Ann: Outstanding Result for Enhanced HPA Anode Coatings, page-20

Hi Kergman, i believe that as purification processes improve to deliver a consistent product with higher specs then natural spherical graphite will be the prefered material to synthetuc graphite made from petroleum coke and coal tar.

There is really no reason to keep using synthetic for most EV requirements.

"Manufacturers preferred synthetic graphite because of its superior consistency and purity to natural graphite. This is changing and with modern chemical purification processes and thermal treatment, natural graphite achieves a purity of 99.9 percent compared to 99.0 percent for the synthetic equivalent.Purified natural flake graphite has a higher crystalline structure and offers better electrical and thermal conductivity than synthetic material. Switching to natural graphite will lower production cost with same or better Li-ion performance. Synthetic graphite for Li-ion sells for around US $10,000 per ton whereas spherical graphite made from natural flake sells for US $7,000 (2015 prices)."