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Solid State Battery Stacking Machine
Our solid state battery stacking machine is designed for Z‑fold assembly of cathodes, anodes, and separator sheets into lithium‑ion or solid‑state battery cells, followed by thermal lamination. This high precision solid state battery stacker uses CCD vision to achieve alignment accuracy of ±0.35mm (cell stack), ±0.3mm (separator edge), and ±0.3mm (adjacent electrodes). As an automatic battery cell stacking equipment for solid state, it delivers ≤1.8 seconds per cell, 98% uptime, and ≥99% yield – ideal for R&D, pilot lines, and high‑precision cell manufacturing.
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Solid State Battery Stacking Machine – CCD‑Guided Z‑Fold Stacking for High‑Precision All‑Solid‑State Cell Assembly
⚡ Key Performance Metrics: ≤1.8s/cell stacking cycle | ≤±0.35mm alignment accuracy | 98% uptime | ≥99% first‑pass yield | Thermal lamination
Product Overview – Solid State Battery Stacking Machine
PPCELL’s solid state battery stacking machine is a high‑precision Z‑fold stacking system designed for all‑solid‑state batteries (ASSBs) and conventional lithium‑ion pouch cells. It stacks cathodes, anodes, and separator sheets (including solid electrolyte films) alternately in a Z‑fold pattern, followed by thermal lamination to bond the layers. This CCD‑guided Z‑fold stacker ensures consistent alignment and high throughput, directly impacting cell performance, safety, and cycle life – ideal for R&D labs, pilot lines, and high‑precision cell manufacturing.
Technical Specifications – Key Parameters
| Parameter | Specification |
|---|---|
| Single‑cell stacking cycle time | ≤1.8 seconds per cell |
| Electrode thickness range | 0.2 – 0.8 mm |
| Electrode‑to‑separator alignment (center deviation) | ≤±0.35 mm |
| Separator edge alignment | ≤±0.3 mm |
| Adjacent electrode alignment (center deviation) | ≤±0.3 mm |
| Overall stack alignment (center deviation) | ≤±0.35 mm |
| Equipment uptime (availability) | 98% (failures caused only by this machine) |
| First‑pass yield | ≥99% (defects caused only by this machine) |
| Post‑stacking process | Thermal lamination (temperature and pressure adjustable) |
Why Choose PPCELL Solid State Battery Stacker?
- CCD Vision Alignment: Monitors electrode and separator position in real time, correcting placement to achieve high stacking precision. Industry alternatives achieve positioning accuracy as high as 0.05mm – contact us for custom high‑precision configurations.
- Z‑Fold Stacking Mechanism: Alternately places cathodes and anodes onto a continuously folded separator, building the stack layer by layer with minimal mechanical stress – critical for handling brittle solid electrolyte films.
- Thermal Lamination After Stacking: Fuses the stacked cell under controlled temperature and pressure, enhancing structural integrity and solid‑solid interface contact.
- High Efficiency & Yield: ≤1.8 seconds per cell cycle time, 98% uptime, and ≥99% first‑pass yield – ideal for R&D, pilot lines, and high‑precision cell manufacturing.
- Dual Compatibility: Works for both conventional lithium‑ion batteries and all‑solid‑state batteries (ASSBs) where the separator is often a solid electrolyte film.
- MES‑Ready: Optional data logging and recipe management for full traceability and process optimization.
Process Flow: Z‑Fold Stacking + Thermal Lamination
The fully automatic process sequence is as follows:
- Separator feeding – Continuous separator film is fed into the Z‑fold mechanism.
- CCD alignment of electrode – Cathode or anode is positioned by vision.
- Electrode placement – The electrode is placed onto the folded separator.
- Repeat – The process alternates between cathode and anode, building the stack layer by layer.
- Z‑fold completion – After reaching the programmed number of layers, the separator is cut.
- Thermal lamination – The complete stack is transferred to a heated press for lamination, bonding all layers into a solid unit.
- Unloading – The laminated cell is discharged for further assembly (tab welding, packaging, etc.).
All parameters (number of layers, lamination temperature, pressure, time) are programmable via HMI. Data logging and MES integration are available.
Applications – Solid State & Lithium‑Ion Battery Assembly
- All‑Solid‑State Battery (ASSB) R&D and Pilot Lines – High‑precision stacking of solid electrolyte films with electrodes. The solid‑state battery market is experiencing explosive growth, with a search volume of 110K and growth of +500%.
- Conventional Lithium‑Ion Battery Production – Z‑fold stacking for pouch cells.
- Advanced Battery Development – For EVs, consumer electronics, and medical devices requiring high alignment accuracy. Industry leaders have achieved stacking speeds as fast as 0.35s/pcs, setting new benchmarks for ASSB mass production.
FAQ – Frequently Asked Questions
Q1: What is the difference between Z‑fold stacking and sheet stacking for solid‑state batteries?
A: Z‑fold stacking uses a continuous separator web that is folded back and forth, with electrodes placed between folds. This method offers higher throughput and continuous operation. Sheet stacking uses individual separator sheets and is more flexible for material changes. Our machine supports both modes.
Q2: How does CCD vision alignment improve stacking accuracy for solid‑state cells?
A: CCD cameras capture the position of each electrode and separator layer in real time. The system compares the actual position to the target and corrects placement before stacking. This closed‑loop control achieves ±0.35mm alignment accuracy – essential for preventing internal short circuits in solid‑state cells.
Q3: Can this machine handle brittle solid electrolyte films?
A: Yes. Our stacking mechanism uses gentle handling with controlled acceleration and deceleration profiles. The Z‑fold method minimizes mechanical stress on the separator, while optional vacuum or bionic suction grippers (similar to industry best practices[reference:10]) prevent damage to fragile solid electrolyte materials.
Q4: What is the typical scale‑up path from this machine to mass production?
A: Our machine is designed for R&D and pilot lines. For mass production, we offer multi‑station stacking systems with higher throughput (up to 0.35s per cell[reference:11]). Process parameters developed on this unit can be directly transferred to production models with similar stacking geometry and alignment principles.
Q5: Does the machine support data logging and MES integration?
A: Yes. All alignment data, cycle counts, and process parameters can be logged and exported. Optional MES integration via Ethernet/IP or Modbus TCP enables real‑time data upload and recipe management – essential for full traceability and quality control.
Contact PPCELL for Your Solid‑State Battery Stacking Solution
Contact our engineering team to discuss your specific solid‑state battery stacking requirements. We provide free process consultation, on‑site commissioning, operator training, and a 1‑year warranty with lifetime technical support.