I tested the thinnest Qi2 power bank on the market - and it's thanks to semi solid-state batteries

The BMX SolidSafe Air is a safe semi-solid-state battery clad in a polymer and titanium shell and just over 0.25 inches thick.
Interesting Engineering on MSN

7 solid-state battery ideas that may boost EV range, safety, and charging speed

Electric vehicles have advanced rapidly over the past decade, but battery technology remains the ...