Researchers take a step toward carbon-capturing batteries

What if there were a battery that could release energy while trapping carbon dioxide? This isn’t science fiction; it’s the promise of lithium-carbon dioxide (Li-CO₂) batteries, which are currently a hot research topic.

Li-CO₂ batteries could be a two-in-one solution to the current problems of storing renewable energy and taking carbon emissions out of the air. They absorb carbon dioxide and convert it into a white powder called lithium carbonate while discharging energy.

These...