Following the Nobel Prize for graphene's discovery in 2010, the gee-whiz nanomaterial has been lauded as a "wonder material" with endless theoretical applications, including graphene super batteries, leading to a "sugar rush" of investor excitement and high valuations of graphene makers such as Applied Graphene Materials Plc. (OTCQB:APGMF) and First Graphene Limited (OTCMKTS:FGPHF). Unfortunately, the actual pace of commercial adoption has been much slower than initially anticipated, causing huge market ...