1. Project Background
With the rapid global growth of the new energy vehicle industry, Japan has emerged as one of the world’s leading battery manufacturing hubs. As a result, the quality requirements for battery raw materials have reached extremely stringent standards.
A Japan lithium battery material manufacturer required ultrafine grinding treatment of lithium carbonate (Li₂CO₃) to enhance its dispersion performance and reaction activity in electrode applications. The customer ultimately selected the MJW Series ACM ultrafine grinding and classifying mill from Episk pulver, aiming to achieve exceptionally precise particle size control.
2. Technical Specifications and Requirements
As a core raw material for batteries, lithium carbonate is highly sensitive to product purity and particle size distribution. The customer’s specific requirements were as follows:
- Processed material: Lithium Carbonate (Li₂CO₃)
- Equipment model: Epic Powder MJW Series Air Classifier Mill (Ultrafine Grinding & Classifying Mill)
- Final particle size: d50 = 7 μm
- Designed capacity: 50 kg/h
3. Core Advantages of the Episk pulver MJW Series Air Classifier Mill for Lithium Carbonate Processing
In response to the hygroscopic nature of lithium carbonate and its sensitivity to metallic contamination, the MJW Series Air classifier mill for Lithium Carbonate Processing demonstrated outstanding technical performance:
A. Integrated “Grinding + Classifying” Design
The MJW Series integrates ultrafine grinding and precision air classification within a single system. Through a high-speed rotating classifier wheel, particles larger than 10 μm can be accurately removed, ensuring that the final product maintains a strictly stable d50 of 7 μm.
This precise cut-point control significantly enhances product consistency.
B. Suitable for Laboratory and Small-Scale High-Purity Production
The 50 kg/h production capacity is highly suitable for lithium battery material R&D pilot lines or high-end small-batch customized manufacturing. The equipment features a compact structure and small footprint, making it easy to integrate into the existing production lines of Japan customers.
C. Metal Contamination Control (For Battery Materials)
To meet the strict foreign metal control requirements of the lithium battery industry, the key contact parts of the MJW Series are equipped with ceramic liners and hard alloy materials.
This effectively prevents iron contamination during the grinding process and ensures the chemical purity of the final product.
4. Project Implementation Value
By adopting the Epic Powder MJW solution, the customer successfully achieved the following production objectives:
| Project Value | Description |
|---|---|
| Precise Particle Size Achievement | The finished product d50 remains stable at 7 μm, meeting the fineness requirements of next-generation high-energy-density lithium-ion batteries. |
| Low-Temperature Grinding Control | The air grinding process provides a natural cooling effect, effectively preventing thermal degradation of lithium carbonate caused by heat accumulation during milling. |
| Optimized Production Environment | A fully enclosed negative-pressure production system completely eliminates material leakage and cross-contamination, complying with the high environmental standards of the Korean electronic materials industry. |