Revolution in renewable energy storage – salt-and-air battery

German researchers have unveiled a salt-and-air battery that could change renewable energy storage forever. Instead of relying on scarce and toxic materials like lithium or cobalt, this system uses abundant elements such as sodium (from salt) and oxygen (from air) to store electricity. These materials are not only inexpensive but also environmentally safe, paving the way for scalable, low-cost energy storage for homes and industries. Unlike...