Lithium batteries very frequently power our gadgets, but the material itself isn't common and, by extension, isn't cheap. Researchers at the electrode Having just 30 total charges means this simplest form of sodium-ion battery technology could be years away from finding a home in your next smartphone or EV, although it's not the only option. 's Chris Johnson has co-developed a more exotic electrode that could produce 200 charges while keeping the battery itself made out of an ingredient you more often find in your table salt than your mobile gear.
Engadget, New metal mix could lead to cheap, plentiful sodium-ion batteries in gadgets
