Energy storage might have been revolutionized thanks to a common dessert dish.
Scientists at the Chemnitz University of Technology developed the world's smallest battery, a Swiss-roll-inspired self-assembling device that could be used to power small sensors in the human body, according to a new paper published in the journal Advanced Energy Materials.
The breakthrough in energy storage technology was created via the so-called Swiss-Roll process, inspired by the famous layered, spongey dessert. In this case, the researchers layered current collectors and electrode strips made of polymeric, metallic, and dielectric materials onto a tensioned water surface.
By peeling off these individual layers they could release the tension on the water surface, allowing the materials to snap back and roll around each other. The scientists described the resulting device as a "self-wound cylinder micro-battery".
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