Electronics & Semiconductors

Lithium metal batteries that perform well at low temperatures

Lithium (Li) batteries, or lithium metal batteries, use metallic lithium as an anode. Over the past few decades, rechargeable Li batteries have been used to power a wide variety of electronic devices, including toys, portable ...

Energy & Green Tech

Record efficiency for printed solar cells

A new study reports the highest efficiency ever recorded for full roll-to-roll printed perovskite solar cells (PSCs), marking a key step on the way to cheaper and more efficient ways of generating solar energy.

Energy & Green Tech

A lithium battery that operates at -70 degrees Celsius, a record low

Researchers in China have developed a battery with organic compound electrodes that can function at -70 degrees Celsius—far colder than the temperature at which lithium-ion batteries lose most of their ability to conduct ...