Technology
Solid-State Lithium Metal Batteries with Sulfide Electrolytes
Quick fact
Sulfide electrolytes can have ionic conductivities comparable to or even exceeding that of liquid electrolytes, over 10 mS/cm, which was once thought impossible for solids.
Why this is interesting
You know how your phone battery can catch fire or slowly lose capacity? What if the liquid inside were replaced with a solid material that could store more energy and never combust?