Wednesday, August 21, 2019

Study identifies main culprit behind lithium metal battery failure

A research has discovered the root cause of why lithium metal batteries fail - bits of lithium metal deposits break off from the surface of the anode during discharging and are trapped as 'dead' or inactive lithium that the battery can no longer access.

Physicists create world's smallest engine

The research explains how random fluctuations affect the operation of microscopic machines like this tiny motor. In the future, such devices could be incorporated into other technologies to recycle waste heat and thus improve energy efficiency.

Engineers make transistors and electronic devices entirely from thread

Transistors and integrated circuits made from threads are combined with thread-based sensors to create fully flexible devices.

Scientists develop a metamaterial for applications in magnonics, an alternative to conventional electronics

Physicists have demonstrated the real possibility of using superconductor/ferromagnet systems to create magnonic crystals, which will be at the core of spin-wave devices to come in the post-silicon era of electronics.

Colour-changing artificial 'chameleon skin' powered by light-triggered nanoparticles

Researchers have developed artificial 'chameleon skin' that changes colour when exposed to light and could be used in applications such as active camouflage and large-scale dynamic displays.