[PoignardAzur]

> Does anyone with more battery knowledge know if this could be some kind of supercapacitor hybrid being marketed as a solid-state battery?

A few Youtubers have pushed the "if it's not a scam, it's probably a novel capacitor" hypothesis, but in their video announcing this test series last weekend, Donut Labs claimed "it's not a capacitor", so I don't know what's going on.