Today's batteries are the least green part of green energy. This <a href="https://www.popsci.com/category/best-whats-new/"><strong>non-toxic, scalable, safe, saltwater</strong></a> system could mean a brighter future for energy storage.
Today's batteries are the least green part of green energy. This non-toxic, scalable, safe, saltwater system could mean a brighter future for energy storage. Courtesy Aquion Energy
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Stationary batteries can store surplus wind and solar energy, turning a highly variable power source into a steady flow of electrons. But most are made from highly toxic or flammable materials. The Aqueous Hybrid Ion (AHI) battery relies on a salt-water–based electrolyte to carry the charge. It’s nontoxic, low-cost, and modular, and it can’t overheat.

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