Researchers from Northwestern University have invented a fuel cell that is powered by microbes found in soil. Northwestern alumnus Bill Yen, who led the work, said of their proof-of-concept, “We need to find alternatives that can provide low amounts of energy to power a decentralized network of devices… we looked to soil microbial fuel cells, which use special microbes to break down soil and use that low amount of energy to power sensors. As long as there is organic carbon in the soil for the microbes to break down, the fuel cell can potentially last forever.”
Scientists develop dirt-powered fuel cell that could replace batteries– www.sciencedaily.com
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EXCERPT:
Researchers led by Northwestern University have developed a fuel cell that generates electricity using microbes naturally found in soil. The device, roughly the size of a paperback book, produces small amounts of power by capturing energy released as these microorganisms break down organic material in dirt.
This soil-powered system is designed to run underground sensors used in precision agriculture and environmental monitoring. It offers a potential alternative to traditional batteries, which contain toxic and flammable materials, rely on complex global supply chains, and contribute to growing electronic waste.
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