Advanced Equipment & Turnkey Solutions for Graphite Processing

Natural graphite anodes are made by spheroidizing, purifying, coating, and carbonizing flake graphite. Known for their cost-effectiveness, they are widely used in 3C products and are seeing growing adoption in power batteries as R&D investment increases.

The composite crusher crushes natural graphite through high-speed centrifugal collisions and repeated internal friction. A closed-loop system with screening ensures efficient size reduction and consistent particle size.

The shaping machine and ring roller mill spheroidize flake graphite, enhancing surface area, density, and electrochemical performance. A closed-loop system ensures consistent particle size through repeated collisions and precise screening.

Natural graphite is purified—typically to over 99.95%—by chemical, thermal, or combined methods to remove ash, metals, and other non-carbon impurities, improving electrochemical performance and stability. It is then crushed in a high-speed system where repeated collisions and a closed-loop process ensure precise and consistent particle size.

Coating is the process of applying a thin, uniform carbon or polymer layer onto the surface of graphite particles. This coating improves electrical conductivity, reduces side reactions with the electrolyte, and enhances the stability of the SEI layer, resulting in better cycle performance and safety of the final anode material.

The high-temperature carbonization rotary furnace heats pitch- or resin-coated graphite below 1200 °C to prevent solvent co-intercalation, improving rate capability and cycling stability of the anode material.

The process begins with screening, where graphite particles are separated according to precise size specifications, ensuring uniformity in electrode performance. This is followed by demagnetization, which removes magnetic impurities that may originate from upstream processes, preventing potential damage to battery performance and safety. The final step is packing, carried out under controlled conditions to protect the graphite from moisture, contamination, and handling damage. By integrating these stages into a single, automated production line, the system achieves high efficiency, stable quality, and reliable delivery of finished graphite anode materials.