000196845 001__ 196845
000196845 005__ 20180913062358.0
000196845 0247_ $$2doi$$a10.1088/1742-6596/476/1/012117
000196845 022__ $$a1742-6588
000196845 02470 $$2ISI$$a000329347500116
000196845 037__ $$aCONF
000196845 245__ $$aAn electroactive polymer energy harvester for wireless sensor networks
000196845 260__ $$bIop Publishing Ltd$$c2013$$aBristol
000196845 269__ $$a2013
000196845 300__ $$a5
000196845 336__ $$aConference Papers
000196845 490__ $$aJournal of Physics Conference Series
000196845 520__ $$aThis paper reports the design, fabrication, and testing of a soft electroactive polymer power generator that has a volume of 1cm(3). The generator provides an opportunity to harvest energy from environmental sources to power wireless sensor networks because it can harvest from low frequency motions, is compact, and lightweight. Electroactive polymers are highly stretchable variable capacitors. Electrical energy is produced when the deformation of a stretched, charged electroactive polymer is relaxed; like-charges are compressed together and opposite-charges are pushed apart, resulting in an increased voltage. Although electroactive polymers have impressively displayed energy densities as high as 550 mJ/g, they have been based on films with thicknesses of tens to hundreds of micrometers, thus a generator covering a large area would be required to provide useful power. Energy harvesters covering large areas are inconvenient to deploy in a wireless sensor network with a large number of nodes, so a generator that is compact in all three dimensions is required. In this work we fabricated a generator that can fit within a 11x11x9 mm envelope by stacking 42, 11mm diameter generator films on top of each other. When compressed cyclically at a rate of 0.5 Hz our generator produced 300 uW of power which is a sufficient amount of power for a low power wireless sensor node. The combination of our generator's small form factor and ability to harvest useful energy from low frequency motions provides an opportunity to deploy large numbers of wireless sensor nodes without the need for periodic, costly battery replacement.
000196845 700__ $$aMckay, T. G.
000196845 700__ $$0241188$$g127048$$aRosset, S.
000196845 700__ $$aAnderson, I. A.
000196845 700__ $$aShea, H.$$g162368$$0240376
000196845 7112_ $$ddecember 2013$$cLondon, UK$$a13th International Conference on Micro- and Nano-Technology for Power Generation and Energy Conversion Applications (PowerMEMS)', u'13th International Conference on Micro- and Nano-Technology for Power Generation and Energy Conversion Applications (PowerMEMS)
000196845 773__ $$j476$$t13th International Conference On Micro And Nanotechnology For Power Generation And Energy Conversion Applications (Powermems 2013)
000196845 909C0 $$xU10955$$0252107$$pLMTS
000196845 909CO $$pconf$$pSTI$$ooai:infoscience.tind.io:196845
000196845 917Z8 $$x162368
000196845 937__ $$aEPFL-CONF-196845
000196845 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000196845 980__ $$aCONF