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Fedupwithconstantlyhavingtorechargeorreplacebatteriesinyourever-expandingelectronicdevices?Thesolutionmaybejustafewstepsaway.“Energyharvesting”promisestopowercountlessconsumerdevicesoftenwithnothin
更新时间: 2025-08-31 03:29:47
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Fedupwithconstantlyhavingtorechargeorreplacebatteriesinyourever-expandingelectronicdevices?Thesolutionmaybejustafewstepsaway.

“Energyharvesting”promisestopowercountlessconsumerdevicesoftenwithnothingmorethanyourbody’smovementorheat.DozensofcompaniesaroundtheworldalreadyoffersuchproductsbutmanyexpertsbelievethemarketforthetechnologycouldexplodeduetoelectronicdevicesbeingdevelopedfortheInternetofThings.

“It’shuge,”saidGrahamMartinCEOoftheEnOceanAllianceaSanRamon-basedgroupofbusinessesthatpromoteswirelessenergy-harvestingtechnologies.WiththeInternetofThingsexpectedtocombinebillionsofdevices“iftheyareallbattery-poweredwe’llhaveaproblembecausethere’snotenoughlithium(锂)intheworld,”headded.“Soalotofthemwillhavetouseenergyharvesting.”

Amongthemostbasicformsofthetechnologyisbodypower.Whencertainmaterialsaresqueezedorstretchedthemovementoftheiratomscreatesanelectricalcharge.Automaticwatcheshaveemployedtheconceptfordecadesforexamplebywindingthemselveswhentheirusermovestheirarm.Nowtheconceptisbeingconsideredforanumberofotherdevices.

InacontestseekingvisionaryideasforwearabletechnologiesIntelawarded$5000foraconcepttochangethetemperaturedifferencebetweenaperson’sbodyandaspecialpieceofclothingthey’dwearintoelectricityformobiledevices.

Usingsoundtopowerdevicesisanotherenergy-harvestingvariation.StanfordUniversityengineersaretestingsmartmicrochipsthatcreateelectricityfromultrasoundtopowerimplantabledevicesthatcananalyzeaperson’snervoussystemortreattheirdiseases.

AtextileresearchassociationinSpainisproposingtoobtainelectricityfromradiowavesthatflowaroundeveryonetopowersensorssewnintoclotheswhichcanmonitoraperson'sheartbeatorothervitalsigns. ResearchfirmlDTechExhasestimatedthatannualglobalsalesofenergy-harvestingproductscouldhit$2.6billionby2024whileWinterGreenResearchpredictssalesof$4.2billionby2019.

Obtainingstableenergyfromdevicescanbecomplexhowever.Foronethingthemotionthatgeneratestheelectricityhastobeconstantto

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