Methods of producing anode active materials and graphene from graphite

Abstract

Embodiments described herein relate to systems and methods for converting graphite compositions into spherical graphite particles and graphene. In some aspects, a method can include providing a graphite composition, and subjecting the graphite composition to a spheronization process to produce a plurality of spherical graphite particles and a plurality of graphite particles rejected from the spheronization process. The method further includes separating and collecting the spherical graphite particles and the rejected graphite particles in different collection zones. The rejected graphite particles are then exfoliated to obtain graphene particles. The spherical graphite particles are then further processed to form anode-active materials. The method can further include reducing an average particle size of the graphite composition via a micronization process prior to spheronization.

Dependencies are inferred from the claim text.