Lithium battery raw material modification machine, spheronizing machine, dispersing machine

Release time:

2025-04-07 09:57

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In the field of lithium-ion battery anode material preparation, the production process of high-end artificial graphite is undergoing technological innovation. Among the four major processes of traditional crushing, granulation, graphitization, and magnetic separation, the technological upgrading of the granulation process has become a key breakthrough in improving material performance. For high-end application scenarios, the introduction of secondary granulation, carbonization coating, and doping modification processes has put forward higher requirements for the performance of core equipment.

The secondary granulation process uses small-particle base materials after graded crushing, and uses asphalt as a binder to reconstruct the particle size in a closed reactor. By precisely controlling the reaction temperature and stirring rate, uniform coating of asphalt on the surface of the base material is achieved. This process improves the rate performance of the material by increasing the number of lithium-ion diffusion channels by 15-20% and the low-temperature capacity retention rate by 10-15%.

The honeycomb mill coating equipment shows significant advantages in this process:

Multi-stage depolymerization system: Using a honeycomb-shaped grinding chamber structure, it can effectively disperse agglomerated particles to a particle size range of 5-10μm ； Simultaneous processing technology: integrates drying, surface modification and coating medium atomization and spheroidization function in one achieving multi-functional processing ； Multi-medium synergy: Supports the simultaneous introduction of two or more coating materials (such as resin, carbon nanotubes), improving interface compatibility ； Intelligent temperature control: Precisely control the process temperature to ensure the optimal balance between the asphalt softening point and volatiles 。 The equipment, through modular design, can adapt to different capacity needs, not only solves the problems of particle morphology control and poor coating uniformity, but also provides reliable material preparation guarantee for the development of high-energy-density batteries.

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