Battery Grade Anode Graphite, made from natural graphite or in form of synthetic graphite based on petroleum coke, is the key raw material, for the anodes of Li-ion batteries. Even as silicon, which is currently added at 4-8%, is gaining importance, the characteristics of the graphite are most critical to improve battery performance.
Battery Performance, such as high capacity and energy density as well as short charging cycles, is particularly important for use in electric vehicles (EV).
Battery Anode Grade graphite therefore must have special properties to influence battery performance positively. Decisive factors are:
While the product characteristics determine the performance, the grinding and spheronization process and equipment to achieve these characteristics, determine the economic and ecologic viability of such production.
To provide Graphite producers with a high capacity, low-energy, high-yield, economic and ecologic solution, we developed our NEA|Sphere solution.
Contrary to the traditional micronisation and spheronization process for natural graphite, where each particle has to pass many individual mills in a cascading mill line, in the NEA|Sphere solution each particle only passes one grinding unit and one spheronization unit. Breaking down the process into the basic two process steps and using dedicated units to perform these process steps, offers the following advantages: