on tri-n-alkylammonium cations and mesylate/triflate anions were incorporated into a polymer matrix to form ionogels (IGs). These systems were investigated for their thermal and electrochemical behaviour, as well as under the aspect of ion motion via PFG-NMR. The ionic conductivities of the ILs/IGs are in the range of 10‑4 - 10-3 Scm-1 at elevated temperatures and the diffusion coefficients were around 10‑11 m2s-1. Successful 3D printing of an IG with 70 wt% of IL is possible via stereolithography approaches, opening up applications in, e.g., structured ion-conductive membranes.

Keywords: 3D printing; ion conduction; polymer electrolytes; room temperature ionic liquids; stereolithography.