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.

The coating and granulation rotary kiln modifies the surface of spherical graphite by forming a uniform amorphous carbon layer. This coating repairs structural defects and shortens lithium-ion diffusion paths, enhancing initial coulombic efficiency, cycling performance, and overall electrochemical kinetics.

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 final product handling line integrates screening, blending, demagnetization, and packaging for natural graphite. Using a sealed negative-pressure pneumatic system, it minimizes dust and contamination while ensuring efficient processing. All operations are centrally managed through a unified digital control system for remote monitoring.