Anyone know?https://investorintel.com/graphite-graphene-intel/synthetic-graphite-is-purer-but-the-future-belongs-to-natural-graphite/
Excerpt...
However, graphite’s demand and value have mostly been driven by the fact that it is an important component of a crucial energy storage device: the lithium-ion battery. Laptops, smart phones and electric cars such as the Tesla-S all derive their power from batteries which feature an anode made entirely with graphite. Most of this graphite is synthetic and natural flake, mined, graphite accounts for only 5% of global demand for batteries; nevertheless, when the natural graphite producers start to come into production they will help boost demand, to the point where natural graphite demand will match or exceed demand for synthetic graphite before the end of this decade.
From above excerpt...If the someone has access to the tonnage of the various anodes used In batteries, then 5% would give a reasonable figure of the present tonnage natural graphite required. In effect 95% would give on an idea of the tonnage required to substitute natural graphite other anodes.