Single Sided Battery Electrode Extrusion Coating Machine

Product Overview

This single-sided battery electrode coating system is engineered for controlled application of lithium-ion battery slurries onto foil substrates. It combines precision web handling, automatic PID closed-loop tension control, servo-driven coating control, and an electrically heated hot-air drying section in one integrated process platform. The equipment supports repeatable coating quality where dry thickness, coating width, intermittent pattern accuracy, and substrate stability directly affect electrode performance.

The unit is suited to lithium battery laboratory work, process development, pilot-scale electrode preparation, and advanced materials research. It accommodates oil-based and water-based cathode and anode slurry systems, including lithium iron phosphate, lithium cobalt oxide, ternary materials, lithium manganate, nickel cobalt manganese materials, lithium titanate, and carbon graphite. Continuous coating and front-and-back three-section unequal-pitch intermittent coating modes support varied electrode design requirements.

Built for demanding coating workflows, this system uses a PLC control architecture, high-precision servo motors, and a closed-loop tension system with accuracy reaching +/-1 N. Independent oven-zone control, stainless-steel airflow components, adjustable exhaust, and over-temperature protection help maintain stable operation through long coating runs while supporting consistent product dimensions and areal-density control.

Key Features

• Closed-Loop Web Tension Control: Fully automatic PID closed-loop tension control reaches a stated accuracy of +/-1 N. Stable foil transport helps protect coating registration, dimensional consistency, and process repeatability during low-speed electrode production.

• Broad Slurry-System Compatibility: The equipment supports oil-based or water-based lithium iron phosphate and carbon graphite systems, plus oil-based lithium cobalt oxide, ternary, lithium manganate, nickel cobalt manganese, and lithium titanate systems. This flexibility allows one platform to support both cathode and anode development programs.

• Precision Coating Capability: Guaranteed coating width is 100-280 mm within a 350 mm roller-face design width. The stated coating thickness capability is 10 um with +/-1% dry-thickness accuracy and +/-2 um, supporting tightly managed electrode specifications.

• Intermittent and Continuous Processing: Front-and-back three-section unequal-pitch intermittent coating, automatic second-side tracking, and continuous coating modes provide practical flexibility for tab areas, patterned electrode formats, and continuous web trials. The minimum intermittent length is 5 mm and the minimum multi-section coating length is 20 mm at coating speeds of 1 m/min or below.

• Controlled Drying Architecture: Three independent 1.0 m oven sections use electric heating and hot-air circulation. Each section can be controlled independently for normal operating temperature control and over-temperature alarm protection, reducing dependence between drying stages.

• Adjustable Airflow Management: Variable-frequency fan control makes airflow adjustment convenient, while separate upper and lower airflow can be fine-tuned by valves. Each section also has independently adjustable mechanical exhaust control to help align drying conditions with slurry and solvent requirements.

• Durable Stainless-Steel Oven Components: The oven uses a SUS304 stainless-steel inner liner, SUS201 outer liner, and SUS304 stainless-steel fans. This material selection supports long-term use in heated electrode drying operations.

• Heat-Recovery-Oriented Operation: The drying system includes hot-air recovery utilization to reduce operating cost. Air is heated before entering the oven, and the fan is controlled by a frequency converter for adjustable air delivery.

Applications

Technical Specifications

Why Choose This Product

• Process-Controlled Electrode Coating: Automatic PID tension control, servo-based motion components, and controlled coating modes focus the system on the repeatability needed for electrode process development.

• Integrated Coating and Drying Capability: The combination of slurry application, web movement, and three independently controlled electric-heating sections helps teams manage a complete electrode-coating workflow on one platform.

• Designed for Material Flexibility: Compatibility with specified cathode and anode slurry systems, foil dimensions, viscosity range, and solids-content ranges supports varied battery research programs without changing the core processing approach.

• Robust Oven Construction: Stainless-steel liners and fans, adjustable airflow, variable-frequency fan control, and over-temperature shutdown protection support durable operation in heated drying applications.

• Configurable Support Scope: Interfaces can be assisted for solvent recovery, while NMP concentration alarms and air-chamber pressure monitoring can be separately quoted when the process requires those functions.

Contact us for a quote or a custom solution aligned with your electrode materials, substrate format, coating pattern, and drying-process requirements.

Trusted by Industry Leaders