Semi Automatic Cylindrical Prismatic Lithium Ion Battery Winding Machine

Product Overview

This semi-automatic winding system is designed for forming cylindrical and prismatic lithium-ion battery cells with a controlled, repeatable winding process. Operators manually load the electrode sheets, while the equipment performs automatic winding and automatic mandrel withdrawal. Interchangeable mandrel assemblies allow one unit to support both cell formats, providing practical flexibility for changing battery development requirements.

The equipment is suited to lithium-ion cell research, process development, and pilot-scale production where reliable electrode positioning and controlled winding tension are critical. It accommodates oil-based electrode sheets, water-based electrode sheets, and various separator materials. Process routes can be selected for positive-electrode-first or negative-electrode-first loading, as well as separator-overwrap or electrode-overwrap endings.

A stepper-motor-driven winding shaft maintains constant winding speed, while the electrode and separator tensions remain relatively stable through the winding cycle. This supports consistent cell tension, electrode alignment, and separator positioning. With a qualified rate of at least 98% and utilization of at least 95%, the unit is built for stable, efficient operation under defined laboratory production conditions.

Key Features

• Dual Cell-Format Capability: Replaceable mandrel assemblies support cylindrical cells with a Phi3.5-Phi5 mm mandrel range and prismatic cells using a combined width range of 38-60. This enables the equipment to be configured around the required cell geometry rather than limiting operation to one format.

• Controlled Winding Accuracy: Winding accuracy of <=0.5 mm supports controlled electrode and separator placement during cell formation. This level of positional control is important where repeatable internal layer registration is required across a production run.

• Stable Stepper-Motor Drive: The winding shaft is driven by a stepper motor to maintain a constant winding speed. Stable rotational control helps the system deliver a consistent winding cycle and supports repeatable handling of electrode and separator materials.

• Consistent Material Tension: Electrode tension and separator tension remain relatively constant during winding. The resulting consistency in cell tension, electrode position, and separator position is intended to improve uniformity of cell capacity and internal resistance.

• Continuous Separator Handling: The separator remains continuous throughout the winding process, reducing manual contact during this stage. Reduced handling helps limit opportunities for internal short circuits and self-discharge associated with unnecessary human contact.

• Process-Selectable Loading Sequence: The unit can be operated with the positive electrode loaded first followed by the negative electrode, or with the negative electrode loaded first followed by the positive electrode. This allows the winding sequence to be selected according to the applicable process requirement.

• Configurable End-Wrap Method: Select separator outer wrapping or electrode-sheet outer wrapping according to the required cell process. This provides a defined choice for the finished winding configuration without changing the core operating principle.

• Adjustable Feeding Guide: The feed-slot or guide-plate width is adjustable on one side. This adjustment helps accommodate material widths and supports controlled entry of electrode sheets into the winding area.

• Touchscreen Parameter Setting: A touchscreen operating interface allows working parameters to be set directly at the equipment. The operator can use the interface to establish the required process settings in a straightforward, accessible format.

• Stable Production Performance: For cylindrical cells, the stated production pace is 5-7 ppm; for prismatic cells, it is 3-5 PPM, based on a 750 mm electrode-sheet length. Actual cycle time remains dependent on electrode length, material quality, and operator proficiency, providing a realistic basis for process planning.

Applications

Technical Specifications

Why Choose This Product

• Repeatable winding control: The combination of stepper-motor-driven constant-speed winding and relatively stable electrode and separator tension is engineered around consistency in each wound cell.

• Format and process flexibility: Interchangeable cylindrical and prismatic mandrel assemblies, selectable electrode-loading order, and selectable outer-wrap methods allow the unit to align with defined battery-cell process requirements.

• Production-oriented performance: Stated qualified-rate and utilization-rate targets of >=98% and >=95% position the equipment for stable operation where repeatability and operational continuity matter.

• Defined installation requirements: Clear compressed-air, power, cleanliness, temperature, humidity, noise, and floor-loading requirements make it easier for technical teams to assess site readiness before deployment.

• Practical equipment specification: The adjustable material guide, touchscreen parameter setting, Chinese operating interface, standard warm gray 1C appearance, and customer-specified color option provide a defined operating and integration package.

Contact us for a quote or a configuration discussion based on your cylindrical or prismatic lithium-ion battery winding process.

Trusted by Industry Leaders