MTL News

New kind of supercapacitor made without carbon

October 11, 2016

Energy storage device could deliver more power than current versions of this technology.

MIT-Supercapacitor_0.jpg

To demonstrate the supercapacitor's ability to store power, the researchers modified an off-the-shelf hand-crank flashlight (the red parts at each side) by cutting it in half and installing a small supercapacitor in the center, in a conventional button battery case, seen at top. When the crank is turned to provide power to the flashlight, the light continues to glow long after the cranking stops, thanks to the stored energy.

Photo: Melanie Gonick

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