Harvesting kinetic or mechanical energy from the movements and vibrations of your smartphone is already being done. But scientists have managed to make it more profitable. Much more so.
140 times more energy: this is the amount that a nanogenerator developed by a British team from the University of Surrey is capable of producing. It is an electricity generator that recovers energy from movements, heat or vibrations emitted or undergone by an electrical device to increase the autonomy of your devices.
« The dream of nanogenerators is to capture and use energy from everyday movements, like your morning run, mechanical vibrations, ocean waves, or the opening of a door. The key innovation of our nanogenerator is that we have refined the technology with 34 tiny energy harvesters using a laser technique that can be scaled up for manufacturing to further increase energy efficiency. ” we read on the university website.
As we know, perpetual motion does not exist, and if we equip a device with one of these nanogenerators, it will not be able to fully recharge itself from the energy it produces itself. But that is without counting on another source of energy external to the device: ourselves. By walking, pressing the keyboard on our phone, moving it in space, we also create an additional source of energy. We could therefore go very far with these new generators: to the point of devices that practically never run out of energy.
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