Spherical graphite is being made using traditional methods and is not exclusive to DPMG. Also I am pretty sure the method used to cook it at 3000 degrees is called thermal purification and is the most expensive method that is why its rarely used.
https://www.linkedin.com/pulse/main-methods-graphite-purification-mary-zhang
So it will be very interesting to see how NVX patent has actually made the most expensive method the cheapest.
Last chance to sell above a $1 in 2020, page-251
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