With the development of power batteries, energy storage, and high-performance lithium-ion batteries, carbon nanotube conductive slurries, CNT conductive additives, and carbon black composite conductive additives have placed higher demands on dispersion stability, batch consistency, and large-scale production capacity.
To meet customers’ mass production needs, Boyee Industrial provided a complete production line solution for an oil-based carbon nanotube conductive slurry with an annual capacity of 10,000 metric tons for a project in Hubei. The material system consists of a carbon nanotube and carbon black composite, and the overall production line is designed around processes such as feeding, pre-mixing, coarse grinding, fine grinding, and finished product storage.
Pictured: Actual photos of the Boyee Industrial conductive slurry production line project in operation
Project process flow: Unpacking and feeding → Pre-mixing → Coarse grinding → Fine grinding → Finished product storage
In the front-end stages, unpacking, feeding, and pre-mixing ensure that powders such as carbon nanotubes and carbon black are fully wetted and preliminarily dispersed. The slurry then enters the coarse and fine grinding stages. By optimizing the selection of nano-grinding mills, grinding media, and process parameters, the system further breaks down deagglomeration and achieves uniform dispersion, enhancing grinding efficiency while preserving the structural integrity of the carbon nanotubes and ensuring slurry stability.
The milled product is transferred to the storage system, where a well-designed circulation and conveying system minimizes sedimentation and localized concentration fluctuations, ensuring a stable material supply for subsequent production stages.
1) Key Challenges in Producing 10,000-metric-ton-scale Carbon Nanotube Slurry
Carbon nanotubes have a high length-to-diameter ratio, making them prone to entanglement and agglomeration. After adding carbon black, it is also necessary to achieve uniform composite dispersion between the two conductive materials.
Therefore, a 10,000-metric-ton-scale CNT conductive slurry production line must not only address particle dispersion but also balance the following factors:
stable feed rate, pre-dispersion efficiency, CNT deagglomeration, carbon black dispersion, grinding efficiency, slurry stability, batch consistency, and continuous production capability.
Pictured: Actual photos of the Boyee Industrial conductive slurry production line project in operation
Scaling up from laboratory-scale processes to 10,000-metric-ton-scale production truly demands the systemic coordination among various equipment and process steps.
2) Boyee Complete Carbon Nanotube Slurry Production Line Solutions
Focusing on material systems such as single-walled carbon nanotubes, multi-walled carbon nanotubes, carbon black composite conductive additives, and conductive slurries for new energy applications, Boyee Industrial provides complete carbon nanotube slurry production line solutions that cover all stages—including powder feeding, pre-mixing and dispersion, nano-grinding, homogenization, slurry conveying, finished product storage, and automated control—to achieve full-process integration from raw material processing to the preparation of finished slurry.
Pictured: Boyee Industrial's Single-Walled Carbon Nanotube Production Line Solution
For different material systems, solid content levels, slurry viscosities, and target dispersion requirements, Boyee Industrial can integrate material characteristics, process requirements, and production capacity planning to conduct process design, equipment selection, and system configuration, thereby enhancing carbon nanotube dispersion efficiency, slurry uniformity, and the stability of continuous production.
Leveraging its technical and engineering expertise in nano-grinding, mixing and dispersion, conductive slurry preparation, and full-line system integration, Boyee Industrial provides customers with integrated services ranging from process validation, equipment selection, and production line design to large-scale production, facilitating the stable and efficient industrial production of carbon nanotube conductive slurries and advanced conductive materials.
