Scale-like compliant gold electrode: Towards high strain capacitive devices for energy harvesting

Abstract : Highly compliant electrodes are of primary importance for high strain capacitive energy harvesting. Herein, we present a compliant gold sputtered electrode on a natural rubber substrate. Electrical conductivity remained remarkably good even at strains of 500%. The robustness of the electrodes has been assessed in fatigue tests and resistivity of less than 25 Ω cm -1 were observed after 1500 cycles between 200% and 300% strain. These electrodes were then used in harvesting energy for large strains and experimental energy densities up to 3.3 mJ cm-3 cycle-1 have been recorded, showing the capabilities of such electrodes for efficiently ensuring electrical contact under high strain for converting mechanical energy into electricity. © 2014 Elsevier B.V.
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J. Galineau, J.-F. Capsal, P.-J. Cottinet, M. Lallart. Scale-like compliant gold electrode: Towards high strain capacitive devices for energy harvesting. Sensors and Actuators A: Physical , Elsevier, 2014, 211, pp.1-7. ⟨10.1016/j.sna.2014.02.034⟩. ⟨hal-01770282⟩

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