Semi Automatic Cylindrical Lithium Battery Winding Machine

Product Overview

This semi-automatic cylindrical lithium battery winding machine is designed for precision winding of cylindrical lithium-ion battery cells. Operators manually introduce the positive and negative electrode sheets into the winding station, where the electrodes are layered with separator film according to the required process sequence. The equipment then performs automatic winding, separator cutting, termination tape application, and finished cell unloading. This workflow combines operator flexibility with repeatable automated movement at the critical winding stages.

The system is suitable for cylindrical cell development, pilot production, process validation, and small-batch manufacturing. It supports electrode and separator materials within defined dimensional ranges and produces cells with an applicable outer diameter of ∮15 mm to ∮35 mm. Typical users include battery R&D laboratories, cell manufacturers, universities, technical institutes, and advanced materials facilities requiring controlled electrode alignment and consistent cylindrical cell construction.

The equipment is built for demanding research and production environments where winding consistency, material protection, and operating efficiency directly affect downstream cell quality. Active separator unwinding, controlled tension adjustment, dust removal, automatic needle exchange, and reliable termination taping help reduce common winding defects. When incoming materials meet the specified tolerances, the unit can achieve separator and electrode alignment errors below ±0.5 mm, with a qualified rate of at least 98%, excluding factors unrelated to the equipment.

Key Features

• Semi-Automatic Material Loading: Operators manually introduce the positive and negative electrode sheets while the equipment automates the winding sequence, needle exchange, termination taping, and cell unloading. This arrangement provides practical flexibility for laboratory and pilot-line work without sacrificing process repeatability.

• Single-Needle Through-Winding Structure: The single-needle through-winding design supports controlled cylindrical cell formation and straightforward adjustment for different winding requirements. Needle specifications can be supplied according to customer requirements within the referenced size ranges.

• Adjustable Winding Speed: The winding needle speed can be adjusted to match electrode length, material behavior, and process requirements. Adjustable operation helps users balance throughput, alignment stability, and material handling during process development.

• Active Dual Separator Unwinding: Two separator rolls use active unwinding to maintain stable material delivery during winding. A tension proximity-switch control method automatically and smoothly adjusts separator tension throughout the winding process.

• Controlled Horizontal Termination Taping: The termination tape is applied horizontally, perpendicular to the electrode tabs. This method supports smooth tape placement, precise tape positioning, stable adhesion, and reduced risk of pulling the finished cell tight during the taping operation.

• Integrated Electrode Dust Removal: A dedicated electrode dust removal device helps clear particulate contamination before or during the winding process. Cleaner material handling supports more consistent cell formation and helps reduce contamination-related quality risks.

• Separator Outer-Wrap Finishing: The process provides separator outer wrapping at the end of the winding cycle. The specified sequence ensures that the separator completely wraps the negative electrode and the negative electrode wraps the positive electrode.

• Defect-Resistant Cell Formation: Under suitable incoming-material conditions, the equipment is designed to produce cells without damage, core pulling, or electrode displacement. Alignment control supports a finished cut-face alignment of ±0.5 mm.

• Fast Specification Changeover: Operating adjustments and specification changes are designed to be simple and quick. This is useful for laboratories and pilot lines that frequently evaluate different electrode dimensions, separator formats, or cell diameters.

• Production and Fault Feedback: The control system includes built-in fault-stop and fault-indication functions, together with one-button reset operation. These functions support straightforward troubleshooting and help limit the impact of abnormal operating conditions.

Applications

Technical Specifications

Product and Process Parameters

Winding and Alignment Performance

Material Compatibility

Tooling and Utility Requirements

Equipment Configuration and Construction

Control and Supporting Systems

Why Choose This Product

• Controlled Production Consistency: Automatic winding, tension adjustment, tape application, needle exchange, and unloading reduce variation across repeated cylindrical cell builds.

• Precision-Oriented Construction: The equipment is designed around defined electrode, separator, and tooling tolerances, supporting alignment performance below ±0.5 mm when material conditions are controlled.

• Reliable Material Handling: Active dual separator unwinding, dust removal, and horizontal termination taping help protect delicate materials and reduce common defects such as wrinkles, displacement, and excessive cell tightening.

• Practical Pilot-Line Flexibility: Manual electrode introduction and quick specification adjustment make the unit suitable for research programs, process verification, custom cell formats, and low-volume production.

• Integrated Industrial Controls: PLC control, touchscreen operation, fault stopping, built-in prompts, one-button reset, and supplied spares support efficient operation and maintainability.

Choose a precision winding platform engineered for repeatable cylindrical lithium-ion cell production and contact KINTEK for a quotation, configuration review, or customized winding solution.

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