Based on 'A' samples being sent to OEMs, I would say this technology just moved inside the '5 years out' window. For those that don't know what I mean, Fuel Cells were '5 years out' when I joined the Air Force in 1983. When I retired from the Air Force in 2005, Fuel Cells were '5 years out'...
There is a huge list of advantages from a Solid State Battery (SSB) pack over the older Lithium packs. I reserved a Lighting but a lot of information I have been studying and my findings suggesting the SSBs may not be as far off as many have thought.
Next year should yield some good updates...