New self-refueling underwater batteries use marine microbes to generate electricity

undefined 12, 2026

Source: interestingengineering

Researchers at Michigan Technological University, backed by DARPA, are developing self-refueling underwater batteries powered by marine microbes. These microbial fuel cells convert organic matter in seawater into electricity, enabling long-lasting ocean sensors without retrieval. Early tests show promising results, and the technology could support naval, environmental, and acoustic monitoring by allowing devices to operate underwater for extended periods.

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