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Battery Raw Material

Battery Raw Materials

How efficiently electrical energy can be stored and provided in batteries and fuel cells depends on the quality of the raw materials used in their manufacturing process.

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.

Grinding and Spheronization Process - Efficency, Simplicity, Reliability

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:


  • minimized particle stress
  • low amount of superfines
  • much higher yields
  • low specific energy consumption
  • low CO2 footprint at low OPEX
  • only two serial units involved
  • low complexity
  • simple setup
  • high flexibility to adjust for changing quality requirements
  • parallel instead of serial arrangement of Production units
  • high availability of the overall plant, as individual units may be maintained while keeping up the production of parallel units
Adaption of the Particle Size Distribution by Our GRC

Our GRC guide ring classifier offers a further possibility for the targeted modification of a particle size distribution in the fine and coarse range. This classifier is used, among other things, to separate specific ultra-fine fractions in order to achieve steep particle size distributions. This process offers the advantage that the finest fraction can be reused either by blending or in applications with other products.  This increases the overall yield.

Do you have any questions?
I am happy to help you!
Gustavo Angeloci Dos Santos
Account Manager
+1 281 497-5113
NEUMAN & ESSER Process Technology USA, Inc.
1502 East Summitry Circle
Katy, Texas 77449