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High-output acoustoelectric power generators from poly(vinylidenefluoride-co-trifluoroethylene) electrospun nano-nonwovens
journal contribution
posted on 2017-05-01, 00:00 authored by Chen hong Lang, Jian Fang, Hao Shao, Hong Wang, Guilong Yan, X Ding, Tong LinConversion of mechanical forces, vibrations and sound which have energy in the range of milli- to tens of watts (also referred to as “small kinetic energies” in this paper) into electricity has received global attention owing to the potential in powering electronic devices. However, most of the small kinetic energy generators can only generate electric power below 1 µW/cm3. As a result, an energy storage device is required to accumulate the energy generated until it reaches a sufficient level. Herein, we report the exceptionally-high acoustoelectric conversion ability of randomly-orientated electrospun poly(vinylidenefluoride-co-trifluoroethylene) nanofiber nonwoven webs. The optimized device under sound is able to generate peak voltage and current of 14.5 V and 28.5 μA with a volume power density output of 306.5 μW/cm3 (5.9 mW/cm3 based on nanofiber web thickness). Without accumulation in any energy storage unit, the electricity generated by the nanofiber device is sufficient to light up tens of commercial LEDs, run electrochemical reactions and protect metals from corrosion. Such a novel acoustoelectric generator may offer an effective solution to recycling noise pollution into usable electricity.
History
Journal
Nano EnergyVolume
35Pagination
146 - 153Publisher DOI
ISSN
2211-2855Publication classification
C1 Refereed article in a scholarly journalCopyright notice
2017 ElsevierUsage metrics
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No categories selectedKeywords
Science & TechnologyPhysical SciencesTechnologyChemistry, PhysicalNanoscience & NanotechnologyMaterials Science, MultidisciplinaryPhysics, AppliedChemistryScience & Technology - Other TopicsMaterials SciencePhysicsAcoustoelectric conversionNanofiberNonwovenP(VDF-TrFE)Power generatorNoiseENERGYDRIVEN
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