As AI's energy demands surge, Google is backing an unexpected breakthrough that uses rust to reimagine how massive batteries ...

An iron-air battery that stores and releases energy through a reversible rusting process has become the first of its kind to connect with a public electricity grid. On 30 July, the startup Ore Energy ...

Discharging the batteries requires oxygen to be put back into the system, and turns the metallic iron to rust, releasing energy in the process. Obviously, this reaction is slower than the instant, ...