Comment by Animats

The Nordic Nano connection is strange. Here's their web site.[1] They claim to make solar panel coatings, solid state batteries, and do something involving hydrogen. This is all done from a little metal building in a small town on the east coast of Finland near the Russian border. There's no detail on any of this technology.

One Youtuber thinks this is a capacitor, not a battery. But that would require a dielectric orders of magnitude better than anything known.

Donut won't talk about either the chemistry or the manufacturing. The only thing they showed at CES was one pouch cell hooked up to a charger at 4.2V, drawing current. Everything else was a 3D printed mockup or an existing electric motorcycle.

[1] https://www.nordicnano.co/