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  1. Home
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  3. 澁谷工業 メカトロ統轄本部
  4. What is the optimal solution for high solid content slurry dispersion? Stabilization methods through inline processing.
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  • Apr 15, 2026
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Apr 15, 2026

What is the optimal solution for high solid content slurry dispersion? Stabilization methods through inline processing.

澁谷工業 澁谷工業 メカトロ統轄本部
In the dispersion of high solid content slurries, viscosity increases and fluidity decreases, making it prone to poor dispersion and variability. The movement of particles is restricted, making it difficult for aggregates to break apart, and it is not uncommon for undispersed areas to remain. Additionally, poor wetting during powder addition and the formation of localized high concentration areas can lead to the occurrence of clumps, which is another challenge. These issues may not be completely resolved even with strong shear applied in subsequent processes. What is important under such high solid content conditions is to efficiently transmit dispersion energy and standardize the processing conditions for each particle. However, in batch processing, variations in flow and residence time can lead to differences in the dispersion state. On the other hand, in inline continuous processing, uniform shear can be applied to particles within the flow, allowing for efficient transmission of dispersion energy even under high viscosity and high solid content conditions. This results in a uniform dispersion state for each particle, achieving stable quality. In the dispersion of high solid content slurries, it is crucial not only to apply strong shear but also to design the process considering flow and processing conditions. Inline processing is one effective method to address these challenges.
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The reason for not being able to disperse at high viscosity.
In high solid content slurries, poor dispersion is likely to occur due to an increase in viscosity. This explains the mechanism and countermeasures.

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Slurry dispersion and mixing system (for batteries and electronic materials)

Reproducibility of slurry dispersion is created from process design.

This is a solid-liquid mixing system designed to solve issues such as dispersion variability and agglomeration that arise in battery and electronic materials slurries, starting from process design. It optimizes dispersion, mixing, and supply as a single integrated system, achieving highly reproducible slurry production. It accommodates electrode slurries, high-viscosity slurries, and nanoparticle dispersions, enabling stable production through inline continuous processing. It supports consistent scale-up from research and development to mass production, balancing quality and productivity. If you are facing challenges with slurry dispersion, please feel free to consult us. We can also offer proposals for test verification and process design.

  • Emulsifier/Disperser
  • Dispersion/emulsification equipment/homogenizer
  • Vacuum degassing machine

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CNT conductive material paste dispersion system

CNT dispersion is determined by the process. Control of aggregation stabilizes conductivity.

In conductive paste using CNT (carbon nanotubes), the strength of aggregation and the difficulty of dispersion are challenges. If not sufficiently dispersed, a conductive network will not form, leading to unstable performance; on the other hand, excessive shear can lead to the destruction of the CNT structure, making the optimization of dispersion conditions essential. Furthermore, even slight differences in the dispersion state can significantly affect viscosity and conductivity, becoming a factor in quality variation during mass production. This system appropriately breaks down CNT aggregation while maintaining structure through process design that includes powder input, wetting processes, dispersion energy control, and circulation conditions. It is designed with the same logic from the lab to mass production, achieving a balance between conductivity and reproducibility.

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  • Vacuum degassing machine

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Disperser for battery materials compatible with high-viscosity slurries.

Supports high-viscosity dispersion of positive and negative electrode slurries. Assists in quality stabilization and mass production scale-up through continuous processing.

This is an inline dispersion system designed for high solid content and high viscosity slurries used in battery materials. It achieves uniform dispersion through high shear dispersion for materials that are prone to aggregation, such as positive electrode materials, negative electrode materials, conductive materials, and CNT dispersions. The inline continuous processing reduces dispersion variability, improves quality reproducibility, and stabilizes production. Additionally, it supports process design that includes powder supply, dispersion, degassing, and transfer. By optimizing powder supply conditions, shear conditions, circulation conditions, and temperature control conditions, it helps stabilize slurry quality. It supports consistent scale-up from lab tests to pilot validation and mass production lines. It is utilized to address specific process challenges of battery material slurries, such as viscosity increase due to high solid content, sedimentation, agglomeration, and CNT aggregation. Furthermore, based on processing volume and material characteristics, it is also possible to propose systems that combine inline dispersers, batch-type dispersers, static mixers, and more.

  • Emulsifier/Disperser
  • Powder Supply Device
  • Dispersion/emulsification equipment/homogenizer

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Inline solid-liquid mixing dispersion system

Inline solid-liquid mixing dispersion system

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[Due to popular demand, additional recruitment! ] The second round of the rental monitor campaign is currently underway! ● [Only 2 companies left] ●

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We are currently holding the second round of the rental monitor campaign for the thermal imaging camera "FLIR C5," limited to the first three companies! Due to popular demand, we have added more rental slots available starting July 1, 2026. (Deadline for applications is June 25, so please hurry.)

Jun 06, 2026

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Fukuda's leak test, leak inspection, leak detection, leak test, integrity test.

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Setting overly optimistic 'projections' compared to reality!? 'Planning Fallacy'

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Jun 05, 2026

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Introducing the applications to be released in May.

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Jun 05, 2026

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It has been published in the list of telework-related tools (Japan Telework Association).

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Jun 05, 2026

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