In battery manufacturing, the quality of slurry directly affects battery performance and service life. In particular, electrode slurry is usually prepared by mixing multiple chemical components including active materials, conductive agents, binders and solvents in a specific proportion. To guarantee slurry uniformity and stability and prevent unstable battery performance caused by residual bubbles, efficient mixing and defoaming technology is essential. With its unique stirring principle and outstanding mixing & defoaming performance, the medium-viscosity double planetary mixer serves as an ideal option for battery slurry production.

I. Working Principle of Medium-viscosity Double Planetary Mixer

A medium-viscosity double planetary mixer mainly consists of two stirring paddles and a material tank. The paddles rotate at high speed inside the tank. Following planetary motion tracks, they deliver strong shearing, squeezing and dispersion effects on battery slurry. This unique working principle enables full mixing of all slurry components and effective bubble removal.

II. Key Factors for Efficient Mixing and Defoaming

Powerful Stirring Force

The stirring paddles of the medium-viscosity double planetary mixer feature high rotating speed and large torque, generating strong shear force and impact force. Solid particles in the slurry can be dispersed rapidly and liquid components can be fully blended to improve mixing efficiency.

Precision Structural Design

The equipment adopts precision structural design. The gap between stirring paddles and the tank is very small to eliminate dead zones during stirring. Meanwhile, the shape and dimension of the tank are optimized to facilitate slurry flow and mixing.

Proper Stirring Process Parameters

To achieve efficient mixing and defoaming, process parameters such as stirring speed, duration and temperature shall be adjusted reasonably according to slurry characteristics and production requirements. For instance, properly increasing stirring speed enhances shear force and promotes mixing; extending stirring time achieves better slurry homogeneity; temperature control avoids overheating or overcooling that may impair material performance.

III. Operating Procedures and Precautions

Operating Procedures

(1) Pour battery slurry into the material tank.

(2) Set parameters including stirring speed, time and temperature according to slurry properties and production requirements.

(3) Start the medium-viscosity double planetary mixer to begin stirring.

(4) Observe slurry status during stirring and make adjustments when necessary.

(5) After stirring, shut down the mixer and take out the mixed and defoamed battery slurry.

Precautions

(1) Before operation, confirm the equipment is in good working condition and all components are firmly connected.

(2) Operate strictly in accordance with operation specifications to avoid equipment damage or safety incidents caused by misoperation.

(3) Select proper stirring parameters based on slurry characteristics and production requirements to prevent over-stirring or insufficient stirring.

(4) Maintain the equipment regularly, clean stirring paddles and tank, inspect wear of components and replace damaged parts timely.

Equipped with powerful stirring force, precision structure and adjustable process parameters, the medium-viscosity double planetary mixer can efficiently mix and defoam battery slurry. In battery production, proper operation following standard procedures and precautions helps improve slurry quality and production efficiency, offering strong assurance for battery performance and reliability.