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Updated: Dec 28, 2025

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
Ionoelastomer junctions between polymer networks of fixed anions and cations
Hyeong Jun Kim1, Baohong Chen2, Zhigang Suo3
1Department of Polymer Science and Engineering, University of Massachusetts, Amherst, MA 01003, USA.
Abstract:
Soft ionic conductors have enabled stretchable and transparent devices, but liquids in such devices tend to leak and evaporate. In this study, we demonstrate diodes and transistors using liquid-free ionoelastomers, in which either anions or cations are fixed to an elastomer network and the other ionic species are mobile. The junction of the two ionoelastomers of opposite polarity yields an ionic double layer, which is capable of rectifying and switching ionic currents without electrochemical reactions. The entropically driven depletion of mobile ions creates a junction of tough adhesion, and the stretchability of the junction enables electromechanical transduction.
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