Cathodes are one of two electrodes in a battery. They're often made from expensive and hard-to-gather metals like nickel and ...

“I think what just happened was you accidentally made a lasagna battery,” Charles (Ted Danson) says in a Season 2 episode.

This is today's edition of The Download, our weekday newsletter that provides a daily dose of what's going on in the world of technology. Future space food could be made from astronaut breath The ...

Coffee gives countless people a jolt of energy every day—and soon it could do the same for our tech. Scientists have recently found a way to use spent coffee grounds for electrodes in lithium-sulfur ...