the battery that eats carbon-dioxide - yes, really

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https://unsplash.com/photos/blue-and-black-can-on-black-surface-vorH-CF_SZI

Here's the good news in battery form: scientists at the University of Surrey are cooking up lithium-carbon dioxide batteries that don't just store energy — they gobble up CO₂ while doing it, turning it into a harmless white powder. They could theoretically pack way more punch per charge than today's lithium-ion batteries thanks to a bigger electron exchange during the reaction, and the team has found a promising new way to tackle the tricky recharging problem that's held the tech back.

The dream applications are wonderfully wide-ranging: imagine cutting emissions from cars and factories, or even one day powering long missions on Mars, where the atmosphere is almost entirely CO₂. Researchers are now testing how it holds up under real-world conditions like car exhaust pressure — and if it works, a single kilogram of catalyst could soak up enough CO₂ to offset a car's daily emissions. 

Early days, but genuinely exciting stuff!

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