Interesting, but:

Elias notes that Apple and other companies are investing massive amounts of money to create conformable batteries, such as the L-shaped batteries in some iPhones, but are using costly and limited traditional methods.

See, the thing with molds and specialised tools is that they get really, really cheap at scale. It you're making something like a drone, using a mass-produced drone-shaped battery and fastening chips and motors on seems like it would be better than painstakingly printing a battery into whatever cheap plastic body.

The tech eliminates the metal casings, bus bars and other components that hog space in conventional cells.

Those things also all have purposes. I have to wonder if there's some kind of tradeoff not being advertised here.