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Mixing and Dispersing Machine Product List

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Negative electrode slurry solid-liquid mixing and dispersion system

The negative electrode slurry's key is balancing viscosity and dispersion. Process design that can be reproduced up to mass production.

Negative electrode slurry (graphite, Si-based) tends to have high solid content and high viscosity, making it a challenging material for mixing and dispersion. Issues such as clumping during powder addition, poor binder dispersion, mixing failures due to increased viscosity, and variations in coating properties are common, especially with Si-based materials, where the dispersion state directly affects battery performance and lifespan. Additionally, there are many cases where dispersion can be achieved in the research phase but cannot be reproduced during mass production. This system is designed to optimize the entire process from powder supply to dispersion and formulation, optimizing input conditions, dispersion energy, and fluid design. It achieves uniform dispersion even under high viscosity conditions and ensures reproducibility through consistent scale-up design from the lab to mass production. We propose the optimal process tailored to material properties and formulation conditions.

Company：澁谷工業
Price：Other

Emulsifier/Disperser
Vacuum degassing machine
Dispersion/emulsification equipment/homogenizer
Mixing and Dispersing Machine

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Solid-liquid mixing dispersion system for LiB (lithium-ion battery materials)

The quality of the battery slurry is determined by the process. A dispersion design that can be reproduced from research to mass production.

In the manufacturing of lithium-ion batteries (LiB), the dispersion quality of the positive and negative electrode slurries and conductive material pastes significantly affects battery performance, lifespan, and safety. On-site challenges include clumping during powder input, agglomeration of conductive materials, poor mixing due to increased viscosity, and variability between batches. Particularly in the research phase, issues may not arise, but many cases are observed where they cannot be replicated during mass production. Many of these challenges stem not from individual equipment but from the entire process, including input conditions, dispersion energy, fluid design, and process configuration. This system is designed to provide a consistent approach from powder supply to dispersion and formulation, establishing an optimal dispersion process tailored to material properties and formulation conditions. By designing with the same logic from the lab to small machines, pilot, and mass production lines, reproducibility and quality stability during scale-up are achieved. It is also capable of accommodating process design according to the characteristics of the positive electrode, negative electrode, and conductive materials.