I know that Zenn motor company in Canada made a 10% of their stock investment, which looks like it k!lled their company, and now there is no new news on Eestor.
If they had ultra capacitors with the energy density of a battery and the life and speed of a capacitor this would be great. This would rid the need to buy batteries again, like your cell phone, the battery could be built into the device. The would also make the electric car very viable, the car battery then would out life the car by far.
I been tryin to find that out and like u said nothing is being heard