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Eos Energy Storage says its zinc-air battery can store energy to meet peak power needs for less.
A Pittsburgh company says its battery has the long life and cheap cost needed to be practical for energy storage.
A startup says its compressed-air technology could do a better job of storing the power generated by wind turbines.
The key is a modular design, which could make the technology practical as a way to keep the grid stable and reduce electricity costs.
A startup hopes to commercialize a novel design that features fluid electrodes.
Battery draws power from salinity difference between freshwater and saltwater.
Startup creates an automated process that could speed the development of cheaper batteries for electric cars.
An alternative to batteries gets an advance from tiny, crumpled sheets of graphene, whose electrodes can store more charge because they have larger surface areas.