A structural study on ionic-liquid-based polymer electrolyte membranes
Journal article, 2007

We have investigated novel proton conducting membranes synthesized through the gelification of poly(vinylidene fluoride-co-hexafluoropropylene) in aprotic ionic liquids. Mobile protons were introduced by doping the system with the strong bis(trifluoromethanesulfonyl)imide acid (HTFSI), which is chemically compatible with the ionic liquids through the common TFSI- anion. The obtained membranes are thermally stable up to 115°C set by the melting of the polymer phase. At this temperature, the conductivity is on the order of 10-2 S cm-1. Raman and infrared spectroscopy show no chemical interactions between the components, indicating that the bulklike nature of the doped ionic liquids preserved within the membrane, as is the thermal stability and the high conductivity. © 2007 The Electrochemical Society.

Author

Anna Martinelli

Chalmers, Applied Physics, Condensed Matter Physics

Aleksandar Matic

Chalmers, Applied Physics, Condensed Matter Physics

Per Jacobsson

Chalmers, Applied Physics, Condensed Matter Physics

Lars Börjesson

Chalmers, Applied Physics, Condensed Matter Physics

M.A. Navarra

The Electrochemical Society

Sapienza University of Rome

S Panero

Sapienza University of Rome

The Electrochemical Society

B Scrosati

The Electrochemical Society

Sapienza University of Rome

Journal of the Electrochemical Society

0013-4651 (ISSN)

Vol. 154 8 G183-G187

Subject Categories

Other Engineering and Technologies

Condensed Matter Physics

DOI

10.1149/1.2745640

More information

Latest update

3/5/2018 8