Traditionally, capacitors are like really bad rechargeable batteries. Supercapacitors changed that, making it practical to use a fast-charging capacitor in place of rechargeable batteries. However, ...

For semiconductor designers this outlines how a thin ferroelectric stack can retain polarization and support memory ...

Last time, we covered storing and charging a 3000 Farad supercapacitor to build a solar-powered, portable spot welder. Since then, I’ve made some improvements to the charging circuit and gotten it ...

As engineering innovations continue to advance ultracapacitors, their enhanced performance capabilities are expected to hasten the convergence of batteries and ultracapacitors—strengthening the ...

Your phone died. Again. In these scenarios, who among us has not dreamed the dream of a future where our devices charge instantly and last forever. As capacitors—or even more exciting, ultracapacitors ...

A Leyden jar being discharged, from an 1878 science text. This image originally appeared in Augustin Privat-Deschanel’s 1878 “Elementary Treatise on Natural Philosophy, Part 3: Electricity and ...