Carbon-polymer-ionic liquid composite as a motion sensor

Indrek Must; Friedrich Kaasik; Inga Põldsalu; Urmas Johanson; Andres Punning; Alvo Aabloo

doi:10.1117/12.915268

3 April 2012 Carbon-polymer-ionic liquid composite as a motion sensor

Indrek Must, Friedrich Kaasik, Inga Põldsalu, Urmas Johanson, Andres Punning, Alvo Aabloo

Proceedings Volume 8340, Electroactive Polymer Actuators and Devices (EAPAD) 2012; 834019 (2012) https://doi.org/10.1117/12.915268
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2012, San Diego, California, United States

Abstract

High surface area carbon, ionic liquid and polymer are incorporated in an electromechanically active composite. This laminate bends when voltage (typically less than 3 V) is applied between the electrodes, and generates voltage and current when bent with an external force. By suitable optimization, the material can be used either as an actuator, energy storage element (supercapacitor) or sensor. Strain caused by bending promotes dislocation of ions in the micropores of carbon. As a result, the charge separation occurs because ions of ionic liquid are likely trapped in the micropores of diameters close to the ion sizes.

Citation Download Citation

Indrek Must, Friedrich Kaasik, Inga Põldsalu, Urmas Johanson, Andres Punning, and Alvo Aabloo "Carbon-polymer-ionic liquid composite as a motion sensor", Proc. SPIE 8340, Electroactive Polymer Actuators and Devices (EAPAD) 2012, 834019 (3 April 2012); https://doi.org/10.1117/12.915268

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