Stacking Machine
Laboratory Semi Automatic Stacking Machine for Lithium Battery Cell Assembly
Item Number : DP07
Price varies based on specs and customizations
- Stacking Accuracy
- ≤ ±0.3 mm
- Stacking Speed
- 4–6 s/sheet (Standard), 6–8 s/sheet (Li Metal)
- Electrode Dimensions
- W: 40–90 mm, L: 40–100 mm
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Product Overview
This laboratory semi-automatic stacking machine is an advanced desktop assembly system engineered specifically for the precision fabrication of pouch-type lithium-ion battery cells. By seamlessly integrating manual electrode sheet loading with fully automated position correction, robotic vacuum transfer, and continuous Z-fold separator interleaving, the equipment significantly accelerates cell prototyping while eliminating the human error inherent in fully manual stacking workflows.
Engineered for demanding research institutions, electrochemical laboratories, and battery pilot development centers, the system accommodates a broad spectrum of cathode and anode chemistries, including conventional lithium-ion, sodium-ion, solid-state, and pure lithium metal electrodes. Its compact desktop footprint allows it to operate seamlessly inside standard inert atmosphere gloveboxes, making it an indispensable tool for moisture- and oxygen-sensitive battery fabrication.
Built upon a rigid mechanical framework with a single-cantilever roll feed design, this unit delivers exceptional mechanical stability and layer-to-layer stacking uniformity. The integration of high-resolution digital tension management, pulse motor micro-stepping, and an intuitive touchscreen controller guarantees consistent, repeatable cell builds across extensive experimental testing cycles.
Key Features
- Automated Servo Constant-Tension Separator Feed: Utilizes a closed-loop servo tensioning mechanism and single-cantilever architecture to ensure the separator film feeds smoothly without wrinkling, stretching, or lateral drift, maintaining structural integrity across all stacking layers.
- Robotic Vacuum Transfer and Stacking: High-performance pneumatic vacuum suction cups automatically pick, transfer, and deposit individual positive and negative electrode sheets onto the stacking stage, preventing mechanical damage, bending, or surface contamination of fragile active materials.
- Precision Pulse Motor Axis Positioning: High-resolution pulse motor drives govern the left-to-right lateral reciprocation of the stacking platform, facilitating ultra-smooth indexing and effortless micro-adjustments to achieve alignment accuracy within ±0.3 mm.
- Universal Adjustable Fixture Architecture: Engineered with adaptable tooling jigs that allow operators to quickly configure the platform for various electrode dimensions without requiring custom-machined replacement parts, maximizing laboratory workflow flexibility.
- Intelligent PLC Control with Touchscreen HMI: Features an industrial-grade programmable logic controller paired with an interactive touchscreen display, allowing users to pre-set stacking layer counts, cycle speeds, and tension parameters while monitoring operational diagnostics in real time.
- Compact Glovebox-Ready Benchtop Form Factor: The space-efficient, low-vibration enclosure is engineered to pass through standard glovebox antechambers and operate continuously under inert gas environments without compromising internal atmosphere purity.
- Dual Material Speed Optimization: Programmable cycle profiles provide optimized transfer dynamics for both standard coated composite electrodes (4–6 seconds per sheet) and ultra-delicate metallic lithium foils (6–8 seconds per sheet).
- Pneumatic Expanding Roll Shaft Clamping: Accommodates industry-standard 3-inch roll cores with an integrated air-expansion clamping shaft, ensuring rapid roll swaps, concentric unwinding, and slip-free separator delivery throughout the fabrication run.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Lithium-ion Pouch Cell Prototyping | Assembly of multilayer pouch cells using standard transition metal oxide cathodes and graphite anodes. | Delivers repeatable layer alignment (≤ ±0.3 mm) to prevent short circuits and ensure uniform current distribution. |
| Lithium Metal & Solid-State Cell Assembly | Stacking ultra-thin, delicate lithium foil anodes and solid-state separator interfaces within an argon-purified environment. | Gentle robotic vacuum manipulation prevents foil deformation, tearing, and surface oxidation during placement. |
| Novel Battery Chemistries R&D | Fabricating experimental sodium-ion, potassium-ion, and multivalent battery coin/pouch hybrid cells. | Rapidly adjustable tooling accommodates custom electrode geometries without costly changeover tooling. |
| Separator Material Evaluation | Evaluating ultra-thin ceramic-coated, polymer, and composite separator membranes under controlled mechanical tension. | Closed-loop tension control prevents membrane stretching, pinhole formation, and uneven separator tensioning. |
| Supercapacitor Stack Fabrication | Interleaving activated carbon electric double-layer capacitor (EDLC) or pseudo-capacitive electrodes with porous membranes. | Rapid cycle indexing and high layer counts (up to 100 layers) enable consistent fabrication of thick capacitive stacks. |
| Electrode Coating Quality Benchmarking | Fabricating baseline multi-layer cells to validate pilot-scale slot-die and doctor-blade slurry coating formulations. | Eliminates manual assembly variances, ensuring electrochemical metrics directly reflect slurry and coating quality. |
Technical Specifications
| Specification Parameter | Value / Range (DP07) |
|---|---|
| Stacking Method | Continuous Z-fold stacking with roll separator interleave |
| Operating Method | Manual electrode staging; automated robotic vacuum pickup, automated separator feed with constant tension control |
| Suction Vacuum Degree | Better than -65 kPa |
| Stacking Alignment Accuracy | Stacking neatness ≤ ±0.3 mm (relative electrode positioning across 25 layers) |
| Electrode Sheet Width | 40 mm to 90 mm |
| Electrode Sheet Length | 40 mm to 100 mm (in tab direction, excluding tab length) |
| Maximum Tab Length | Up to 15 mm |
| Maximum Stacking Thickness | Up to 15 mm (programmable up to 100 layers maximum) |
| Separator Roll Outer Diameter | Maximum Ø 200 mm |
| Separator Roll Core Size | 3.0-inch (76 mm) inner diameter, air expansion shaft clamping |
| Stacking Speed (Standard Electrodes) | 4 to 6 seconds per sheet (excluding initial cell setup time) |
| Stacking Speed (Lithium Metal Foils) | 6 to 8 seconds per sheet (excluding initial cell setup time) |
| Electrical Power Requirements | Single-phase AC 220V ±10%, 50Hz/60Hz, 0.4 kW (110VAC customizable) |
| Pneumatic Supply Requirements | 0.5 MPa to 0.8 MPa clean dry compressed air / inert gas |
| Overall Equipment Dimensions | L800 mm × W600 mm × H720 mm |
| Total Equipment Weight | 120 kg |
Why Choose This Product
- Superior Engineering Precision: Designed with closed-loop servo tensioning and high-resolution pulse motor positioning to eliminate the dimensional inconsistencies and edge overhang defects common in manual assembly.
- Full Atmosphere Adaptability: Engineered specifically with an airtight desktop chassis and low-outgassing components, enabling continuous, reliable operation inside standard inert argon or nitrogen gloveboxes.
- Broad Research Versatility: Accommodates a comprehensive range of cell sizes, chemistries, and separator thicknesses through fully adjustable alignment jigs and intuitive multi-recipe PLC programming.
- Long-Term Industrial Durability: Constructed from corrosion-resistant hard-anodized aluminum and premium industrial pneumatic components, ensuring minimal maintenance and dependable operation under high-throughput laboratory conditions.
Contact our technical engineering team today to discuss your cell prototyping requirements, request a detailed quotation, or explore custom dimensional configurations for your laboratory.
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