So, it’s a capacitor.
It may be some sort of nanotech super capacitor...
What matters is: Does it deliver as stated?
We should know in four months. If we start hearing... delayed production for the motorcycles.. Red flags waving all over the place.
That’s what it looks like. Some folks have done a little digging (see video below) and tied the planned manufacturing plant and some of the specifications to another Finnish company that has been pitching capacitor technology, Nordic Nano.
https://www.youtube.com/watch?v=Qsi-TS8PX7U
The problem with capacitors is that they have never come close to the energy density of lithium, let alone the claimed 400W/Kg Donut Labs is claiming.