Abstract: A system is disclosed. The system includes an impact processor comprising an inlet and an outlet, a secondary classifier comprising an inlet and an outlet, the secondary classifier being downstream of and coupled to the impact processor, a recirculation mixer valve downstream of and coupled to the outlet of the secondary classifier, and a recirculation line coupling the outlet of the first secondary classifier to the inlet of the impact processor.

Abstract: Materials and novel methods for producing carbon anodes for Li-ion batteries are described. These materials use natural flake graphite that has been processed to improve physical properties but retains residual impurities including silicates and other silicon containing minerals that are difficult to eliminate economically. For the purposes of battery anode material production, further purification is required and traditionally uses hydrofluoric acid, adding significant cost and environmental management requirements. Alternate novel processes result in less costly and more environmentally friendly methods when compared against the standard acid purification with hydrofluoric acid. Methods for direct graphitization of unpurified spheroidized graphite material that includes a carbonaceous coating in production of a lithium ion battery anode are provided. Materials generated using these methods may be blended with artificial graphite and particulate Silicon or SiOx materials for enhanced properties.

Abstract: A system is disclosed. The system includes an impact processor comprising an inlet and an outlet, a secondary classifier comprising an inlet and an outlet, the secondary classifier being downstream of and coupled to the impact processor, a recirculation mixer valve downstream of and coupled to the outlet of the secondary classifier, and a recirculation line coupling the outlet of the first secondary classifier to the inlet of the impact processor.

Abstract: Embodiments of the invention are directed to systems and methods for purifying graphite particles. Graphite flakes can be milled, and then separated into groups with different nominal sizes. The different groups of particles are purified according to optimized purification processes. Groups of purified particles with narrow size distributions are created using embodiments of the invention.

Abstract: A system is disclosed. The system includes an impact processor comprising an inlet and an outlet, a secondary classifier comprising an inlet and an outlet, the secondary classifier being downstream of and coupled to the impact processor, a recirculation mixer valve downstream of and coupled to the outlet of the secondary classifier, and a recirculation line coupling the outlet of the first secondary classifier to the inlet of the impact processor.

Abstract: Embodiments of the invention are directed to systems and methods for purifying graphite particles. Graphite flakes can be milled, and then separated into groups with different nominal sizes. The different groups of particles are purified according to optimized purification processes. Groups of purified particles with narrow size distributions are created using embodiments of the invention.

Abstract: A system is disclosed. The system includes an impact processor comprising an inlet and an outlet, a secondary classifier comprising an inlet and an outlet, the secondary classifier being downstream of and coupled to the impact processor, a recirculation mixer valve downstream of and coupled to the outlet of the secondary classifier, and a recirculation line coupling the outlet of the first secondary classifier to the inlet of the impact processor.

Abstract: An apparatus for processing graphite particles is disclosed. The apparatus may comprise an electromagnetic radiation emitting device including a microwave device coupled to the reaction chamber for the creation of electromagnetic waves, the electromagnetic waves comprising microwaves. The apparatus may also comprise an inlet attached to the reaction chamber for introducing graphite particles, and an outlet attached to the reaction chamber for allowing processed graphite particles to exit the reaction chamber.