A surprising breakthrough could help sodium-ion batteries rival lithium—and even turn seawater into drinking water. Scientists discovered that keeping water inside a key battery material, instead of removing it as traditionally done, dramatically boosts performance. The “wet” version stores nearly twice as much charge, charges faster, and remains stable for hundreds of cycles, placing it among the top-performing sodium battery materials ever reported.
Right up there with the batteries that would contain about 1 kg of silver in them. Even if they didn’t become insanely expensive you’d have tweakers foaming at the mouth to steal your batteries.