Saltwater and rust redox flow batteries

By repurposing rust and leveraging seawater's natural chemistry, researchers have developed an inexpensive, scalable green battery solution.

The U.S. currently generates over 15 million tons of unrecycled scrap iron waste each year, much of which turns to rust, but researchers at Worcester Polytechnic Institute (WPI) have developed a rechargeable alkaline iron battery chemistry that repurposes thi...