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

Des chercheurs produisent de l’électricité à partir de l’air humide avec des filtres de cigarettes et des piles usagées

SCIENCE X

Une étude publiée dans Scientific Reports décrit un générateur mince et flexible qui produit de l’électricité à partir de l’humidité de l’air, fabriqué entièrement à partir de déchets : tiges de canne sauvage, filtres de cigarettes jetés, pâte de carbone issue de piles usagées, sel de table et papier aluminium.

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