In R-C world, there's really high-discharge graphene-substrate batteries for sale now. Power-density not much different than regular polymer though, and really expensive $/Ah.Interesting. But I am unaware of graphite being used in mass production batteries today. I have seen some stuff about graphite batteries in the lab, some showing even early proof of concept production cell batteries. But this is still years away from GA.
Or did I miss something (always very possible).