I saw all that
But I still don't see how a company could hope to make any money doing this
If they have a huge demand - then people will open them up and see that they have been lied to
No. When you open them up, you see what looks like unlabelled capacitors. You can't tell they are LTOs by looking at them. Nor can you easily tell they are LTOs by their voltage vs SoC curves, provided you stay within the 44 V to 54 V limits specified by the manufacturer, because LTOs happen to be fairly linear in that region, particularly at the 2C rate.
The main reasons I am fairly confident they are LTOs are:
1. I have read extensively about the current state of the art in supercapacitors, and we're nowhere-near this energy density, even in the lab, let alone mass production. And the chance that some lone genius could leapfrog everyone else by about 10 years is negligible.
2. LTO cells are commercially available that look exactly
like the "capacitors" in the Kilowatt Labs unit and they have exactly*
the required voltage, internal resistance, energy capacity, weight, dimensions, linear region of voltage vs charge curve, and (as we've seen most recently) flammable electrolyte. * Within 5%. [Edit: And low enough cost]
Now we're waiting for Arvio to release a 1C voltage versus charge curve that goes outside
of the linear region for LTOs.
At this stage, I'm assuming good faith on their part.