Toothbrush is electricity-free but oh, those brushstrokes

(Tech Xplore)—Nobody can deny the very idea of a battery-free toothbrush doing a very efficient job of brushing morning and night does sound like a good idea. Cables, adapters, charging, batteries, begone.

Energy & Green Tech

Engineers develop new material for better lithium-ion batteries

The batteries we use every day may soon become cheaper, smaller and lighter. Researchers in the Cockrell School of Engineering at The University of Texas at Austin have discovered a family of anode materials that can double ...