Related Experiment Video
Updated: Jun 25, 2026

05:33
Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
Nanogravimetric observation of unexpected ion exchange characteristics for polypyrrole film p-doping in a deep
Magdalena A Skopek1, Mohamoud A Mohamoud, Karl S Ryder
1Department of Chemistry, University of Leicester, University Road, Leicester, UK LE1 7RH.
Abstract:
The electrochemical quartz crystal microbalance was used to determine redox-driven ion transfers accompanying p-doping of polypyrrole (PPy) films in the choline chloride-based deep eutectic ionic liquid ethaline; electroneutrality maintenance is gravimetrically dominated by choline cation transfer and this requires the presence within the undoped film of ionic liquid, when this finite reservoir of choline is exhausted there is a shift to chloride transfer.

