The long promised leap from conventional lithium ion cells to solid state batteries has finally arrived in a production ...

Donut Lab has just unveiled a world-first solid state EV battery with a 400 wh/kg energy density, which is more than double that of some Tesla vehicles.

[mircemk] has been working on wireless power transmission. Using a Class-E Tesla coil with 12 turns on the primary and 8 turns on the secondary and a 12 volt input he can send a few milliwatts to ...