Science & technology | Energy storage

New battery designs could lead to gains in power and capacity

Researchers are looking beyond the cathode

An illustration of a battery with slices being swapped out.
Illustration: Rose Wong

IN THEir QUEST to build a better battery, researchers have blazed a trail through the elements of the periodic table. The earliest prototype cells ran on nickel and cadmium; successors have used everything from zinc and iron to sodium and lead.

This article appeared in the Science & technology section of the print edition under the headline “All change”

From the September 21st 2024 edition

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left: John Hopfield  right: Dr. Geoffrey Hinton.

AI researchers receive the Nobel prize for physics

The award, to Geoffrey Hinton and John Hopfield, stretches the definition of the field

Victor Ambros Molecular & Gary Ruvkun.

A Nobel prize for the discovery of micro-RNA

These tiny molecules regulate genes and control how cells develop and behave


Illustration of a yellow smiley face with a frown instead of a smile, across the frown, there’s a colorful wave that looks like an audio waveform

AI offers an intriguing new way to diagnose mental-health conditions

Models look for sound patterns undetectable by the human ear


Why it’s so hard to tell which climate policies actually work

Better tools are needed to analyse their effects

Isolated communities are more at risk of rare genetic diseases

The isolation can be geographic or cultural

An adult fruit fly brain has been mapped—human brains could follow

For now, it is the most sophisticated connectome ever made