A flexible, paper-thin generator, built entirely from waste materials — wild sugarcane stalks, discarded cigarette filters, carbon paste from spent dry-cell batteries, table salt, and aluminum foil. One single unit generates up to 1.16 volts at 65% humidity; four units in series powered a small LED for over three hours without a capacitor.
(c) Jose Gabriel Ortega Castro

Forscher erzeugen Strom aus feuchter Luft — mit Zigarettenfiltern und alten Batterien

SCIENCE X

Eine in Scientific Reports veröffentlichte Studie beschreibt einen dünnen, flexiblen Generator, der Strom aus Luftfeuchtigkeit erzeugt und ausschliesslich aus Abfallmaterialien besteht: wilde Zuckerrohrstängel, weggeworfene Zigarettenfilter, Kohlenstoffpaste aus verbrauchten Trockenbatterien, Kochsalz und Aluminiumfolie. Eine einzelne Einheit erzeugt bei 65 % Luftfeuchtigkeit bis zu 1,16 Volt; vier in Serie betrieben eine kleine LED über drei Stunden lang.

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