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XIAMENRoll to Roll Coating Machine for Lithium Battery Electrode
Intermittent Coating
Continuous Coating
Product Overview
The TOB-SY300J Roll to Roll Coating Machine is a high-precision electrode coating system designed for laboratory research and pilot-scale production of lithium-ion batteries. It is engineered to deliver stable coating quality, flexible process control, and industrial-level coating accuracy in a compact lab-scale platform.
This machine adopts an advanced three-roll transfer coating structure, combined with closed-loop tension control and precision drying system, ensuring uniform slurry distribution and excellent coating consistency across the substrate.
A key advantage of this system is its ability to freely switch between continuous coating and intermittent coating modes, making it highly adaptable for different electrode designs, including full coating, gap coating, and patterned coating processes.
It is widely used for cathode and anode coating processes involving materials such as LFP, NMC, graphite, and silicon-carbon systems, as well as other functional thin film applications.
Key Features
| ■ Switchable Continuous & Intermittent Coating Modes | ■ High Precision Coating Control (±3μm) |
|
The
system supports both continuous coating and interval (gap) coating, allowing
users to easily switch between two modes depending on process
requirements. ● Continuous coating is ideal for uniform full-surface electrode coating ● Intermittent coating enables precise control of coating length and spacing, essential for battery tab areas and advanced electrode structures This flexibility significantly reduces equipment limitations and improves R&D efficiency. |
The machine achieves ±3μm
coating accuracy, ensuring highly uniform film thickness across the
substrate. Combined with precise slurry feeding and mechanical stability, this ensures: ● Consistent electrode performance ● Reduced material waste ● Reliable repeatability for experimental validation |
| ■ Three-Roll Transfer Coating Technology | ■ Advanced Substrate Tension Control System |
|
Unlike
traditional coating methods, this system uses three-roll transfer coating,
which provides: ● A wider process window for different slurry viscosities ● Improved slurry distribution before coating ● Reduced defects such as streaking and uneven edges This is especially important for high-performance battery electrode fabrication. |
Equipped with automatic constant
tension control and web guiding (EPC system), the machine ensures stable
substrate movement throughout the coating process. Benefits include: ● Prevention of wrinkles and deformation ● Accurate alignment for double-sided coating ● Stable transport of thin aluminum and copper foils |
| ■ High-Efficiency Dual-Side Drying System | ■ PLC Control with Touch Screen Interface |
|
The
integrated hot air drying oven features top and bottom dual-side air blowing,
ensuring: ● Uniform solvent evaporation ● Improved drying efficiency ● Better coating adhesion and film formation The system supports both NMP-based and water-based electrode slurries. |
The machine is controlled by a
PLC system with touch screen interface, providing: ● Real-time parameter adjustment ● Easy operation and monitoring ● Stable and reliable system performance |
| ■ Optional Solvent Recovery System | |
|
For
NMP-based processes, an optional solvent recovery system can be integrated
to: ● Reduce environmental impact ● Lower solvent consumption cost ● Meet industrial compliance requirements |
Technical Specifications
| Item | Specification |
| Model | TOB-SY300J |
| Machine Type | Lab Roll to Roll Coating Machine |
| Dimensions | L1800 × W1300 × H1200 mm |
| Weight | About 1.2T |
| Power Supply | 3 Phase 380V, 50Hz |
| Voltage Fluctuation | +8% ～ –8% |
| Total Power | 10KW |
| Compressed Air | ≥5.0 kg/cm² (after drying & filtration) |
| Suitable Materials | LFP, LCO, LMO, Graphite, Silicon Carbon |
| Coating Method | Continuous coating / Intermittent coating |
| Oven Length | 1 section (1 meter) |
| Substrate Thickness | Al foil: 8–30μm / Cu foil: 8–30μm |
| Roll Width | 330 mm |
| Effective Coating Width | ≤280 mm |
| Coating Accuracy | ±3μm |
| Coating Weight Accuracy | ±1.0% |
| Slurry Viscosity | 2000–12000 mPas |
| Dry Thickness | 20–200μm |
| Solvent Type | NMP / Water-based |
| Solid Content | 20–85% |
| Coating Dimension Accuracy | L≤±1mm, W≤±0.5mm |
| Alignment Accuracy | L≤±1mm, W≤±0.5mm |
Applications
This roll to roll coating machine is suitable for a wide range of applications:
● Lithium-ion battery electrode coating
● Sodium-ion battery research
● Supercapacitor electrode fabrication
● Functional thin film coating (ceramics, conductive films, etc.)
Compatible materials include:
● Lithium iron phosphate (LFP)
● Lithium cobalt oxide (LCO)
● Lithium manganese oxide (LMO)
● Graphite and silicon-carbon anodes
Installation Requirements
| Ambient Temperature: | Machine head: 25–30℃ |
| Others: 10–40℃ | |
| Relative Humidity: | Cathode process: ≤35% RH |
| Anode process: ≤98% RH |
Why Choose TOB-SY300J
Compared with standard lab coating machines, this system provides:
● Dual coating modes in one machine (continuous + intermittent)
● Industrial-level coating precision in a lab-scale setup
● Stable substrate handling for thin foil materials
● Scalable process verification before mass production
Three Coating Methods Options
1. Comma Blade Coating（only for continuous coating）
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2. Roll Coating (Transfer Coating) -Continuous Coating and Intermittent Coating
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PRODUCT DISPLAY
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Explore More Battery Coating Machines
Email : tob.amy@tobmachine.com
Phone number :+86 181 2071 5609
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