Chemistry
Understanding Ionic Conductivity in Solid Electrolytes
Quick fact
In some solid electrolytes, lithium ions can move through the crystal lattice at speeds comparable to liquids, defying the notion that solids are rigid and immobile.
Why this is interesting
Your phone's battery relies on liquid to move ions. But imagine a solid material that does the same job—without leaking, catching fire, or degrading. How can ions 'swim' through something that feels like a rock?