Semi-Automatic Lamination Stacking Machine for Battery Cells

The Semi-Automatic Lamination Stacking Machine (Model: BR-BDP200-B) is a precision instrument designed specifically for the stacking process of lithium-ion battery electrodes. By utilizing a Z-shape (Z-folding) lamination method, the device interleaves positive and negative electrodes with the separator film.

Engineered for both R&D sample production and small-batch trial production, this equipment offers significant improvements over manual methods in terms of efficiency, alignment uniformity, and consistent cell performance.

Key Features & Advantages

• Precision Z-Shape Stacking: Driven by a cylinder system, the separator moves left and right to achieve accurate Z-folding with a cantilever design for easy operation.

• Automatic Tension Control: Features an integrated tension system for the separator roll to ensure the film remains flat and wrinkle-free during the process.

• High Versatility: Compatible with a wide range of battery sizes, allowing for quick adjustments between different cell specifications.

• Intelligent Memory System: Automatically maintains the last used parameters after power-off, minimizing setup time for recurring tasks.

• Automated Counter: Includes an automatic counting and zeroing function for precise production tracking.

• Compact Footprint: Desktop-style design saves laboratory space while maintaining a high-end, professional appearance.

Technical Specifications

Case Study: Energy Storage Battery (LiFePO4) Production

A manufacturing firm successfully implemented this machine for the production of Lithium Iron Phosphate (LiFePO4) cells used in home energy storage systems.

1. Material Adaptability

The equipment handles diverse materials including LiFePO4 cathodes, graphite anodes, and Polyethylene (PE) separators with high precision, addressing the specific density requirements of energy storage cells.

2. Process Optimization

• Automated Alignment: Advanced sensors and alignment systems reduce material waste and ensure internal consistency.

• Pressure Compensation: Real-time monitoring ensures each layer is tightly and uniformly pressed, preventing interlayer detachment.

• Quality Control: The system triggers alarms for alignment errors and automatically detects finished cell dimensions to ensure 100% compliance with specifications.

3. Key Achievements

• Efficiency Gain: Increased production speed by 40% compared to traditional manual lamination.

• Consistency: Significantly improved the internal resistance and capacity distribution across battery batches.

• Scalability: The highly flexible setup allowed the facility to pivot between different battery models with minimal downtime.

Ideal Applications

• Battery Research & Development: Testing new electrode and separator materials.

• University Laboratories: Educational and scientific battery assembly experiments.

• Custom Battery Manufacturing: Specialized production of high-performance or non-standard sized battery cells.