<span style="color: #222222;">Researchers have developed a new dielectric capacitor- a device that stores energy like a battery, taking inspiration from a French pastry. The croissant is made by folding multiple layers of dough.<br />” &nbsp;<br />” The researchers, including those from Queen Mary institute of London in the United Kingdom, found that by pressing and folding a polymer film capacitor, they were able to store 30 times more energy than the best-performing commercially available dielectric capacitor.<br />” <br />” The study was published in the journal Nature Communications. This is the highest energy density ever reported in a polymer film capacitor. The advance may pave the way for efficient, low-cost, and environmentally-friendly electric energy storage systems for wind and solar sources.<br />” <br />” Storing energy can be tricky and expensive, especially with renewable energy sources. With this technique, large amounts of renewable energy can be stored.<br />” <br />” The study noted that dielectric capacitors generally have ultrahigh power density making them suitable for technologies such as motor drives, and space vehicle power systems. These require accumulating energy over a period of time and then releasing it very quickly.<br />” <br />”<br />”Until now, such capacitors were limited by the low amounts of energy they could store. This finding promises a significant impact on the field of pulse power applications and could produce a step-change in the field of dielectric capacitors, so far limited by their low energy storage density.</span><br />