Slurry Supply System for Electrode Coating

Product Specifications

Technical details and manufacturing context for Slurry Supply System

Definition

The Slurry Supply System is a critical component of lithium-ion battery electrode coating machines, responsible for the controlled storage, agitation, pumping, and precise volumetric delivery of electrode slurry (a mixture of active materials, conductive additives, binders, and solvents) to the coating applicator. It ensures consistent slurry viscosity, prevents sedimentation, and maintains uniform material flow for high-quality electrode coating. The system typically includes a slurry tank with an agitator to maintain homogeneity, a pump (often diaphragm or progressive cavity type) that draws the slurry and feeds it through pipes, and a precision metering unit (e.g., gear pump or servo-driven piston) that controls the flow rate based on the coating machine's speed and desired coat weight. The slurry is then delivered to the coating head's distribution manifold. Key parameters include a flow rate range of 0.5–5 L/min, delivery accuracy of ±0.5%, and compatibility with slurry viscosities from 1000 to 20000 mPa·s. The system operates at pressures of 1.0–1.6 MPa, within an ambient temperature range of 10–40 °C, and requires a power supply of 220–380 V AC (IEC 60038). It offers ingress protection ratings of IP54–IP65 (IEC 60529). Wetted parts are made of corrosion-resistant stainless steel 316L (ASTM A240). The system's weight ranges from 150 to 300 kg, and typical dimensions are 1200×800×1500 mm (L×W×H). These values are reference ranges and must be verified for the specific model and application. The system is designed for use in electrode coating lines, and its selection depends on factors such as slurry properties, required flow rate, and coating speed. Regular maintenance includes checking agitator operation, pump seals, and metering unit calibration. Failure to maintain proper agitation can lead to sedimentation and inconsistent coating. The system should be operated within specified pressure and temperature limits to avoid damage. Always consult the manufacturer for model-specific specifications and compliance with applicable standards.

Working Principle

The system operates by storing slurry in a tank with an agitator to keep it homogeneous. A pump, often a diaphragm or progressive cavity type, draws the slurry and pushes it through pipes to a precision metering unit, such as a gear pump or servo-driven piston. This unit adjusts the flow rate based on the coating machine's speed and desired coat weight. The metered slurry is then delivered to the coating head's distribution manifold, ensuring a consistent supply for uniform electrode coating.

Common Materials

Stainless steel (316L), PTFE (Teflon), Ceramic

Technical Parameters

Parameter	Typical range	Notes & selection driver
Flow Rate	0.5–5 L/min	Typical range for electrode slurry coating
Delivery Accuracy	±0.5 %	Ensures consistent coating weight
Slurry Viscosity Range	1000–20000 mPa·s	Compatible with typical electrode slurries
Temperature Range	10–40 °C	Operating ambient temperature
Power Supply	220–380 V AC	Three-phase or single-phaseIEC 60038
Ingress Protection	IP54–IP65	Dust-tight and water-resistantIEC 60529
Material of Wetted Parts	316L	Corrosion-resistant stainless steelASTM A240
Weight	150–300 kg	Depends on configuration
Dimensions (L×W×H)	1200×800×1500 mm	Typical footprint

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Slurry Tank
Stores and agitates the electrode slurry to prevent settling and maintain uniformity.

Material: Stainless steel 316L
Agitator
Mixes the slurry continuously within the tank to ensure consistent viscosity and particle dispersion.

Material: Stainless steel with PTFE seals
Metering Pump
Precisely controls the volume of slurry delivered per unit time to the coating head.

Material: Stainless steel, ceramic
Distribution Manifold
Evenly distributes the slurry from the supply line across the width of the coating head.

Material: Stainless steel
Control System
Regulates pump speed, agitation, and flow based on coating machine signals and set parameters.

Material: Electronic components, housing (steel or aluminum)
Slurry Pipes
Carries the slurry from the tank and pump to the metering unit and coating head.

Manufacturers of Slurry Supply System

Manufacturer profiles associated with Slurry Supply System.

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Frequently Asked Questions

What is the typical flow rate range for this system?

The typical flow rate range is 0.5–5 L/min, but this depends on the specific model and application. Always verify with the manufacturer.

What materials are used for wetted parts?

Wetted parts are typically made of stainless steel 316L, PTFE, or ceramic, as listed in the reference data. Confirm material compatibility with your slurry.

What standards are referenced for operating pressure and ingress protection?

Operating pressure references, and ingress protection references IEC 60529. These are verification references, not proof of certification.

How should I verify the system's performance for my application?

Check the manufacturer's datasheet for model-specific parameters such as flow rate, accuracy, viscosity range, and dimensions. Ensure the system meets your process requirements.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0-10 bar (system), 0-5 bar (metering)
flow rate:	0.1-100 L/min (adjustable)
temperature:	15-40°C (operating), 5-50°C (storage)
viscosity range:	500-50,000 cP
slurry concentration:	30-70% solids by weight

Slurry Supply System

Product Specifications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards