Lithium-Ion Battery Electrode Coating Machine

Product Specifications

Technical details and manufacturing context for Lithium-Ion Battery Electrode Coating Machine

Definition

This industrial machine is designed for battery production lines to uniformly apply electrode slurry—comprising anode or cathode active material mixtures—onto metal current collector foils. It is a core component in the B2B battery manufacturing supply chain, enabling mass production of lithium-ion batteries for electric vehicles, energy storage systems, and consumer electronics. The equipment is critical for achieving consistent electrode thickness and coating quality, which directly impacts battery capacity, cycle life, and safety. It integrates with drying ovens and calendering equipment in continuous production processes.

The machine uses precision slot-die or comma-bar coating heads to deposit slurry onto moving foils. Controlled gap settings and web tension systems ensure uniform coating thickness across the substrate width. Key parameters include a coating width of 300–1200 mm, maximum coating speed of 30–80 m/min, wet coating thickness range of 50–300 μm, and thickness uniformity of ±1.5% (CV). Web tension control ranges from 50–500 N/m, and coating gap accuracy is ±0.005 mm. Operating temperature should be 15–35°C, with humidity ≤60% RH. Electrical supply is three-phase, 380 V AC ±10% (50/60 Hz) per IEC 60038, with installed power of 45–120 kW. Compressed air supply is 0.6–0.8 MPa per ISO 8573-1. Machine weight varies from 8000–15000 kg, and footprint is approximately 12000×3000×2500 mm. Ingress protection rating is IP54 per IEC 60529.

Materials used include stainless steel 316L, hardened tool steel, ceramic coating components, and precision linear bearings. These contribute to durability and precision in demanding production environments.

For procurement, verify model-specific values and standards with the legal manufacturer or supplier. The listed standards are references for verification, not certifications of compliance.

Working Principle

The machine operates by feeding a continuous metal foil (current collector) through a coating station. A precision slot-die or comma-bar coating head deposits a controlled layer of electrode slurry onto the foil surface. The gap between the coating head and the foil is set with high accuracy (±0.005 mm) to achieve the desired wet coating thickness (50–300 μm). Web tension is maintained within 50–500 N/m to prevent wrinkles or stretching. The coated foil then moves to a drying oven, where solvent is evaporated. The machine integrates with downstream calendering equipment to compress the electrode to final density. Uniformity across the web width is ensured by precise gap control and tension systems, achieving a CV of ±1.5%.

Common Materials

Stainless Steel 316L, Hardened Tool Steel, Ceramic Coating Components, Precision Linear Bearings

Technical Parameters

Parameter	Typical range	Notes & selection driver
Coating WidthRequired	300–1200 mm	Maximum substrate width capacity
Maximum Coating SpeedRequired	30–80 m/min	Maximum linear speed during coating operation
Wet Coating Thickness RangeRequired	50–300 μm	Range of wet slurry coating thickness achievable
Thickness UniformityRequired	±1.5 %	Cross-web thickness uniformity (CV value)
Web Tension ControlRequired	50–500 N/m	Precision tension control range for substrate handling
Coating Gap Accuracy	±0.005 μm	Precision of coating head gap setting
Operating Temperature	15–35 °C	For optimal slurry viscosity
Operating Humidity	≤60 % RH	Higher humidity affects drying
Electrical Supply	380 ±10% V AC	Three-phase, 50/60 HzIEC 60038
Installed Power	45–120 kW	Depends on drying capacity
Compressed Air Supply	0.6–0.8 MPa	Clean, dry air requiredISO 8573-1
Machine Weight	8000–15000 kg	Varies with configuration
Footprint (L×W×H)	12000×3000×2500 mm	Approximate, depends on options
Ingress Protection Rating	IP54	Protects against dust and water splashesIEC 60529

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

Slot-Die Coating Head
Precisely deposits electrode slurry onto substrate

Material: Stainless Steel 316L with ceramic lips
Precision Gap Adjustment System
Controls distance between coating head and substrate

Material: Hardened Tool Steel with linear encoders
Web Tension Control Unit
Maintains consistent substrate tension during coating

Material: Stainless Steel with servo motors
Slurry Supply System
Feeds and meters electrode slurry to coating head

Material: Stainless Steel with precision pumps
Edge Guide System Optional
Maintains substrate alignment during coating process

Material: Aluminum alloy with optical sensors

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Lithium-Ion Battery Electrode Coating Machine.

Manufacturers of Lithium-Ion Battery Electrode Coating Machine

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Frequently Asked Questions

What is the typical coating width range for this machine?

The coating width range is 300–1200 mm, depending on the model and configuration. The actual width capacity should be confirmed with the manufacturer for the specific machine.

What is the maximum coating speed?

The maximum coating speed is 30–80 m/min, depending on the slurry properties and drying capacity. The achievable speed may vary with the specific application and must be verified with the supplier.

What is the wet coating thickness range?

The wet coating thickness range is 50–300 μm. This range is adjustable via the coating head gap setting, which has an accuracy of ±0.005 μm. The final dry thickness depends on the slurry solids content and drying conditions.

What are the electrical and compressed air requirements?

The machine requires a three-phase electrical supply of 380 V AC ±10% (50/60 Hz) per IEC 60038, with installed power ranging from 45–120 kW. Compressed air supply should be clean and dry at 0.6–0.8 MPa per ISO 8573-1. Verify these requirements with the manufacturer for the specific model.

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pressure:	0.1-0.5 MPa (coating head), 0.05-0.3 MPa (backing roller)
flow rate:	10-500 mL/min (adjustable per coating width)
temperature:	20-40°C (operating), 5-50°C (storage)
coating speed:	0.5-30 m/min
coating width:	100-1000 mm
coating thickness:	50-300 μm (wet), 20-150 μm (dry)
slurry concentration:	30-60% solids by weight