How was this achieved? It seemed like battery energy density improvements were very marginal. I'd expect that this type of jump could only be achieved with a new significant insight, but the article seems to say it's just traditional process done better and newer. That's very vague:

> the condensed battery integrates a range of innovative technologies, including the ultra-high energy density cathode materials, innovative anode materials, separators, and manufacturing processes

Are these all things that are common knowledge now, and they're just the first ones to slap them all together, and that it's a short matter of time before all battery manufacturers start providing much better density? Or is there something more to it?