Yushun Technology | Breaking Through the Bottleneck of Solid-State Battery Production! How Yushun's Double Planetary Mixer Solves Industry Pain Points

At a pivotal moment in power battery technology evolution, solid-state batteries have emerged as a global R&D and industrialization priority due to their exceptional advantages in energy density and safety. However, the path to mass production faces significant challenges-among them, the uniform mixing of electrode slurry stands as a critical bottleneck restricting both performance and scalability.

Conventional mixing equipment struggles with the ultra-high viscosity and high solid content of solid-state battery slurries, leading to issues such as uneven mixing, trapped air bubbles, and material agglomeration. Yusheng Intelligent's dual planetary mixer, with its unique design and technical advantages, has become a key solution to overcoming these challenges.

Battery electrode slurry is a non-Newtonian fluid, placing extremely high demands on mixing equipment during preparation. Solid-state battery slurries, with their significantly higher solid content (typically exceeding 60%), exhibit far greater viscosity than conventional lithium battery slurries and demonstrate even more complex rheological properties.

These characteristics create three major process challenges:

High Viscosity Challenge: The unique combination of solid electrolytes and electrode materials results in slurry viscosity far surpassing that of traditional lithium batteries. Ordinary mixers lack sufficient torque for effective homogenization.

Uniformity Requirement: The stability of solid-solid interfaces in solid-state batteries directly impacts electrochemical performance, demanding molecular-level uniform distribution of active materials, solid electrolytes, and conductive agents.

Air Bubble Dilemma: Residual bubbles can cause poor interfacial contact, creating "dead zones" that severely compromise battery performance and safety.

Advantages of Yusheng Intelligent Dual Planetary Mixer

High-Quality Construction

Planetary gearbox and high-speed dispersion bearing seat made of stainless steel, fully sealed with vacuum/pressure retention capabilities.

Precision Temperature Control

Probe rotates with the planetary gearbox, ensuring temperature display accuracy within ±1°C (measured at barrel wall).

Ultra-Precise Mixing Blades

Blades are precision-cast and CNC-machined, guaranteeing consistent spiral alignment and tight tolerances between blades, blade-to-wall, and blade-to-bottom.

Advanced Mixing & Dispersion Mechanism

Hexagonal blade cross-section enhances kneading effect during operation.

The high-speed dispersion disk rotates counterclockwise while orbiting, enabling rapid material homogenization.

Minimal Clearance Design

Ultra-low gaps between blades, blade-to-wall, and blade-to-bottom for superior shear efficiency.

High-Viscosity & High-Solid Content Adaptability

Optimized for demanding battery electrode slurries (anode/cathode) across diverse mixing processes.

Easy-Clean Innovation

Surface polish ≤Ra0.32; quick-disassembly design for dispersion/stirring components enables effortless cleaning.

Fully Integrated Automated System

Seamless modular integration of pre-mixing, stirring, transfer, and filtration processes with full automation.

One major obstacle to the widespread adoption of solid-state batteries is the transition from laboratory settings to mass production lines-from small-scale lab manufacturing to large-scale production. Yushun Intelligent Dual Planetary Mixer employs precision manufacturing processes to ensure long-term stable operation. Yushun adheres to the "zero-to-zero" assembly philosophy for core components.

Ultra-high machining accuracy: The machining tolerance of core components (such as mixing shafts, dispersing shafts, and various bore positions) is controlled within 30μm, ensuring exceptional concentricity and flatness.

Top-tier bearing configuration: Equipped with fully imported angular contact ball bearings from Sweden's SKF, which offer higher radial and axial load capacity compared to traditional bearings. These bearings can operate continuously at a linear speed of 21 m/s for multiple years.

Low-noise and smooth operation: Precision assembly ensures stable equipment operation, with noise levels below 70 decibels at a distance of one meter, providing a comfortable production environment.