Continuous Lithium Battery Electrode Sheet Slitter 7 to 500 mm Slitting Width

Product Overview

This continuous lithium battery electrode sheet slitting system converts rolled positive and negative electrode sheets into accurately sized rolls for downstream cell fabrication. The equipment uses powered web transport to guide coated, roll-pressed electrode material through a configured knife assembly, then separates and rewinds the finished strips. Its adjustable slitting width from 7 to 500 mm supports a broad range of process specifications.

Designed for coated aluminum and copper foil electrodes, the unit supports lithium iron phosphate, lithium cobalt oxide, lithium manganese oxide, ternary, lithium nickel cobalt manganese oxide, lithium titanate, and carbon graphite systems. It is suitable for battery R&D, pilot production, advanced materials laboratories, and electrode preparation workflows requiring repeatable roll-to-roll processing.

Stable web movement is supported by an edge alignment system, tension transmission system, and dust extraction system. Together with the configured knife assembly and two-shaft differential winding arrangement, these systems help maintain consistent strip handling and support process requirements for slitting stability, burr control, and straightness.

Key Features

• Broad Slitting Width Range: The equipment provides a guaranteed slitting width of 7 to 500 mm, allowing one system to accommodate narrow electrode strips and wider roll-processing requirements.

• Roll-to-Roll Electrode Processing: Powered traction feeds rolled, positive or negative, roll-pressed electrode sheets through the cutting section for continuous processing and organized rewinding.

• Configured Combination Knife Assembly: The combination knife slitting method enables the cutting arrangement to be set according to the required process specification and electrode layout.

• Controlled Web Alignment: An edge alignment system helps keep the moving electrode sheet positioned correctly during transport, supporting stable tracking through the slitting area.

• Integrated Tension Transmission: The tension transmission system supports controlled movement of thin coated foil, helping the web travel smoothly through cutting and winding operations.

• Separated Finished-Roll Collection: Upper and lower winding mechanisms collect the separated electrode strips into individual rolls, maintaining an orderly output arrangement after slitting.

• Dedicated Edge Trim Collection: Both side-edge materials are collected by a dedicated edge-material mechanism, helping keep trim handling organized and reducing loose waste around the working area.

• Dust Extraction Support: The separate dust extraction system assists auxiliary precision operation by collecting dust generated during electrode slitting and supporting a cleaner processing environment.

• Wide Material Compatibility: The system processes aluminum foil from 8 to 30 micrometers and copper foil from 6 to 30 micrometers, with base-material widths from 50 to 500 mm and maximum roll diameters of 400 mm.

• Adjustable Operating Speed: Mechanical running speed reaches 50 m/min, while slitting speed is adjustable from 0 to 40 m/min according to the required slitting result.

Applications

Technical Specifications

Product and Process Configuration

Running Substrate Parameters

Electrode and Auxiliary Equipment Parameters

The process begins with a roll-pressed positive or negative electrode sheet installed on the unwinding mechanism. Powered traction moves the web into the knife group, where the combination knife arrangement performs the required longitudinal slitting. The cut strips then travel to the upper and lower winding mechanisms, which collect the separated material into rolls using the two-shaft differential-shaft offset winding configuration.

The auxiliary systems are important to the overall process result. Edge alignment helps maintain the intended web position, while the tension transmission system supports smooth movement of the thin foil and coated electrode. Dust extraction assists the working process by collecting material generated during cutting. These functions are coordinated to support stable electrode travel and help keep slitting results within the required process range for burr and straightness.

The specified substrate range covers aluminum foil with thicknesses of 8 to 30 micrometers and copper foil with thicknesses of 6 to 30 micrometers. Both substrates can have widths from 50 to 500 mm and maximum roll diameters of 400 mm. The electrode thickness range is 70 to 250 micrometers, making the equipment appropriate for a range of coated electrode constructions used in battery development and related research.

The maximum mechanical running speed is 50 m/min. Actual slitting speed is adjustable from 0 to 40 m/min and is selected according to the observed slitting effect. This separation between mechanical running capability and process slitting speed gives operators a defined basis for adapting throughput to the material, knife arrangement, and required finished-edge performance.

Why Choose This Product

• Designed Around Electrode Process Requirements: The equipment integrates traction, alignment, tension transmission, slitting, winding, edge-trim collection, and dust extraction into one coordinated electrode-processing workflow.

• Flexible Production Configuration: A guaranteed 7 to 500 mm slitting-width range and support for multiple battery material systems make the unit suitable for changing R&D and pilot-production requirements.

• Controlled Handling of Thin Materials: Compatibility with thin aluminum and copper foil, combined with edge alignment and tension transmission, supports smooth movement through the cutting and winding sections.

• Organized Finished-Roll Output: Two-shaft differential-shaft offset winding separates the processed strips into rolls, while the dedicated edge-material mechanism manages both side trims.

• Practical Laboratory and Pilot-Scale Footprint: The defined main-equipment, dust-extractor, and knife-holder-cart dimensions provide a clear basis for installation planning and workflow organization.

For a quotation, process review, or application-specific configuration, contact our technical team to discuss the electrode materials, target strip widths, and required slitting conditions.

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